/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:32:41,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:32:41,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:32:41,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 19:32:41,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:32:41,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:32:41,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:32:41,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:32:41,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:32:41,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:32:41,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:32:41,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:32:41,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:32:41,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:32:41,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:32:41,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:32:41,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 19:32:41,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:32:41,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:32:41,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:32:41,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:32:41,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:32:41,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:32:41,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:32:41,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:32:41,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:32:41,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:32:41,234 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:32:41,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:32:41,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:32:41,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:32:41,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:32:41,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:32:41,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:32:41,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:32:41,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:32:41,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:32:41,236 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:32:41,237 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:32:41,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:32:41,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:32:41,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:32:41,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:32:41,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:32:41,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:32:41,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:32:41,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:32:41,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:32:41,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:32:41,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:32:41,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:32:41,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:32:41,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:32:41,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:32:41,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:32:41,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:32:41,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:32:41,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:32:41,631 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:32:41,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-10-13 19:32:41,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d73ae7a/d267899cea2147d385ac433f419f1032/FLAG420c61146 [2021-10-13 19:32:42,293 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:32:42,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-10-13 19:32:42,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d73ae7a/d267899cea2147d385ac433f419f1032/FLAG420c61146 [2021-10-13 19:32:42,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d73ae7a/d267899cea2147d385ac433f419f1032 [2021-10-13 19:32:42,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:32:42,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:32:42,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:32:42,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:32:42,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:32:42,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:32:42" (1/1) ... [2021-10-13 19:32:42,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5206b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:42, skipping insertion in model container [2021-10-13 19:32:42,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:32:42" (1/1) ... [2021-10-13 19:32:42,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:32:42,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:32:43,039 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-10-13 19:32:43,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:32:43,075 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:32:43,132 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-10-13 19:32:43,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:32:43,166 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:32:43,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43 WrapperNode [2021-10-13 19:32:43,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:32:43,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:32:43,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:32:43,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:32:43,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:32:43,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:32:43,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:32:43,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:32:43,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:32:43,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:32:43,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:32:43,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:32:43,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (1/1) ... [2021-10-13 19:32:43,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:32:43,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:32:43,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 19:32:43,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 19:32:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:32:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:32:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:32:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:32:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:32:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:32:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:32:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:32:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:32:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 19:32:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 19:32:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:32:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:32:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:32:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:32:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:32:43,466 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:32:46,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:32:46,453 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-10-13 19:32:46,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:32:46 BoogieIcfgContainer [2021-10-13 19:32:46,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:32:46,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:32:46,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:32:46,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:32:46,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:32:42" (1/3) ... [2021-10-13 19:32:46,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aab91fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:32:46, skipping insertion in model container [2021-10-13 19:32:46,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:32:43" (2/3) ... [2021-10-13 19:32:46,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aab91fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:32:46, skipping insertion in model container [2021-10-13 19:32:46,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:32:46" (3/3) ... [2021-10-13 19:32:46,465 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2021-10-13 19:32:46,472 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:32:46,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:32:46,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-10-13 19:32:46,473 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:32:46,548 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,548 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,549 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,549 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,549 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,549 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,549 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,550 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,551 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,551 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,552 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,553 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,553 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,554 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,554 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,554 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,554 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,554 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,555 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,556 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,556 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,557 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,557 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,558 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,558 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,558 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,559 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,559 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,560 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,560 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,560 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,560 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,560 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,560 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,561 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,561 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,562 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,562 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,563 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,564 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,564 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,564 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,565 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,566 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,566 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,567 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,567 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,568 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,568 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,568 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,569 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,569 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,569 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,570 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,570 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,570 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,571 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,571 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,571 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,572 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,572 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,573 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,573 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,574 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,576 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,577 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,577 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,578 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,579 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,579 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,581 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,581 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,582 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,586 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,587 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,587 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,588 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,589 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,589 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,590 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,592 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,593 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,593 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,594 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,597 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,597 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,598 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,598 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,599 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,599 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,602 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,604 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,606 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,606 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,607 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,607 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,608 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,611 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,611 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,612 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,612 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,616 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,617 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,617 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,617 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,617 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,617 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,619 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,623 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,623 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,624 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,624 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,624 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,624 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,626 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,626 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,626 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,626 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,626 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,627 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,627 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,627 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,630 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,631 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,631 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,631 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,632 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,633 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,633 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,634 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,634 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,634 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,634 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,634 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,635 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,636 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,636 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,637 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,639 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,640 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,641 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,642 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,642 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,643 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,643 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,644 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,645 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,645 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,645 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,646 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,647 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,648 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,648 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,649 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,650 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,651 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,651 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,651 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,653 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,653 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,653 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,654 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,656 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,656 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,656 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,656 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,656 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,657 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,658 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,658 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,658 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,658 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,658 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,658 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,659 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,661 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,662 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,662 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,663 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,664 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,664 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,670 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,670 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,684 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,692 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,692 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,700 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,701 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,702 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,703 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,708 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,709 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,710 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,711 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,712 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,712 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,712 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,712 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,713 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,714 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,714 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,714 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,714 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,714 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,715 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,716 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,716 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,716 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,716 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,717 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,717 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,717 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,717 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,717 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,718 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,719 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,719 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,719 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,719 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,721 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,722 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,723 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,723 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,724 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,725 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,726 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,728 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,729 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,730 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,731 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,732 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,734 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,736 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,737 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,737 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,737 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,737 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,737 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,737 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,738 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,740 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,740 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,740 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,740 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,744 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,745 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,745 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,745 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,745 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,745 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,745 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,747 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,748 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,748 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,748 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,748 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,748 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,749 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,751 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,751 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,751 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,751 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,751 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,754 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,756 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,756 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,756 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,757 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,758 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,758 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,758 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,758 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,758 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,758 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,765 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,766 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,766 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,767 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,771 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,771 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,771 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,771 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,772 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,772 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,772 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,772 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,772 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,773 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,773 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,773 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,773 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,773 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,773 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,774 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,774 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#t~short35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,777 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,778 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:32:46,784 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 19:32:46,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:32:46,860 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 19:32:46,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2021-10-13 19:32:46,884 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:32:46,899 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 228 transitions, 480 flow [2021-10-13 19:32:46,903 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 228 transitions, 480 flow [2021-10-13 19:32:46,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 222 places, 228 transitions, 480 flow [2021-10-13 19:32:47,044 INFO L129 PetriNetUnfolder]: 16/225 cut-off events. [2021-10-13 19:32:47,045 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 19:32:47,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 225 events. 16/225 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 390 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 175. Up to 2 conditions per place. [2021-10-13 19:32:47,062 INFO L116 LiptonReduction]: Number of co-enabled transitions 5928 [2021-10-13 19:33:36,447 INFO L131 LiptonReduction]: Checked pairs total: 8556 [2021-10-13 19:33:36,447 INFO L133 LiptonReduction]: Total number of compositions: 244 [2021-10-13 19:33:36,456 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 75 transitions, 174 flow [2021-10-13 19:33:36,871 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11052 states, 7674 states have (on average 4.9502215272348185) internal successors, (37988), 11051 states have internal predecessors, (37988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:36,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 11052 states, 7674 states have (on average 4.9502215272348185) internal successors, (37988), 11051 states have internal predecessors, (37988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:36,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:33:36,928 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:36,928 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:33:36,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:36,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:36,937 INFO L82 PathProgramCache]: Analyzing trace with hash 53246, now seen corresponding path program 1 times [2021-10-13 19:33:36,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:36,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71262567] [2021-10-13 19:33:36,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:36,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:37,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:37,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71262567] [2021-10-13 19:33:37,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71262567] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:33:37,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:33:37,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:33:37,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873443007] [2021-10-13 19:33:37,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:33:37,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:33:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:33:37,318 INFO L87 Difference]: Start difference. First operand has 11052 states, 7674 states have (on average 4.9502215272348185) internal successors, (37988), 11051 states have internal predecessors, (37988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:37,517 INFO L93 Difference]: Finished difference Result 6379 states and 21695 transitions. [2021-10-13 19:33:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:33:37,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-13 19:33:37,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:37,627 INFO L225 Difference]: With dead ends: 6379 [2021-10-13 19:33:37,627 INFO L226 Difference]: Without dead ends: 6379 [2021-10-13 19:33:37,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:33:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6379 states. [2021-10-13 19:33:37,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6379 to 3194. [2021-10-13 19:33:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 2462 states have (on average 4.408610885458977) internal successors, (10854), 3193 states have internal predecessors, (10854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:37,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 10854 transitions. [2021-10-13 19:33:37,929 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 10854 transitions. Word has length 2 [2021-10-13 19:33:37,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:37,930 INFO L470 AbstractCegarLoop]: Abstraction has 3194 states and 10854 transitions. [2021-10-13 19:33:37,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 10854 transitions. [2021-10-13 19:33:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:33:37,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:37,931 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:33:37,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:33:37,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1653094, now seen corresponding path program 1 times [2021-10-13 19:33:37,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:37,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589607703] [2021-10-13 19:33:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:37,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:38,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:38,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589607703] [2021-10-13 19:33:38,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589607703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:38,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018180632] [2021-10-13 19:33:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:38,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:38,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:38,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:38,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 19:33:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:38,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:33:38,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:38,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:38,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018180632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:33:38,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:33:38,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-13 19:33:38,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241840015] [2021-10-13 19:33:38,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:33:38,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:38,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:33:38,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:33:38,374 INFO L87 Difference]: Start difference. First operand 3194 states and 10854 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:38,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:38,554 INFO L93 Difference]: Finished difference Result 6377 states and 21693 transitions. [2021-10-13 19:33:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:33:38,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-13 19:33:38,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:38,632 INFO L225 Difference]: With dead ends: 6377 [2021-10-13 19:33:38,632 INFO L226 Difference]: Without dead ends: 6377 [2021-10-13 19:33:38,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:33:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6377 states. [2021-10-13 19:33:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6377 to 3192. [2021-10-13 19:33:38,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2462 states have (on average 4.407798537774167) internal successors, (10852), 3191 states have internal predecessors, (10852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 10852 transitions. [2021-10-13 19:33:38,839 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 10852 transitions. Word has length 3 [2021-10-13 19:33:38,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:38,839 INFO L470 AbstractCegarLoop]: Abstraction has 3192 states and 10852 transitions. [2021-10-13 19:33:38,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:38,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 10852 transitions. [2021-10-13 19:33:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:33:38,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:38,842 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:33:38,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:39,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:39,057 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:39,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:39,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1653086, now seen corresponding path program 1 times [2021-10-13 19:33:39,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:39,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83353418] [2021-10-13 19:33:39,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:39,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:39,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:39,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83353418] [2021-10-13 19:33:39,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83353418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:39,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209783746] [2021-10-13 19:33:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:39,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:39,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:39,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:39,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 19:33:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:39,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:33:39,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:39,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209783746] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:39,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:39,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:33:39,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890199488] [2021-10-13 19:33:39,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:33:39,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:39,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:33:39,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:33:39,421 INFO L87 Difference]: Start difference. First operand 3192 states and 10852 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:39,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:39,670 INFO L93 Difference]: Finished difference Result 9564 states and 32538 transitions. [2021-10-13 19:33:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:33:39,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-13 19:33:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:39,746 INFO L225 Difference]: With dead ends: 9564 [2021-10-13 19:33:39,746 INFO L226 Difference]: Without dead ends: 9564 [2021-10-13 19:33:39,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:33:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9564 states. [2021-10-13 19:33:39,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9564 to 3194. [2021-10-13 19:33:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 2464 states have (on average 4.4058441558441555) internal successors, (10856), 3193 states have internal predecessors, (10856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:39,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 10856 transitions. [2021-10-13 19:33:39,972 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 10856 transitions. Word has length 3 [2021-10-13 19:33:39,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:39,973 INFO L470 AbstractCegarLoop]: Abstraction has 3194 states and 10856 transitions. [2021-10-13 19:33:39,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 10856 transitions. [2021-10-13 19:33:39,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:33:39,973 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:39,974 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:33:40,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:40,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:40,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:40,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:40,189 INFO L82 PathProgramCache]: Analyzing trace with hash 51248374, now seen corresponding path program 2 times [2021-10-13 19:33:40,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:40,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13146199] [2021-10-13 19:33:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:40,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:40,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:40,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13146199] [2021-10-13 19:33:40,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13146199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:40,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184112769] [2021-10-13 19:33:40,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:33:40,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:40,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:40,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:40,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 19:33:40,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:33:40,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:33:40,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:33:40,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:40,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:33:40,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184112769] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:33:40,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:33:40,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:33:40,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113535386] [2021-10-13 19:33:40,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:33:40,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:40,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:33:40,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:33:40,497 INFO L87 Difference]: Start difference. First operand 3194 states and 10856 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:40,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:40,537 INFO L93 Difference]: Finished difference Result 3193 states and 10855 transitions. [2021-10-13 19:33:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:33:40,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-13 19:33:40,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:40,555 INFO L225 Difference]: With dead ends: 3193 [2021-10-13 19:33:40,555 INFO L226 Difference]: Without dead ends: 3193 [2021-10-13 19:33:40,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:33:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-10-13 19:33:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3191. [2021-10-13 19:33:40,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3191 states, 2462 states have (on average 4.407392363931763) internal successors, (10851), 3190 states have internal predecessors, (10851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:40,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3191 states to 3191 states and 10851 transitions. [2021-10-13 19:33:40,720 INFO L78 Accepts]: Start accepts. Automaton has 3191 states and 10851 transitions. Word has length 4 [2021-10-13 19:33:40,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:40,720 INFO L470 AbstractCegarLoop]: Abstraction has 3191 states and 10851 transitions. [2021-10-13 19:33:40,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3191 states and 10851 transitions. [2021-10-13 19:33:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 19:33:40,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:40,721 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-13 19:33:40,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:40,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:40,937 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1588939637, now seen corresponding path program 1 times [2021-10-13 19:33:40,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:40,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269798157] [2021-10-13 19:33:40,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:40,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:41,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:41,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269798157] [2021-10-13 19:33:41,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269798157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:33:41,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:33:41,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:33:41,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394506823] [2021-10-13 19:33:41,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:33:41,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:33:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:33:41,035 INFO L87 Difference]: Start difference. First operand 3191 states and 10851 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:41,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:41,154 INFO L93 Difference]: Finished difference Result 3193 states and 10852 transitions. [2021-10-13 19:33:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:33:41,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 19:33:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:41,172 INFO L225 Difference]: With dead ends: 3193 [2021-10-13 19:33:41,172 INFO L226 Difference]: Without dead ends: 3192 [2021-10-13 19:33:41,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:33:41,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2021-10-13 19:33:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3192. [2021-10-13 19:33:41,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 2463 states have (on average 4.405602923264312) internal successors, (10851), 3191 states have internal predecessors, (10851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:41,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 10851 transitions. [2021-10-13 19:33:41,286 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 10851 transitions. Word has length 5 [2021-10-13 19:33:41,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:41,286 INFO L470 AbstractCegarLoop]: Abstraction has 3192 states and 10851 transitions. [2021-10-13 19:33:41,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:41,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 10851 transitions. [2021-10-13 19:33:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:33:41,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:41,288 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-10-13 19:33:41,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:33:41,288 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:41,289 INFO L82 PathProgramCache]: Analyzing trace with hash 2005371149, now seen corresponding path program 1 times [2021-10-13 19:33:41,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:41,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378698137] [2021-10-13 19:33:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:41,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:41,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:41,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378698137] [2021-10-13 19:33:41,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378698137] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:41,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740450495] [2021-10-13 19:33:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:41,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:41,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:41,361 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:41,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 19:33:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:41,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 19:33:41,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:41,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740450495] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:41,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:41,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 19:33:41,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372699687] [2021-10-13 19:33:41,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:33:41,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:33:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:33:41,632 INFO L87 Difference]: Start difference. First operand 3192 states and 10851 transitions. Second operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:41,928 INFO L93 Difference]: Finished difference Result 5870 states and 19939 transitions. [2021-10-13 19:33:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:33:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:41,963 INFO L225 Difference]: With dead ends: 5870 [2021-10-13 19:33:41,963 INFO L226 Difference]: Without dead ends: 5870 [2021-10-13 19:33:41,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 58.4ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:33:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5870 states. [2021-10-13 19:33:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5870 to 4276. [2021-10-13 19:33:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 3547 states have (on average 4.924725119819565) internal successors, (17468), 4275 states have internal predecessors, (17468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 17468 transitions. [2021-10-13 19:33:42,170 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 17468 transitions. Word has length 6 [2021-10-13 19:33:42,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:42,172 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 17468 transitions. [2021-10-13 19:33:42,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 17468 transitions. [2021-10-13 19:33:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:33:42,173 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:42,173 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2021-10-13 19:33:42,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:42,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:42,387 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2029846133, now seen corresponding path program 2 times [2021-10-13 19:33:42,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:42,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918702192] [2021-10-13 19:33:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:42,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:33:42,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:42,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918702192] [2021-10-13 19:33:42,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918702192] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:42,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290848751] [2021-10-13 19:33:42,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:33:42,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:42,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:42,467 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:42,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 19:33:42,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:33:42,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:33:42,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:33:42,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:33:42,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290848751] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:33:42,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:33:42,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-10-13 19:33:42,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899762932] [2021-10-13 19:33:42,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:33:42,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:33:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:33:42,723 INFO L87 Difference]: Start difference. First operand 4276 states and 17468 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:42,829 INFO L93 Difference]: Finished difference Result 3765 states and 15710 transitions. [2021-10-13 19:33:42,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:33:42,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 19:33:42,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:42,853 INFO L225 Difference]: With dead ends: 3765 [2021-10-13 19:33:42,854 INFO L226 Difference]: Without dead ends: 3765 [2021-10-13 19:33:42,854 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 19.0ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:33:42,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2021-10-13 19:33:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 2683. [2021-10-13 19:33:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2108 states have (on average 4.314516129032258) internal successors, (9095), 2682 states have internal predecessors, (9095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 9095 transitions. [2021-10-13 19:33:42,956 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 9095 transitions. Word has length 7 [2021-10-13 19:33:42,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:42,957 INFO L470 AbstractCegarLoop]: Abstraction has 2683 states and 9095 transitions. [2021-10-13 19:33:42,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:42,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 9095 transitions. [2021-10-13 19:33:42,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:33:42,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:42,958 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:42,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:43,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:43,173 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:43,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1278734292, now seen corresponding path program 1 times [2021-10-13 19:33:43,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:43,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784905605] [2021-10-13 19:33:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:43,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:33:43,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:43,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784905605] [2021-10-13 19:33:43,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784905605] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:33:43,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:33:43,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:33:43,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145678452] [2021-10-13 19:33:43,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:33:43,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:43,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:33:43,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:33:43,464 INFO L87 Difference]: Start difference. First operand 2683 states and 9095 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:43,598 INFO L93 Difference]: Finished difference Result 4381 states and 15062 transitions. [2021-10-13 19:33:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:33:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:33:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:43,621 INFO L225 Difference]: With dead ends: 4381 [2021-10-13 19:33:43,622 INFO L226 Difference]: Without dead ends: 4381 [2021-10-13 19:33:43,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:33:43,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2021-10-13 19:33:43,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 2927. [2021-10-13 19:33:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2352 states have (on average 4.845663265306122) internal successors, (11397), 2926 states have internal predecessors, (11397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 11397 transitions. [2021-10-13 19:33:43,730 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 11397 transitions. Word has length 8 [2021-10-13 19:33:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:43,731 INFO L470 AbstractCegarLoop]: Abstraction has 2927 states and 11397 transitions. [2021-10-13 19:33:43,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 11397 transitions. [2021-10-13 19:33:43,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:33:43,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:43,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:43,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:33:43,733 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:43,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:43,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1278734291, now seen corresponding path program 1 times [2021-10-13 19:33:43,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:43,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325301050] [2021-10-13 19:33:43,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:43,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:43,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:43,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325301050] [2021-10-13 19:33:43,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325301050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:43,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309402350] [2021-10-13 19:33:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:43,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:43,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:43,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 19:33:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:44,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 19:33:44,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:44,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:33:44,239 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:44,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:33:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:44,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309402350] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:44,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:44,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 19:33:44,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311862447] [2021-10-13 19:33:44,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 19:33:44,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 19:33:44,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:33:44,277 INFO L87 Difference]: Start difference. First operand 2927 states and 11397 transitions. Second operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:44,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:44,676 INFO L93 Difference]: Finished difference Result 2931 states and 11399 transitions. [2021-10-13 19:33:44,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:44,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:33:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:44,694 INFO L225 Difference]: With dead ends: 2931 [2021-10-13 19:33:44,694 INFO L226 Difference]: Without dead ends: 2931 [2021-10-13 19:33:44,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.7ms TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:33:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-10-13 19:33:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2927. [2021-10-13 19:33:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2352 states have (on average 4.844812925170068) internal successors, (11395), 2926 states have internal predecessors, (11395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 11395 transitions. [2021-10-13 19:33:44,790 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 11395 transitions. Word has length 8 [2021-10-13 19:33:44,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:44,790 INFO L470 AbstractCegarLoop]: Abstraction has 2927 states and 11395 transitions. [2021-10-13 19:33:44,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 11395 transitions. [2021-10-13 19:33:44,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:33:44,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:44,791 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:44,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:45,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:45,005 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:45,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:45,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1278734288, now seen corresponding path program 1 times [2021-10-13 19:33:45,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:45,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244396529] [2021-10-13 19:33:45,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:45,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:45,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:45,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244396529] [2021-10-13 19:33:45,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244396529] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:45,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055394416] [2021-10-13 19:33:45,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:45,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:45,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:45,190 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:45,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 19:33:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:45,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 19:33:45,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:45,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:45,578 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:33:45,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:33:46,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:33:46,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:46,575 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:33:46,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:33:46,748 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:33:46,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:33:46,792 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:46,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:33:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:46,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055394416] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:46,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:46,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 19:33:46,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705243460] [2021-10-13 19:33:46,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:33:46,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:46,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:33:46,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:33:46,827 INFO L87 Difference]: Start difference. First operand 2927 states and 11395 transitions. Second operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:47,162 INFO L93 Difference]: Finished difference Result 2930 states and 11397 transitions. [2021-10-13 19:33:47,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:47,162 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:33:47,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:47,178 INFO L225 Difference]: With dead ends: 2930 [2021-10-13 19:33:47,179 INFO L226 Difference]: Without dead ends: 2930 [2021-10-13 19:33:47,179 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 238.5ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:33:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-10-13 19:33:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2927. [2021-10-13 19:33:47,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2352 states have (on average 4.844387755102041) internal successors, (11394), 2926 states have internal predecessors, (11394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 11394 transitions. [2021-10-13 19:33:47,302 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 11394 transitions. Word has length 8 [2021-10-13 19:33:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:47,302 INFO L470 AbstractCegarLoop]: Abstraction has 2927 states and 11394 transitions. [2021-10-13 19:33:47,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 11394 transitions. [2021-10-13 19:33:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:33:47,303 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:47,303 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:47,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:47,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-13 19:33:47,508 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:47,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:47,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1278734287, now seen corresponding path program 1 times [2021-10-13 19:33:47,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:47,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459770038] [2021-10-13 19:33:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:47,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:47,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:47,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459770038] [2021-10-13 19:33:47,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459770038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:47,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838444269] [2021-10-13 19:33:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:47,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:47,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:47,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:47,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 19:33:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:47,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 19:33:47,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:47,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:48,057 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:33:48,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:33:48,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:33:48,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:48,955 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:33:48,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:33:49,111 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:33:49,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:33:49,154 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:49,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:33:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:49,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838444269] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:49,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:49,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 19:33:49,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074288151] [2021-10-13 19:33:49,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:33:49,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:49,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:33:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:33:49,187 INFO L87 Difference]: Start difference. First operand 2927 states and 11394 transitions. Second operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:49,708 INFO L93 Difference]: Finished difference Result 2929 states and 11395 transitions. [2021-10-13 19:33:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:33:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:49,728 INFO L225 Difference]: With dead ends: 2929 [2021-10-13 19:33:49,729 INFO L226 Difference]: Without dead ends: 2929 [2021-10-13 19:33:49,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 260.4ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:33:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-10-13 19:33:49,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2927. [2021-10-13 19:33:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2352 states have (on average 4.843962585034014) internal successors, (11393), 2926 states have internal predecessors, (11393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:49,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 11393 transitions. [2021-10-13 19:33:49,845 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 11393 transitions. Word has length 8 [2021-10-13 19:33:49,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:49,846 INFO L470 AbstractCegarLoop]: Abstraction has 2927 states and 11393 transitions. [2021-10-13 19:33:49,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:49,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 11393 transitions. [2021-10-13 19:33:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:33:49,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:49,847 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:49,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:50,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-13 19:33:50,061 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:50,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1278734282, now seen corresponding path program 1 times [2021-10-13 19:33:50,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:50,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663598207] [2021-10-13 19:33:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:50,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:50,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:50,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663598207] [2021-10-13 19:33:50,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663598207] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:50,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764228660] [2021-10-13 19:33:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:50,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:50,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:50,204 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:50,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 19:33:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:50,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 19:33:50,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:50,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:33:50,551 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:50,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:33:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:50,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764228660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:50,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:50,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-13 19:33:50,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063174164] [2021-10-13 19:33:50,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:33:50,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:50,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:33:50,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:33:50,589 INFO L87 Difference]: Start difference. First operand 2927 states and 11393 transitions. Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:50,875 INFO L93 Difference]: Finished difference Result 2928 states and 11393 transitions. [2021-10-13 19:33:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:33:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:50,891 INFO L225 Difference]: With dead ends: 2928 [2021-10-13 19:33:50,891 INFO L226 Difference]: Without dead ends: 2928 [2021-10-13 19:33:50,892 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 115.4ms TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:33:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-10-13 19:33:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2927. [2021-10-13 19:33:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2352 states have (on average 4.843537414965986) internal successors, (11392), 2926 states have internal predecessors, (11392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 11392 transitions. [2021-10-13 19:33:50,982 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 11392 transitions. Word has length 8 [2021-10-13 19:33:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:50,983 INFO L470 AbstractCegarLoop]: Abstraction has 2927 states and 11392 transitions. [2021-10-13 19:33:50,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 11392 transitions. [2021-10-13 19:33:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:33:50,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:50,984 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:51,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:51,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:51,197 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:51,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:51,198 INFO L82 PathProgramCache]: Analyzing trace with hash -986051757, now seen corresponding path program 1 times [2021-10-13 19:33:51,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:51,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976144645] [2021-10-13 19:33:51,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:51,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:51,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:51,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:51,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976144645] [2021-10-13 19:33:51,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976144645] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:51,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418165270] [2021-10-13 19:33:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:51,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:51,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:51,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 19:33:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:51,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:33:51,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:51,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418165270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:51,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:51,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 19:33:51,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913192884] [2021-10-13 19:33:51,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 19:33:51,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:51,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 19:33:51,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:33:51,631 INFO L87 Difference]: Start difference. First operand 2927 states and 11392 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:52,080 INFO L93 Difference]: Finished difference Result 5589 states and 20069 transitions. [2021-10-13 19:33:52,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:33:52,081 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:33:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:52,108 INFO L225 Difference]: With dead ends: 5589 [2021-10-13 19:33:52,108 INFO L226 Difference]: Without dead ends: 5587 [2021-10-13 19:33:52,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 97.1ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:33:52,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5587 states. [2021-10-13 19:33:52,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5587 to 3659. [2021-10-13 19:33:52,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 3084 states have (on average 4.902723735408561) internal successors, (15120), 3658 states have internal predecessors, (15120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:52,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 15120 transitions. [2021-10-13 19:33:52,287 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 15120 transitions. Word has length 9 [2021-10-13 19:33:52,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:52,288 INFO L470 AbstractCegarLoop]: Abstraction has 3659 states and 15120 transitions. [2021-10-13 19:33:52,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:52,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 15120 transitions. [2021-10-13 19:33:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:33:52,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:52,289 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:52,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-13 19:33:52,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 19:33:52,505 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:52,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:52,506 INFO L82 PathProgramCache]: Analyzing trace with hash -986052717, now seen corresponding path program 1 times [2021-10-13 19:33:52,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:52,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133443184] [2021-10-13 19:33:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:52,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:52,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:52,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133443184] [2021-10-13 19:33:52,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133443184] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:52,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244280089] [2021-10-13 19:33:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:52,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:52,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:52,652 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:52,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 19:33:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:52,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 19:33:52,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:52,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:33:53,043 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:53,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:33:53,109 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:53,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:33:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:33:53,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244280089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:53,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:53,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:33:53,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126639465] [2021-10-13 19:33:53,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:33:53,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:33:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:33:53,134 INFO L87 Difference]: Start difference. First operand 3659 states and 15120 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:53,726 INFO L93 Difference]: Finished difference Result 3708 states and 15177 transitions. [2021-10-13 19:33:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:53,726 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:33:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:53,746 INFO L225 Difference]: With dead ends: 3708 [2021-10-13 19:33:53,746 INFO L226 Difference]: Without dead ends: 3708 [2021-10-13 19:33:53,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 279.4ms TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:33:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2021-10-13 19:33:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 3659. [2021-10-13 19:33:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 3084 states have (on average 4.891050583657588) internal successors, (15084), 3658 states have internal predecessors, (15084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 15084 transitions. [2021-10-13 19:33:54,003 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 15084 transitions. Word has length 9 [2021-10-13 19:33:54,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:54,004 INFO L470 AbstractCegarLoop]: Abstraction has 3659 states and 15084 transitions. [2021-10-13 19:33:54,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 15084 transitions. [2021-10-13 19:33:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:33:54,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:54,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:54,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:54,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:54,217 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:54,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:54,218 INFO L82 PathProgramCache]: Analyzing trace with hash -986052714, now seen corresponding path program 1 times [2021-10-13 19:33:54,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:54,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548049094] [2021-10-13 19:33:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:54,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:54,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:54,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548049094] [2021-10-13 19:33:54,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548049094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:54,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238024695] [2021-10-13 19:33:54,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:54,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:54,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:54,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 19:33:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:54,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 19:33:54,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:54,826 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:33:54,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:33:55,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:33:55,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:55,665 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:33:55,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:33:55,827 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:33:55,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:33:55,873 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:55,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:33:55,951 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:55,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:33:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:55,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238024695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:55,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:55,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:33:55,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635897220] [2021-10-13 19:33:55,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:33:55,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:55,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:33:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:33:55,966 INFO L87 Difference]: Start difference. First operand 3659 states and 15084 transitions. Second operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:56,485 INFO L93 Difference]: Finished difference Result 3696 states and 15130 transitions. [2021-10-13 19:33:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:56,485 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:33:56,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:56,503 INFO L225 Difference]: With dead ends: 3696 [2021-10-13 19:33:56,503 INFO L226 Difference]: Without dead ends: 3696 [2021-10-13 19:33:56,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 272.3ms TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:33:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2021-10-13 19:33:56,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3659. [2021-10-13 19:33:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 3084 states have (on average 4.883268482490273) internal successors, (15060), 3658 states have internal predecessors, (15060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 15060 transitions. [2021-10-13 19:33:56,673 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 15060 transitions. Word has length 9 [2021-10-13 19:33:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:33:56,673 INFO L470 AbstractCegarLoop]: Abstraction has 3659 states and 15060 transitions. [2021-10-13 19:33:56,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 15060 transitions. [2021-10-13 19:33:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:33:56,674 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:33:56,674 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:33:56,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 19:33:56,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 19:33:56,890 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:33:56,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:33:56,893 INFO L82 PathProgramCache]: Analyzing trace with hash -986052713, now seen corresponding path program 1 times [2021-10-13 19:33:56,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:33:56,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326742810] [2021-10-13 19:33:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:56,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:33:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:57,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:33:57,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326742810] [2021-10-13 19:33:57,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326742810] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:57,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975818060] [2021-10-13 19:33:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:33:57,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:33:57,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:33:57,071 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:33:57,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 19:33:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:33:57,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 19:33:57,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:33:57,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:57,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:57,508 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:33:57,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 105 [2021-10-13 19:33:58,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:33:58,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:33:59,027 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:33:59,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 73 treesize of output 129 [2021-10-13 19:33:59,194 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:33:59,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:33:59,242 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:33:59,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:33:59,300 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:33:59,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:33:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:33:59,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975818060] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:33:59,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:33:59,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-13 19:33:59,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997876540] [2021-10-13 19:33:59,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:33:59,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:33:59,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:33:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:33:59,313 INFO L87 Difference]: Start difference. First operand 3659 states and 15060 transitions. Second operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:33:59,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:33:59,928 INFO L93 Difference]: Finished difference Result 3684 states and 15083 transitions. [2021-10-13 19:33:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:33:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:33:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:33:59,951 INFO L225 Difference]: With dead ends: 3684 [2021-10-13 19:33:59,952 INFO L226 Difference]: Without dead ends: 3684 [2021-10-13 19:33:59,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 268.0ms TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:33:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2021-10-13 19:34:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3659. [2021-10-13 19:34:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 3084 states have (on average 4.875486381322958) internal successors, (15036), 3658 states have internal predecessors, (15036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:00,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 15036 transitions. [2021-10-13 19:34:00,075 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 15036 transitions. Word has length 9 [2021-10-13 19:34:00,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:00,076 INFO L470 AbstractCegarLoop]: Abstraction has 3659 states and 15036 transitions. [2021-10-13 19:34:00,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 15036 transitions. [2021-10-13 19:34:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:34:00,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:00,077 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:00,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:00,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 19:34:00,290 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:00,291 INFO L82 PathProgramCache]: Analyzing trace with hash -986052708, now seen corresponding path program 1 times [2021-10-13 19:34:00,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:00,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836245389] [2021-10-13 19:34:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:00,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:00,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:00,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836245389] [2021-10-13 19:34:00,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836245389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:00,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192299048] [2021-10-13 19:34:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:00,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:00,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:00,427 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:00,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 19:34:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:00,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 19:34:00,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:00,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:00,813 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:00,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:00,890 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:00,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:00,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192299048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:00,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:00,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:34:00,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947069542] [2021-10-13 19:34:00,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:34:00,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:34:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:34:00,915 INFO L87 Difference]: Start difference. First operand 3659 states and 15036 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:01,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:01,614 INFO L93 Difference]: Finished difference Result 3672 states and 15036 transitions. [2021-10-13 19:34:01,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:34:01,615 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:34:01,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:01,632 INFO L225 Difference]: With dead ends: 3672 [2021-10-13 19:34:01,632 INFO L226 Difference]: Without dead ends: 3672 [2021-10-13 19:34:01,632 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 308.8ms TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:34:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2021-10-13 19:34:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3659. [2021-10-13 19:34:01,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 3084 states have (on average 4.867704280155642) internal successors, (15012), 3658 states have internal predecessors, (15012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 15012 transitions. [2021-10-13 19:34:01,755 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 15012 transitions. Word has length 9 [2021-10-13 19:34:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:01,755 INFO L470 AbstractCegarLoop]: Abstraction has 3659 states and 15012 transitions. [2021-10-13 19:34:01,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 15012 transitions. [2021-10-13 19:34:01,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:34:01,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:01,759 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:01,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:01,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-13 19:34:01,973 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:01,974 INFO L82 PathProgramCache]: Analyzing trace with hash -494890836, now seen corresponding path program 1 times [2021-10-13 19:34:01,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:01,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157107232] [2021-10-13 19:34:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:01,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:02,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:02,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157107232] [2021-10-13 19:34:02,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157107232] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:02,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45234297] [2021-10-13 19:34:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:02,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:02,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:02,076 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:02,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 19:34:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:02,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:34:02,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:02,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45234297] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:02,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:02,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 19:34:02,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731278787] [2021-10-13 19:34:02,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 19:34:02,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:02,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 19:34:02,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:34:02,502 INFO L87 Difference]: Start difference. First operand 3659 states and 15012 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:02,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:02,820 INFO L93 Difference]: Finished difference Result 3525 states and 13141 transitions. [2021-10-13 19:34:02,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:34:02,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:34:02,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:02,835 INFO L225 Difference]: With dead ends: 3525 [2021-10-13 19:34:02,835 INFO L226 Difference]: Without dead ends: 3513 [2021-10-13 19:34:02,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 94.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:02,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2021-10-13 19:34:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 3373. [2021-10-13 19:34:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2798 states have (on average 4.602573266619014) internal successors, (12878), 3372 states have internal predecessors, (12878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:02,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 12878 transitions. [2021-10-13 19:34:02,941 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 12878 transitions. Word has length 10 [2021-10-13 19:34:02,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:02,942 INFO L470 AbstractCegarLoop]: Abstraction has 3373 states and 12878 transitions. [2021-10-13 19:34:02,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 12878 transitions. [2021-10-13 19:34:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:02,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:02,943 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:02,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:03,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 19:34:03,156 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:03,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:03,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1591072991, now seen corresponding path program 1 times [2021-10-13 19:34:03,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:03,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206811706] [2021-10-13 19:34:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:03,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:03,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:03,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:03,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206811706] [2021-10-13 19:34:03,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206811706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:03,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901193401] [2021-10-13 19:34:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:03,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:03,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:03,343 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:03,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 19:34:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:03,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:34:03,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:03,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:34:03,823 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:03,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:03,921 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:03,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:03,977 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:03,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:04,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901193401] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:04,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:04,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-10-13 19:34:04,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114377664] [2021-10-13 19:34:04,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 19:34:04,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 19:34:04,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:34:04,002 INFO L87 Difference]: Start difference. First operand 3373 states and 12878 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:04,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:04,443 INFO L93 Difference]: Finished difference Result 4580 states and 15454 transitions. [2021-10-13 19:34:04,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:34:04,444 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:04,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:04,464 INFO L225 Difference]: With dead ends: 4580 [2021-10-13 19:34:04,464 INFO L226 Difference]: Without dead ends: 4580 [2021-10-13 19:34:04,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 265.5ms TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:34:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2021-10-13 19:34:04,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 3331. [2021-10-13 19:34:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 2756 states have (on average 4.444484760522497) internal successors, (12249), 3330 states have internal predecessors, (12249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:04,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 12249 transitions. [2021-10-13 19:34:04,575 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 12249 transitions. Word has length 11 [2021-10-13 19:34:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:04,576 INFO L470 AbstractCegarLoop]: Abstraction has 3331 states and 12249 transitions. [2021-10-13 19:34:04,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 12249 transitions. [2021-10-13 19:34:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:04,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:04,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:04,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:04,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:04,791 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:04,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:04,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1591072994, now seen corresponding path program 1 times [2021-10-13 19:34:04,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:04,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551026448] [2021-10-13 19:34:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:04,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:05,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:05,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551026448] [2021-10-13 19:34:05,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551026448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:05,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863113701] [2021-10-13 19:34:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:05,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:05,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:05,045 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:05,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 19:34:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:05,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 19:34:05,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:05,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:05,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:05,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:05,572 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:34:05,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:34:05,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:34:06,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:06,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:06,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:06,291 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:34:06,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:34:06,485 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:34:06,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:34:06,537 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:06,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:06,633 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:06,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:06,698 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:06,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:06,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863113701] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:06,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:06,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:34:06,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3616354] [2021-10-13 19:34:06,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:34:06,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:34:06,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:34:06,715 INFO L87 Difference]: Start difference. First operand 3331 states and 12249 transitions. Second operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:07,197 INFO L93 Difference]: Finished difference Result 4307 states and 14484 transitions. [2021-10-13 19:34:07,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:34:07,198 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:07,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:07,211 INFO L225 Difference]: With dead ends: 4307 [2021-10-13 19:34:07,211 INFO L226 Difference]: Without dead ends: 4307 [2021-10-13 19:34:07,212 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 367.2ms TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:34:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2021-10-13 19:34:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 3289. [2021-10-13 19:34:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 2714 states have (on average 4.366617538688283) internal successors, (11851), 3288 states have internal predecessors, (11851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 11851 transitions. [2021-10-13 19:34:07,303 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 11851 transitions. Word has length 11 [2021-10-13 19:34:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:07,303 INFO L470 AbstractCegarLoop]: Abstraction has 3289 states and 11851 transitions. [2021-10-13 19:34:07,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 11851 transitions. [2021-10-13 19:34:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:07,304 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:07,304 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:07,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:07,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:07,518 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:07,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:07,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1591072995, now seen corresponding path program 1 times [2021-10-13 19:34:07,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:07,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418766827] [2021-10-13 19:34:07,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:07,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:07,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:07,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418766827] [2021-10-13 19:34:07,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418766827] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:07,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602974566] [2021-10-13 19:34:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:07,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:07,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:07,771 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:07,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-13 19:34:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:08,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 19:34:08,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:08,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:08,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:08,270 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:34:08,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:34:08,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:09,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:09,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:09,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:09,137 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:34:09,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:34:09,310 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:34:09,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:34:09,371 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:09,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:09,476 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:09,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:09,535 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:09,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:09,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602974566] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:09,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:09,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:34:09,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750312879] [2021-10-13 19:34:09,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:34:09,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:34:09,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:34:09,552 INFO L87 Difference]: Start difference. First operand 3289 states and 11851 transitions. Second operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:10,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:10,265 INFO L93 Difference]: Finished difference Result 4034 states and 13514 transitions. [2021-10-13 19:34:10,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:34:10,266 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:10,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:10,276 INFO L225 Difference]: With dead ends: 4034 [2021-10-13 19:34:10,276 INFO L226 Difference]: Without dead ends: 4034 [2021-10-13 19:34:10,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 561.4ms TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:34:10,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2021-10-13 19:34:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3247. [2021-10-13 19:34:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 2672 states have (on average 4.286302395209581) internal successors, (11453), 3246 states have internal predecessors, (11453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 11453 transitions. [2021-10-13 19:34:10,338 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 11453 transitions. Word has length 11 [2021-10-13 19:34:10,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:10,338 INFO L470 AbstractCegarLoop]: Abstraction has 3247 states and 11453 transitions. [2021-10-13 19:34:10,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 11453 transitions. [2021-10-13 19:34:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:10,339 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:10,339 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:10,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:10,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:10,543 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:10,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1591073000, now seen corresponding path program 1 times [2021-10-13 19:34:10,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:10,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602030515] [2021-10-13 19:34:10,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:10,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:10,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:10,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602030515] [2021-10-13 19:34:10,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602030515] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:10,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773629341] [2021-10-13 19:34:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:10,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:10,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:10,742 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:10,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-13 19:34:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:11,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:34:11,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:11,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:11,217 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:11,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:11,304 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:11,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:11,365 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:11,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:11,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773629341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:11,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:11,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:34:11,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271034613] [2021-10-13 19:34:11,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:11,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:11,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:11,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:11,391 INFO L87 Difference]: Start difference. First operand 3247 states and 11453 transitions. Second operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:11,951 INFO L93 Difference]: Finished difference Result 3761 states and 12544 transitions. [2021-10-13 19:34:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:34:11,952 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:11,961 INFO L225 Difference]: With dead ends: 3761 [2021-10-13 19:34:11,961 INFO L226 Difference]: Without dead ends: 3749 [2021-10-13 19:34:11,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 297.6ms TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:34:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2021-10-13 19:34:12,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3193. [2021-10-13 19:34:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 2618 states have (on average 4.210466004583652) internal successors, (11023), 3192 states have internal predecessors, (11023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 11023 transitions. [2021-10-13 19:34:12,085 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 11023 transitions. Word has length 11 [2021-10-13 19:34:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:12,085 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 11023 transitions. [2021-10-13 19:34:12,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:12,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 11023 transitions. [2021-10-13 19:34:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:12,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:12,087 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:12,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:12,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-13 19:34:12,300 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:12,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:12,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1587441662, now seen corresponding path program 2 times [2021-10-13 19:34:12,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:12,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013220257] [2021-10-13 19:34:12,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:12,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:34:12,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:12,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013220257] [2021-10-13 19:34:12,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013220257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:12,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498906742] [2021-10-13 19:34:12,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:34:12,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:12,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:12,475 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:12,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-13 19:34:12,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:34:12,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:34:12,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 19:34:12,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:34:14,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498906742] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:14,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:14,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2021-10-13 19:34:14,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242238524] [2021-10-13 19:34:14,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:34:14,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:14,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:34:14,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:34:14,142 INFO L87 Difference]: Start difference. First operand 3193 states and 11023 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:30,833 INFO L93 Difference]: Finished difference Result 5416 states and 18220 transitions. [2021-10-13 19:34:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:34:30,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:30,854 INFO L225 Difference]: With dead ends: 5416 [2021-10-13 19:34:30,854 INFO L226 Difference]: Without dead ends: 5416 [2021-10-13 19:34:30,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 105.4ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:34:30,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2021-10-13 19:34:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 3193. [2021-10-13 19:34:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 2690 states have (on average 4.641263940520446) internal successors, (12485), 3192 states have internal predecessors, (12485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:30,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 12485 transitions. [2021-10-13 19:34:30,941 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 12485 transitions. Word has length 11 [2021-10-13 19:34:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:30,941 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 12485 transitions. [2021-10-13 19:34:30,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:30,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 12485 transitions. [2021-10-13 19:34:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:30,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:30,942 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:30,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:31,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:31,155 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:31,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1587441661, now seen corresponding path program 1 times [2021-10-13 19:34:31,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:31,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323607821] [2021-10-13 19:34:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:31,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:31,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:31,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323607821] [2021-10-13 19:34:31,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323607821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:31,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450213716] [2021-10-13 19:34:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:31,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:31,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:31,497 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:31,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-13 19:34:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:31,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:34:31,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:31,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:32,030 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:32,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:34:32,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450213716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:32,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:32,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-13 19:34:32,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416900361] [2021-10-13 19:34:32,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:32,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:32,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:32,076 INFO L87 Difference]: Start difference. First operand 3193 states and 12485 transitions. Second operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:32,879 INFO L93 Difference]: Finished difference Result 6181 states and 24225 transitions. [2021-10-13 19:34:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:34:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:32,909 INFO L225 Difference]: With dead ends: 6181 [2021-10-13 19:34:32,909 INFO L226 Difference]: Without dead ends: 6181 [2021-10-13 19:34:32,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 397.0ms TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:34:32,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2021-10-13 19:34:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 3193. [2021-10-13 19:34:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 2690 states have (on average 4.640520446096654) internal successors, (12483), 3192 states have internal predecessors, (12483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 12483 transitions. [2021-10-13 19:34:33,030 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 12483 transitions. Word has length 11 [2021-10-13 19:34:33,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:33,030 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 12483 transitions. [2021-10-13 19:34:33,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:33,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 12483 transitions. [2021-10-13 19:34:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:33,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:33,032 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:33,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:33,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-13 19:34:33,242 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:33,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1587441658, now seen corresponding path program 1 times [2021-10-13 19:34:33,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:33,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721206331] [2021-10-13 19:34:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:33,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:33,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:33,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721206331] [2021-10-13 19:34:33,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721206331] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:33,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713240422] [2021-10-13 19:34:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:33,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:33,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:33,586 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:33,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-13 19:34:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:34,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 19:34:34,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:34,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:34,194 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:34:34,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:34:35,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:35,622 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:34:35,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:34:35,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:34:35,829 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:34:35,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:34:35,870 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:35,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:35,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713240422] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:35,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:35,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:34:35,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304427398] [2021-10-13 19:34:35,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:35,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:35,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:35,910 INFO L87 Difference]: Start difference. First operand 3193 states and 12483 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:36,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:36,671 INFO L93 Difference]: Finished difference Result 3259 states and 12597 transitions. [2021-10-13 19:34:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:34:36,671 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:36,687 INFO L225 Difference]: With dead ends: 3259 [2021-10-13 19:34:36,687 INFO L226 Difference]: Without dead ends: 3259 [2021-10-13 19:34:36,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 400.7ms TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:34:36,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2021-10-13 19:34:36,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3193. [2021-10-13 19:34:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 2690 states have (on average 4.640148698884758) internal successors, (12482), 3192 states have internal predecessors, (12482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 12482 transitions. [2021-10-13 19:34:36,774 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 12482 transitions. Word has length 11 [2021-10-13 19:34:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:36,774 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 12482 transitions. [2021-10-13 19:34:36,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 12482 transitions. [2021-10-13 19:34:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:36,775 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:36,775 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:36,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:36,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-13 19:34:36,989 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:36,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1587441657, now seen corresponding path program 1 times [2021-10-13 19:34:36,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:36,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938667567] [2021-10-13 19:34:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:36,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:37,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:37,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938667567] [2021-10-13 19:34:37,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938667567] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:37,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464117852] [2021-10-13 19:34:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:37,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:37,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:37,328 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:37,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-13 19:34:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:37,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 19:34:37,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:37,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:37,884 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:34:37,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:34:38,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:34:39,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:39,180 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:34:39,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:34:39,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:34:39,373 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:34:39,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:34:39,415 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:39,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:34:39,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464117852] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:39,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:39,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:34:39,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262559790] [2021-10-13 19:34:39,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:39,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:39,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:39,460 INFO L87 Difference]: Start difference. First operand 3193 states and 12482 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:40,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:40,275 INFO L93 Difference]: Finished difference Result 3258 states and 12595 transitions. [2021-10-13 19:34:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:34:40,276 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:40,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:40,291 INFO L225 Difference]: With dead ends: 3258 [2021-10-13 19:34:40,291 INFO L226 Difference]: Without dead ends: 3258 [2021-10-13 19:34:40,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 482.1ms TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:34:40,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2021-10-13 19:34:40,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 3193. [2021-10-13 19:34:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 2690 states have (on average 4.639776951672863) internal successors, (12481), 3192 states have internal predecessors, (12481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 12481 transitions. [2021-10-13 19:34:40,389 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 12481 transitions. Word has length 11 [2021-10-13 19:34:40,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:40,389 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 12481 transitions. [2021-10-13 19:34:40,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 12481 transitions. [2021-10-13 19:34:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:34:40,390 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:40,390 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:40,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:40,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-13 19:34:40,603 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1587441652, now seen corresponding path program 1 times [2021-10-13 19:34:40,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:40,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045180246] [2021-10-13 19:34:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:40,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:40,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:40,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045180246] [2021-10-13 19:34:40,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045180246] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:40,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874475779] [2021-10-13 19:34:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:40,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:40,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:40,882 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:40,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-13 19:34:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:41,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:34:41,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:41,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:34:41,455 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:41,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:34:41,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874475779] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:41,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:41,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-13 19:34:41,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562947459] [2021-10-13 19:34:41,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:41,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:41,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:41,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:41,497 INFO L87 Difference]: Start difference. First operand 3193 states and 12481 transitions. Second operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:42,385 INFO L93 Difference]: Finished difference Result 6175 states and 24213 transitions. [2021-10-13 19:34:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:34:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:34:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:42,415 INFO L225 Difference]: With dead ends: 6175 [2021-10-13 19:34:42,415 INFO L226 Difference]: Without dead ends: 6175 [2021-10-13 19:34:42,416 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 443.2ms TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:34:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2021-10-13 19:34:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 3193. [2021-10-13 19:34:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 2690 states have (on average 4.639405204460966) internal successors, (12480), 3192 states have internal predecessors, (12480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 12480 transitions. [2021-10-13 19:34:42,493 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 12480 transitions. Word has length 11 [2021-10-13 19:34:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:42,493 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 12480 transitions. [2021-10-13 19:34:42,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 12480 transitions. [2021-10-13 19:34:42,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:34:42,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:42,494 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:42,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:42,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-13 19:34:42,695 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:42,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:42,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1159100211, now seen corresponding path program 1 times [2021-10-13 19:34:42,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:42,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684116] [2021-10-13 19:34:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:42,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:42,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:42,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684116] [2021-10-13 19:34:42,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684116] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:42,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471985928] [2021-10-13 19:34:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:42,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:42,955 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:42,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 19:34:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:43,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:34:43,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:43,563 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:34:43,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 108 [2021-10-13 19:34:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:45,905 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:34:45,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:34:46,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:34:46,220 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:46,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:46,304 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:46,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:46,370 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:46,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:34:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:46,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471985928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:46,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:46,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-13 19:34:46,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371959553] [2021-10-13 19:34:46,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 19:34:46,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:46,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 19:34:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:34:46,450 INFO L87 Difference]: Start difference. First operand 3193 states and 12480 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:47,974 INFO L93 Difference]: Finished difference Result 3482 states and 13489 transitions. [2021-10-13 19:34:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:34:47,975 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:34:47,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:47,987 INFO L225 Difference]: With dead ends: 3482 [2021-10-13 19:34:47,987 INFO L226 Difference]: Without dead ends: 3482 [2021-10-13 19:34:47,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1185.7ms TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:34:47,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2021-10-13 19:34:48,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3290. [2021-10-13 19:34:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 2787 states have (on average 4.63329745245784) internal successors, (12913), 3289 states have internal predecessors, (12913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 12913 transitions. [2021-10-13 19:34:48,064 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 12913 transitions. Word has length 12 [2021-10-13 19:34:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:48,065 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 12913 transitions. [2021-10-13 19:34:48,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 12913 transitions. [2021-10-13 19:34:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:34:48,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:48,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:48,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-13 19:34:48,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-13 19:34:48,268 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:48,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:48,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1159100212, now seen corresponding path program 1 times [2021-10-13 19:34:48,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:48,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757356165] [2021-10-13 19:34:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:34:48,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:48,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757356165] [2021-10-13 19:34:48,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757356165] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:34:48,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:34:48,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:34:48,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135006397] [2021-10-13 19:34:48,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:34:48,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:34:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:48,384 INFO L87 Difference]: Start difference. First operand 3290 states and 12913 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:48,465 INFO L93 Difference]: Finished difference Result 4744 states and 19249 transitions. [2021-10-13 19:34:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:34:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:34:48,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:48,484 INFO L225 Difference]: With dead ends: 4744 [2021-10-13 19:34:48,484 INFO L226 Difference]: Without dead ends: 4744 [2021-10-13 19:34:48,484 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:34:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2021-10-13 19:34:48,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 4036. [2021-10-13 19:34:48,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3533 states have (on average 5.035097650721767) internal successors, (17789), 4035 states have internal predecessors, (17789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 17789 transitions. [2021-10-13 19:34:48,582 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 17789 transitions. Word has length 12 [2021-10-13 19:34:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:48,583 INFO L470 AbstractCegarLoop]: Abstraction has 4036 states and 17789 transitions. [2021-10-13 19:34:48,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 17789 transitions. [2021-10-13 19:34:48,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:34:48,584 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:48,584 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:48,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-13 19:34:48,584 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:48,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:48,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1159100213, now seen corresponding path program 1 times [2021-10-13 19:34:48,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:48,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103685284] [2021-10-13 19:34:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:48,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:48,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103685284] [2021-10-13 19:34:48,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103685284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:48,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840825817] [2021-10-13 19:34:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:48,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:48,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:48,833 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:48,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 19:34:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:49,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:34:49,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:49,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:49,576 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:49,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:49,656 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:49,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:49,722 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:49,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:49,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840825817] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:49,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:49,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-13 19:34:49,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855325101] [2021-10-13 19:34:49,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 19:34:49,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:49,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 19:34:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:34:49,800 INFO L87 Difference]: Start difference. First operand 4036 states and 17789 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:50,582 INFO L93 Difference]: Finished difference Result 4164 states and 17981 transitions. [2021-10-13 19:34:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:34:50,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:34:50,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:50,602 INFO L225 Difference]: With dead ends: 4164 [2021-10-13 19:34:50,602 INFO L226 Difference]: Without dead ends: 4164 [2021-10-13 19:34:50,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 608.3ms TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:34:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-10-13 19:34:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 4036. [2021-10-13 19:34:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3533 states have (on average 5.01698273422021) internal successors, (17725), 4035 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:50,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 17725 transitions. [2021-10-13 19:34:50,719 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 17725 transitions. Word has length 12 [2021-10-13 19:34:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:50,719 INFO L470 AbstractCegarLoop]: Abstraction has 4036 states and 17725 transitions. [2021-10-13 19:34:50,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:50,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 17725 transitions. [2021-10-13 19:34:50,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:34:50,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:50,721 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:50,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:50,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:50,922 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:50,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1159100218, now seen corresponding path program 1 times [2021-10-13 19:34:50,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:50,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349614829] [2021-10-13 19:34:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:50,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:51,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:51,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349614829] [2021-10-13 19:34:51,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349614829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:51,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710532605] [2021-10-13 19:34:51,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:51,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:51,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:51,206 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:51,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-13 19:34:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:51,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:34:51,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:51,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:51,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:51,871 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:34:51,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 113 [2021-10-13 19:34:52,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:34:52,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:52,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:53,037 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:34:53,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 68 treesize of output 124 [2021-10-13 19:34:53,267 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:53,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:34:53,365 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:53,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:53,454 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:53,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:34:53,525 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:53,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:34:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:53,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710532605] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:53,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:53,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-13 19:34:53,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607698786] [2021-10-13 19:34:53,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 19:34:53,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 19:34:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:34:53,640 INFO L87 Difference]: Start difference. First operand 4036 states and 17725 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:54,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:54,595 INFO L93 Difference]: Finished difference Result 4132 states and 17853 transitions. [2021-10-13 19:34:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:34:54,596 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:34:54,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:54,609 INFO L225 Difference]: With dead ends: 4132 [2021-10-13 19:34:54,609 INFO L226 Difference]: Without dead ends: 4132 [2021-10-13 19:34:54,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 779.8ms TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:34:54,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4132 states. [2021-10-13 19:34:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4132 to 4036. [2021-10-13 19:34:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3533 states have (on average 4.9988678177186525) internal successors, (17661), 4035 states have internal predecessors, (17661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 17661 transitions. [2021-10-13 19:34:54,711 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 17661 transitions. Word has length 12 [2021-10-13 19:34:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:54,711 INFO L470 AbstractCegarLoop]: Abstraction has 4036 states and 17661 transitions. [2021-10-13 19:34:54,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 17661 transitions. [2021-10-13 19:34:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:34:54,712 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:54,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:54,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-13 19:34:54,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-10-13 19:34:54,918 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:54,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1159100219, now seen corresponding path program 1 times [2021-10-13 19:34:54,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:54,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870919452] [2021-10-13 19:34:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:54,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:55,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:55,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870919452] [2021-10-13 19:34:55,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870919452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:55,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348536452] [2021-10-13 19:34:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:55,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:55,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:55,178 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:55,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 19:34:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:55,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-13 19:34:55,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:55,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:55,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:55,934 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:34:55,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 271 treesize of output 285 [2021-10-13 19:34:56,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:34:56,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:34:57,026 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:34:57,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 68 treesize of output 124 [2021-10-13 19:34:57,216 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:57,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:34:57,288 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:57,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:34:57,348 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:57,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:34:57,394 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:34:57,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:34:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:34:57,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348536452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:57,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:57,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:34:57,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642702168] [2021-10-13 19:34:57,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:57,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:57,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:57,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:57,452 INFO L87 Difference]: Start difference. First operand 4036 states and 17661 transitions. Second operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:58,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:34:58,282 INFO L93 Difference]: Finished difference Result 4132 states and 17821 transitions. [2021-10-13 19:34:58,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:34:58,283 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:34:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:34:58,304 INFO L225 Difference]: With dead ends: 4132 [2021-10-13 19:34:58,305 INFO L226 Difference]: Without dead ends: 4132 [2021-10-13 19:34:58,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 554.8ms TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:34:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4132 states. [2021-10-13 19:34:58,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4132 to 4036. [2021-10-13 19:34:58,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3533 states have (on average 4.989810359467874) internal successors, (17629), 4035 states have internal predecessors, (17629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 17629 transitions. [2021-10-13 19:34:58,443 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 17629 transitions. Word has length 12 [2021-10-13 19:34:58,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:34:58,443 INFO L470 AbstractCegarLoop]: Abstraction has 4036 states and 17629 transitions. [2021-10-13 19:34:58,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:34:58,444 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 17629 transitions. [2021-10-13 19:34:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:34:58,444 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:34:58,445 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:34:58,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-13 19:34:58,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-13 19:34:58,658 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:34:58,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:34:58,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1966045634, now seen corresponding path program 2 times [2021-10-13 19:34:58,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:34:58,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738093263] [2021-10-13 19:34:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:34:58,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:34:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:34:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:34:58,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:34:58,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738093263] [2021-10-13 19:34:58,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738093263] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:58,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717878282] [2021-10-13 19:34:58,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:34:58,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:34:58,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:34:58,763 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:34:58,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 19:34:59,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:34:59,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:34:59,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 19:34:59,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:34:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:34:59,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717878282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:34:59,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:34:59,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:34:59,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017700016] [2021-10-13 19:34:59,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:34:59,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:34:59,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:34:59,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:34:59,497 INFO L87 Difference]: Start difference. First operand 4036 states and 17629 transitions. Second operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:00,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:00,612 INFO L93 Difference]: Finished difference Result 13848 states and 57323 transitions. [2021-10-13 19:35:00,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:35:00,612 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:00,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:00,667 INFO L225 Difference]: With dead ends: 13848 [2021-10-13 19:35:00,667 INFO L226 Difference]: Without dead ends: 13844 [2021-10-13 19:35:00,668 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 301.9ms TimeCoverageRelationStatistics Valid=264, Invalid=792, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:35:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13844 states. [2021-10-13 19:35:00,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13844 to 5527. [2021-10-13 19:35:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5024 states have (on average 5.390326433121019) internal successors, (27081), 5526 states have internal predecessors, (27081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 27081 transitions. [2021-10-13 19:35:00,879 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 27081 transitions. Word has length 12 [2021-10-13 19:35:00,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:00,879 INFO L470 AbstractCegarLoop]: Abstraction has 5527 states and 27081 transitions. [2021-10-13 19:35:00,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 27081 transitions. [2021-10-13 19:35:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:00,880 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:00,880 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:00,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:01,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:01,087 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:01,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1966046595, now seen corresponding path program 1 times [2021-10-13 19:35:01,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:01,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410063564] [2021-10-13 19:35:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:01,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:01,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:01,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410063564] [2021-10-13 19:35:01,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410063564] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:01,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487204225] [2021-10-13 19:35:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:01,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:01,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:01,413 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:01,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 19:35:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:02,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:35:02,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:02,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:35:02,192 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:02,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:02,345 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:02,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:02,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487204225] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:02,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:02,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2021-10-13 19:35:02,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068175535] [2021-10-13 19:35:02,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:35:02,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:35:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:35:02,365 INFO L87 Difference]: Start difference. First operand 5527 states and 27081 transitions. Second operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:03,878 INFO L93 Difference]: Finished difference Result 9359 states and 43352 transitions. [2021-10-13 19:35:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:35:03,879 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:03,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:03,916 INFO L225 Difference]: With dead ends: 9359 [2021-10-13 19:35:03,916 INFO L226 Difference]: Without dead ends: 9359 [2021-10-13 19:35:03,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 644.9ms TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:35:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9359 states. [2021-10-13 19:35:04,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9359 to 5545. [2021-10-13 19:35:04,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5545 states, 5042 states have (on average 5.385561285204284) internal successors, (27154), 5544 states have internal predecessors, (27154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5545 states to 5545 states and 27154 transitions. [2021-10-13 19:35:04,075 INFO L78 Accepts]: Start accepts. Automaton has 5545 states and 27154 transitions. Word has length 12 [2021-10-13 19:35:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:04,075 INFO L470 AbstractCegarLoop]: Abstraction has 5545 states and 27154 transitions. [2021-10-13 19:35:04,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:04,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5545 states and 27154 transitions. [2021-10-13 19:35:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:04,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:04,077 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:04,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-13 19:35:04,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-13 19:35:04,290 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:04,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:04,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1966046592, now seen corresponding path program 1 times [2021-10-13 19:35:04,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:04,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899068269] [2021-10-13 19:35:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:04,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:04,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:04,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899068269] [2021-10-13 19:35:04,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899068269] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:04,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958833999] [2021-10-13 19:35:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:04,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:04,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:04,750 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:04,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 19:35:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:05,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:35:05,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:05,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:05,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:05,435 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:35:05,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:35:06,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:35:06,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:06,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:06,647 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:35:06,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:35:06,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:35:06,914 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:35:06,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:35:06,964 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:06,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:07,109 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:07,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:07,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958833999] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:07,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:07,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:35:07,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440722230] [2021-10-13 19:35:07,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:35:07,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:07,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:35:07,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:35:07,128 INFO L87 Difference]: Start difference. First operand 5545 states and 27154 transitions. Second operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:08,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:08,547 INFO L93 Difference]: Finished difference Result 5933 states and 28139 transitions. [2021-10-13 19:35:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:35:08,548 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:08,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:08,569 INFO L225 Difference]: With dead ends: 5933 [2021-10-13 19:35:08,569 INFO L226 Difference]: Without dead ends: 5933 [2021-10-13 19:35:08,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 813.4ms TimeCoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:35:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5933 states. [2021-10-13 19:35:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5933 to 5545. [2021-10-13 19:35:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5545 states, 5042 states have (on average 5.3712812376041255) internal successors, (27082), 5544 states have internal predecessors, (27082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5545 states to 5545 states and 27082 transitions. [2021-10-13 19:35:08,696 INFO L78 Accepts]: Start accepts. Automaton has 5545 states and 27082 transitions. Word has length 12 [2021-10-13 19:35:08,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:08,697 INFO L470 AbstractCegarLoop]: Abstraction has 5545 states and 27082 transitions. [2021-10-13 19:35:08,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5545 states and 27082 transitions. [2021-10-13 19:35:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:08,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:08,697 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:08,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:08,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:08,898 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:08,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1966046591, now seen corresponding path program 1 times [2021-10-13 19:35:08,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:08,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361297022] [2021-10-13 19:35:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:08,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:09,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:09,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361297022] [2021-10-13 19:35:09,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361297022] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:09,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350069620] [2021-10-13 19:35:09,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:09,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:09,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:09,243 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:09,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-13 19:35:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:09,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:35:09,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:09,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:09,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:09,954 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:35:09,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:35:10,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:35:11,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:11,147 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:35:11,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:35:11,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:35:11,343 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:35:11,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:35:11,401 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:35:11,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:35:11,557 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:35:11,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:35:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:11,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350069620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:11,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:11,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:35:11,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301570509] [2021-10-13 19:35:11,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:35:11,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:11,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:35:11,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:35:11,579 INFO L87 Difference]: Start difference. First operand 5545 states and 27082 transitions. Second operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:12,884 INFO L93 Difference]: Finished difference Result 5708 states and 27373 transitions. [2021-10-13 19:35:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:35:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:12,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:12,906 INFO L225 Difference]: With dead ends: 5708 [2021-10-13 19:35:12,906 INFO L226 Difference]: Without dead ends: 5708 [2021-10-13 19:35:12,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 839.6ms TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:35:12,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5708 states. [2021-10-13 19:35:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5708 to 5545. [2021-10-13 19:35:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5545 states, 5042 states have (on average 5.357001190003967) internal successors, (27010), 5544 states have internal predecessors, (27010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5545 states to 5545 states and 27010 transitions. [2021-10-13 19:35:13,030 INFO L78 Accepts]: Start accepts. Automaton has 5545 states and 27010 transitions. Word has length 12 [2021-10-13 19:35:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:13,031 INFO L470 AbstractCegarLoop]: Abstraction has 5545 states and 27010 transitions. [2021-10-13 19:35:13,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:13,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5545 states and 27010 transitions. [2021-10-13 19:35:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:13,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:13,031 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:13,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-10-13 19:35:13,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:13,232 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:13,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1966046589, now seen corresponding path program 1 times [2021-10-13 19:35:13,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:13,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580516152] [2021-10-13 19:35:13,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:13,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:35:13,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:13,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580516152] [2021-10-13 19:35:13,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580516152] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:13,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007750132] [2021-10-13 19:35:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:13,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:13,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:13,339 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:13,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-13 19:35:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:13,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 19:35:13,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:14,352 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 19:35:14,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 264 treesize of output 196 [2021-10-13 19:35:14,563 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-10-13 19:35:14,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 284 treesize of output 180 [2021-10-13 19:35:14,611 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-10-13 19:35:14,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 274 treesize of output 178 [2021-10-13 19:35:14,660 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:35:14,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007750132] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:35:14,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:35:14,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2021-10-13 19:35:14,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240562686] [2021-10-13 19:35:14,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:35:14,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:14,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:35:14,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:35:14,662 INFO L87 Difference]: Start difference. First operand 5545 states and 27010 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:14,726 INFO L93 Difference]: Finished difference Result 5243 states and 25508 transitions. [2021-10-13 19:35:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:35:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:14,747 INFO L225 Difference]: With dead ends: 5243 [2021-10-13 19:35:14,748 INFO L226 Difference]: Without dead ends: 5243 [2021-10-13 19:35:14,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:35:14,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2021-10-13 19:35:14,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 4641. [2021-10-13 19:35:14,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4210 states have (on average 4.742755344418052) internal successors, (19967), 4640 states have internal predecessors, (19967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 19967 transitions. [2021-10-13 19:35:14,848 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 19967 transitions. Word has length 12 [2021-10-13 19:35:14,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:14,848 INFO L470 AbstractCegarLoop]: Abstraction has 4641 states and 19967 transitions. [2021-10-13 19:35:14,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:14,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 19967 transitions. [2021-10-13 19:35:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:14,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:14,849 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:14,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:15,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-13 19:35:15,049 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:15,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1966046586, now seen corresponding path program 1 times [2021-10-13 19:35:15,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:15,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945566257] [2021-10-13 19:35:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:15,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:15,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:15,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945566257] [2021-10-13 19:35:15,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945566257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:15,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136048910] [2021-10-13 19:35:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:15,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:15,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:15,366 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:15,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-13 19:35:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:16,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:35:16,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:16,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:35:16,214 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:16,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:16,354 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:16,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:16,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136048910] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:16,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:16,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2021-10-13 19:35:16,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090226898] [2021-10-13 19:35:16,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:35:16,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:16,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:35:16,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:35:16,373 INFO L87 Difference]: Start difference. First operand 4641 states and 19967 transitions. Second operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:17,705 INFO L93 Difference]: Finished difference Result 7727 states and 31971 transitions. [2021-10-13 19:35:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:35:17,705 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:17,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:17,732 INFO L225 Difference]: With dead ends: 7727 [2021-10-13 19:35:17,732 INFO L226 Difference]: Without dead ends: 7727 [2021-10-13 19:35:17,732 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 702.2ms TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:35:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7727 states. [2021-10-13 19:35:17,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7727 to 4641. [2021-10-13 19:35:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4210 states have (on average 4.734204275534442) internal successors, (19931), 4640 states have internal predecessors, (19931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 19931 transitions. [2021-10-13 19:35:17,850 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 19931 transitions. Word has length 12 [2021-10-13 19:35:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:17,850 INFO L470 AbstractCegarLoop]: Abstraction has 4641 states and 19931 transitions. [2021-10-13 19:35:17,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:17,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 19931 transitions. [2021-10-13 19:35:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:17,851 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:17,851 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:17,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-13 19:35:18,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-13 19:35:18,052 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:18,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1958108707, now seen corresponding path program 2 times [2021-10-13 19:35:18,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:18,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761572974] [2021-10-13 19:35:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:18,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:18,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:18,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761572974] [2021-10-13 19:35:18,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761572974] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:18,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006627380] [2021-10-13 19:35:18,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:35:18,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:18,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:18,213 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:18,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-13 19:35:18,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:35:18,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:35:18,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 19:35:18,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:18,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:35:18,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:18,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-13 19:35:19,001 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:19,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:19,050 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:19,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:19,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006627380] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:19,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:19,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-13 19:35:19,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593124782] [2021-10-13 19:35:19,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:35:19,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:19,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:35:19,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:35:19,079 INFO L87 Difference]: Start difference. First operand 4641 states and 19931 transitions. Second operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:19,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:19,914 INFO L93 Difference]: Finished difference Result 4721 states and 20141 transitions. [2021-10-13 19:35:19,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:35:19,914 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:19,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:19,929 INFO L225 Difference]: With dead ends: 4721 [2021-10-13 19:35:19,929 INFO L226 Difference]: Without dead ends: 4721 [2021-10-13 19:35:19,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 462.6ms TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:35:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4721 states. [2021-10-13 19:35:20,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4721 to 4627. [2021-10-13 19:35:20,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4627 states, 4196 states have (on average 4.732364156339371) internal successors, (19857), 4626 states have internal predecessors, (19857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:20,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 19857 transitions. [2021-10-13 19:35:20,045 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 19857 transitions. Word has length 12 [2021-10-13 19:35:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:20,045 INFO L470 AbstractCegarLoop]: Abstraction has 4627 states and 19857 transitions. [2021-10-13 19:35:20,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 19857 transitions. [2021-10-13 19:35:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:20,046 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:20,046 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:20,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:20,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-13 19:35:20,247 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1958108703, now seen corresponding path program 1 times [2021-10-13 19:35:20,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:20,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379336413] [2021-10-13 19:35:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:20,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:20,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:20,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379336413] [2021-10-13 19:35:20,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379336413] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:20,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181105788] [2021-10-13 19:35:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:20,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:20,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:20,498 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:20,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-13 19:35:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:21,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:35:21,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:21,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:21,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:21,352 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:35:21,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:35:21,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:35:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:22,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-13 19:35:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:22,534 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:35:22,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:35:22,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:22,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:22,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:35:22,856 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:22,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:22,914 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:22,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:22,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181105788] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:22,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:22,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 17 [2021-10-13 19:35:22,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277548150] [2021-10-13 19:35:22,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:35:22,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:35:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:35:22,982 INFO L87 Difference]: Start difference. First operand 4627 states and 19857 transitions. Second operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:24,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:24,229 INFO L93 Difference]: Finished difference Result 4702 states and 20079 transitions. [2021-10-13 19:35:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:35:24,230 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:24,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:24,244 INFO L225 Difference]: With dead ends: 4702 [2021-10-13 19:35:24,244 INFO L226 Difference]: Without dead ends: 4702 [2021-10-13 19:35:24,245 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 904.8ms TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:35:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4702 states. [2021-10-13 19:35:24,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4702 to 4613. [2021-10-13 19:35:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4613 states, 4182 states have (on average 4.737207077953133) internal successors, (19811), 4612 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4613 states to 4613 states and 19811 transitions. [2021-10-13 19:35:24,406 INFO L78 Accepts]: Start accepts. Automaton has 4613 states and 19811 transitions. Word has length 12 [2021-10-13 19:35:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:24,407 INFO L470 AbstractCegarLoop]: Abstraction has 4613 states and 19811 transitions. [2021-10-13 19:35:24,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:24,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4613 states and 19811 transitions. [2021-10-13 19:35:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:24,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:24,407 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:24,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:24,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-13 19:35:24,608 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:24,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:24,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1958108702, now seen corresponding path program 1 times [2021-10-13 19:35:24,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:24,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154550217] [2021-10-13 19:35:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:24,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:24,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:24,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154550217] [2021-10-13 19:35:24,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154550217] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:24,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598540756] [2021-10-13 19:35:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:24,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:24,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:24,814 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:24,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-13 19:35:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:25,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:35:25,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:25,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:25,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:25,660 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:35:25,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:35:26,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:35:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:26,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:35:26,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:26,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:26,909 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:35:26,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:35:27,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-13 19:35:27,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:27,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:35:27,213 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:27,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:27,269 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:27,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:27,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598540756] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:27,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:27,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-10-13 19:35:27,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746819151] [2021-10-13 19:35:27,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:35:27,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:27,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:35:27,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:35:27,301 INFO L87 Difference]: Start difference. First operand 4613 states and 19811 transitions. Second operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:28,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:28,303 INFO L93 Difference]: Finished difference Result 4683 states and 20017 transitions. [2021-10-13 19:35:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:35:28,303 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:28,318 INFO L225 Difference]: With dead ends: 4683 [2021-10-13 19:35:28,318 INFO L226 Difference]: Without dead ends: 4683 [2021-10-13 19:35:28,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 761.4ms TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:35:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states. [2021-10-13 19:35:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 4599. [2021-10-13 19:35:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4599 states, 4168 states have (on average 4.742082533589252) internal successors, (19765), 4598 states have internal predecessors, (19765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 19765 transitions. [2021-10-13 19:35:28,463 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 19765 transitions. Word has length 12 [2021-10-13 19:35:28,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:28,464 INFO L470 AbstractCegarLoop]: Abstraction has 4599 states and 19765 transitions. [2021-10-13 19:35:28,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 19765 transitions. [2021-10-13 19:35:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:35:28,464 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:28,464 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:28,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:28,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:28,665 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:28,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:28,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1958108712, now seen corresponding path program 1 times [2021-10-13 19:35:28,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:28,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254611695] [2021-10-13 19:35:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:28,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:28,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:28,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254611695] [2021-10-13 19:35:28,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254611695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:28,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295814157] [2021-10-13 19:35:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:28,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:28,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:28,822 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:28,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-13 19:35:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:29,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 19:35:29,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:29,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:35:29,713 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:29,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:35:29,767 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:29,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:29,816 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:29,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:29,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:29,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295814157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:29,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:29,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-13 19:35:29,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472689946] [2021-10-13 19:35:29,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:35:29,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:29,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:35:29,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:35:29,846 INFO L87 Difference]: Start difference. First operand 4599 states and 19765 transitions. Second operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:30,317 INFO L93 Difference]: Finished difference Result 4585 states and 19719 transitions. [2021-10-13 19:35:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:35:30,318 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:35:30,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:30,332 INFO L225 Difference]: With dead ends: 4585 [2021-10-13 19:35:30,333 INFO L226 Difference]: Without dead ends: 4585 [2021-10-13 19:35:30,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 248.4ms TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:35:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4585 states. [2021-10-13 19:35:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4585 to 4585. [2021-10-13 19:35:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4585 states, 4154 states have (on average 4.74699085219066) internal successors, (19719), 4584 states have internal predecessors, (19719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4585 states to 4585 states and 19719 transitions. [2021-10-13 19:35:30,426 INFO L78 Accepts]: Start accepts. Automaton has 4585 states and 19719 transitions. Word has length 12 [2021-10-13 19:35:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:30,426 INFO L470 AbstractCegarLoop]: Abstraction has 4585 states and 19719 transitions. [2021-10-13 19:35:30,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4585 states and 19719 transitions. [2021-10-13 19:35:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:30,427 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:30,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:30,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:30,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:30,628 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:30,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1572376329, now seen corresponding path program 1 times [2021-10-13 19:35:30,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:30,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630228330] [2021-10-13 19:35:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:30,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:35:30,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:30,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630228330] [2021-10-13 19:35:30,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630228330] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:30,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836456875] [2021-10-13 19:35:30,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:30,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:30,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:30,701 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:30,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-13 19:35:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:31,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:35:31,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:35:31,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836456875] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:31,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:31,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:35:31,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678278332] [2021-10-13 19:35:31,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:35:31,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:31,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:35:31,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:35:31,521 INFO L87 Difference]: Start difference. First operand 4585 states and 19719 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:31,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:31,621 INFO L93 Difference]: Finished difference Result 5192 states and 20185 transitions. [2021-10-13 19:35:31,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:35:31,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:31,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:31,645 INFO L225 Difference]: With dead ends: 5192 [2021-10-13 19:35:31,645 INFO L226 Difference]: Without dead ends: 5192 [2021-10-13 19:35:31,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:35:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2021-10-13 19:35:31,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 3972. [2021-10-13 19:35:31,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3972 states, 3637 states have (on average 4.754193016222161) internal successors, (17291), 3971 states have internal predecessors, (17291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 17291 transitions. [2021-10-13 19:35:31,890 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 17291 transitions. Word has length 13 [2021-10-13 19:35:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:31,890 INFO L470 AbstractCegarLoop]: Abstraction has 3972 states and 17291 transitions. [2021-10-13 19:35:31,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 17291 transitions. [2021-10-13 19:35:31,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:31,892 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:31,892 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:31,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:32,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:32,100 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:32,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:32,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1572376334, now seen corresponding path program 1 times [2021-10-13 19:35:32,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:32,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086527932] [2021-10-13 19:35:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:32,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:35:32,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:32,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086527932] [2021-10-13 19:35:32,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086527932] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:35:32,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:35:32,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:35:32,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334903537] [2021-10-13 19:35:32,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:35:32,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:35:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:35:32,151 INFO L87 Difference]: Start difference. First operand 3972 states and 17291 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:32,214 INFO L93 Difference]: Finished difference Result 3415 states and 15085 transitions. [2021-10-13 19:35:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:35:32,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:32,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:32,229 INFO L225 Difference]: With dead ends: 3415 [2021-10-13 19:35:32,229 INFO L226 Difference]: Without dead ends: 3415 [2021-10-13 19:35:32,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:35:32,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2021-10-13 19:35:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 2651. [2021-10-13 19:35:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2651 states, 2400 states have (on average 4.168333333333333) internal successors, (10004), 2650 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 10004 transitions. [2021-10-13 19:35:32,302 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 10004 transitions. Word has length 13 [2021-10-13 19:35:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:32,302 INFO L470 AbstractCegarLoop]: Abstraction has 2651 states and 10004 transitions. [2021-10-13 19:35:32,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 10004 transitions. [2021-10-13 19:35:32,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:32,303 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:32,303 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:32,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-13 19:35:32,304 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:32,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:32,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1572376336, now seen corresponding path program 1 times [2021-10-13 19:35:32,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:32,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294571847] [2021-10-13 19:35:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:32,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:32,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:32,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294571847] [2021-10-13 19:35:32,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294571847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:32,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985919337] [2021-10-13 19:35:32,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:32,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:32,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:32,392 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:32,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-13 19:35:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:33,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 19:35:33,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:33,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985919337] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:33,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:33,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:35:33,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078512300] [2021-10-13 19:35:33,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:35:33,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:35:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:35:33,321 INFO L87 Difference]: Start difference. First operand 2651 states and 10004 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:33,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:33,672 INFO L93 Difference]: Finished difference Result 2711 states and 10026 transitions. [2021-10-13 19:35:33,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:35:33,672 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:33,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:33,679 INFO L225 Difference]: With dead ends: 2711 [2021-10-13 19:35:33,679 INFO L226 Difference]: Without dead ends: 2548 [2021-10-13 19:35:33,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 153.0ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:35:33,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2021-10-13 19:35:33,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2516. [2021-10-13 19:35:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2265 states have (on average 4.219867549668874) internal successors, (9558), 2515 states have internal predecessors, (9558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 9558 transitions. [2021-10-13 19:35:33,725 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 9558 transitions. Word has length 13 [2021-10-13 19:35:33,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:33,725 INFO L470 AbstractCegarLoop]: Abstraction has 2516 states and 9558 transitions. [2021-10-13 19:35:33,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 9558 transitions. [2021-10-13 19:35:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:33,725 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:33,726 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:33,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:33,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:33,927 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:33,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:33,927 INFO L82 PathProgramCache]: Analyzing trace with hash -571822981, now seen corresponding path program 1 times [2021-10-13 19:35:33,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:33,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335863837] [2021-10-13 19:35:33,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:33,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:34,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:34,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:34,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335863837] [2021-10-13 19:35:34,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335863837] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:34,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657783660] [2021-10-13 19:35:34,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:34,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:34,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:34,016 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:34,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-13 19:35:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:34,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 19:35:34,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:34,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657783660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:34,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:34,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:35:34,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965595858] [2021-10-13 19:35:34,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:35:34,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:34,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:35:34,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:35:34,876 INFO L87 Difference]: Start difference. First operand 2516 states and 9558 transitions. Second operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:35,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:35,819 INFO L93 Difference]: Finished difference Result 5036 states and 17000 transitions. [2021-10-13 19:35:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:35:35,819 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:35,832 INFO L225 Difference]: With dead ends: 5036 [2021-10-13 19:35:35,832 INFO L226 Difference]: Without dead ends: 5024 [2021-10-13 19:35:35,833 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 334.3ms TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:35:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2021-10-13 19:35:35,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 2702. [2021-10-13 19:35:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2451 states have (on average 4.217870257037943) internal successors, (10338), 2701 states have internal predecessors, (10338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 10338 transitions. [2021-10-13 19:35:35,892 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 10338 transitions. Word has length 13 [2021-10-13 19:35:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:35,892 INFO L470 AbstractCegarLoop]: Abstraction has 2702 states and 10338 transitions. [2021-10-13 19:35:35,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 10338 transitions. [2021-10-13 19:35:35,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:35,893 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:35,893 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:35,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-13 19:35:36,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-13 19:35:36,094 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:36,094 INFO L82 PathProgramCache]: Analyzing trace with hash -571823446, now seen corresponding path program 1 times [2021-10-13 19:35:36,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:36,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820460355] [2021-10-13 19:35:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:36,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:36,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:36,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820460355] [2021-10-13 19:35:36,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820460355] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:36,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707520675] [2021-10-13 19:35:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:36,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:36,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:36,336 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:36,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-13 19:35:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:37,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:35:37,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:37,256 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:35:37,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 421 treesize of output 419 [2021-10-13 19:35:40,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:40,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:40,957 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:35:40,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:35:41,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:35:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:41,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-13 19:35:41,292 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:41,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:41,362 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:41,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:41,416 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:35:41,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:35:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:41,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707520675] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:41,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:41,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2021-10-13 19:35:41,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051833627] [2021-10-13 19:35:41,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:35:41,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:41,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:35:41,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:35:41,423 INFO L87 Difference]: Start difference. First operand 2702 states and 10338 transitions. Second operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:43,088 INFO L93 Difference]: Finished difference Result 5024 states and 17946 transitions. [2021-10-13 19:35:43,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:35:43,089 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:43,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:43,104 INFO L225 Difference]: With dead ends: 5024 [2021-10-13 19:35:43,104 INFO L226 Difference]: Without dead ends: 5024 [2021-10-13 19:35:43,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1259.0ms TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:35:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2021-10-13 19:35:43,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 2803. [2021-10-13 19:35:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2552 states have (on average 4.3757836990595615) internal successors, (11167), 2802 states have internal predecessors, (11167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 11167 transitions. [2021-10-13 19:35:43,170 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 11167 transitions. Word has length 13 [2021-10-13 19:35:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:43,171 INFO L470 AbstractCegarLoop]: Abstraction has 2803 states and 11167 transitions. [2021-10-13 19:35:43,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:43,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 11167 transitions. [2021-10-13 19:35:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:43,171 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:43,171 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:43,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:43,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-13 19:35:43,372 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:43,373 INFO L82 PathProgramCache]: Analyzing trace with hash -571823442, now seen corresponding path program 1 times [2021-10-13 19:35:43,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:43,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601952569] [2021-10-13 19:35:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:43,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:43,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:43,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601952569] [2021-10-13 19:35:43,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601952569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:43,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096373970] [2021-10-13 19:35:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:43,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:43,630 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:43,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-13 19:35:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:44,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:35:44,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:44,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:44,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:44,542 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:35:44,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:35:44,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:35:45,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:45,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-13 19:35:45,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:45,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:45,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:45,579 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:35:45,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:35:45,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:35:45,810 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:35:45,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:35:45,874 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:45,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:45,934 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:45,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:46,029 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:46,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:46,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096373970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:46,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:46,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:35:46,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286705849] [2021-10-13 19:35:46,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:35:46,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:46,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:35:46,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:35:46,049 INFO L87 Difference]: Start difference. First operand 2803 states and 11167 transitions. Second operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:46,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:46,753 INFO L93 Difference]: Finished difference Result 3388 states and 12228 transitions. [2021-10-13 19:35:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:35:46,753 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:46,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:46,762 INFO L225 Difference]: With dead ends: 3388 [2021-10-13 19:35:46,762 INFO L226 Difference]: Without dead ends: 3388 [2021-10-13 19:35:46,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 607.0ms TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:35:46,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2021-10-13 19:35:46,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2735. [2021-10-13 19:35:46,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2484 states have (on average 4.250805152979066) internal successors, (10559), 2734 states have internal predecessors, (10559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:46,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 10559 transitions. [2021-10-13 19:35:46,816 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 10559 transitions. Word has length 13 [2021-10-13 19:35:46,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:46,816 INFO L470 AbstractCegarLoop]: Abstraction has 2735 states and 10559 transitions. [2021-10-13 19:35:46,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:46,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 10559 transitions. [2021-10-13 19:35:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:46,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:46,817 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:46,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-10-13 19:35:47,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:47,019 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:47,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:47,020 INFO L82 PathProgramCache]: Analyzing trace with hash -571823441, now seen corresponding path program 1 times [2021-10-13 19:35:47,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:47,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755967152] [2021-10-13 19:35:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:47,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:47,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:47,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755967152] [2021-10-13 19:35:47,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755967152] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:47,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952047077] [2021-10-13 19:35:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:47,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:47,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:47,350 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:47,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-13 19:35:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:48,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:35:48,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:48,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:48,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:48,329 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:35:48,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:35:48,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:35:48,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:48,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:35:49,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:49,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:49,364 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:35:49,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:35:49,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:49,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:35:49,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:35:49,722 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:49,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:49,791 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:49,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:49,898 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:49,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:49,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952047077] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:49,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:49,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2021-10-13 19:35:49,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822979354] [2021-10-13 19:35:49,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:35:49,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:49,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:35:49,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:35:49,916 INFO L87 Difference]: Start difference. First operand 2735 states and 10559 transitions. Second operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:51,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:51,446 INFO L93 Difference]: Finished difference Result 4212 states and 14684 transitions. [2021-10-13 19:35:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:35:51,446 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:51,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:51,457 INFO L225 Difference]: With dead ends: 4212 [2021-10-13 19:35:51,457 INFO L226 Difference]: Without dead ends: 4212 [2021-10-13 19:35:51,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1245.0ms TimeCoverageRelationStatistics Valid=194, Invalid=736, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:35:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2021-10-13 19:35:51,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 2667. [2021-10-13 19:35:51,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2416 states have (on average 4.118791390728477) internal successors, (9951), 2666 states have internal predecessors, (9951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 9951 transitions. [2021-10-13 19:35:51,518 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 9951 transitions. Word has length 13 [2021-10-13 19:35:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:51,518 INFO L470 AbstractCegarLoop]: Abstraction has 2667 states and 9951 transitions. [2021-10-13 19:35:51,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 9951 transitions. [2021-10-13 19:35:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:51,519 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:51,519 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:51,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:51,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-13 19:35:51,721 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:51,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:51,721 INFO L82 PathProgramCache]: Analyzing trace with hash -571823451, now seen corresponding path program 1 times [2021-10-13 19:35:51,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:51,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081497399] [2021-10-13 19:35:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:51,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:51,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:51,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081497399] [2021-10-13 19:35:51,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081497399] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:51,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131523953] [2021-10-13 19:35:51,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:51,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:51,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:51,928 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:51,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-13 19:35:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:52,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:35:52,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:52,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:35:52,936 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:52,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:35:52,995 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:52,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:53,099 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:53,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:53,184 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:53,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:35:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:53,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131523953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:53,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:53,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-13 19:35:53,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738525753] [2021-10-13 19:35:53,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:35:53,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:53,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:35:53,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:35:53,202 INFO L87 Difference]: Start difference. First operand 2667 states and 9951 transitions. Second operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:53,589 INFO L93 Difference]: Finished difference Result 2882 states and 10126 transitions. [2021-10-13 19:35:53,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:35:53,589 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:53,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:53,596 INFO L225 Difference]: With dead ends: 2882 [2021-10-13 19:35:53,596 INFO L226 Difference]: Without dead ends: 2870 [2021-10-13 19:35:53,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 334.7ms TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:35:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2021-10-13 19:35:53,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2587. [2021-10-13 19:35:53,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 2336 states have (on average 3.9815924657534247) internal successors, (9301), 2586 states have internal predecessors, (9301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 9301 transitions. [2021-10-13 19:35:53,640 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 9301 transitions. Word has length 13 [2021-10-13 19:35:53,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:53,640 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 9301 transitions. [2021-10-13 19:35:53,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 9301 transitions. [2021-10-13 19:35:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:35:53,641 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:53,641 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:53,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:53,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:53,857 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1365786267, now seen corresponding path program 2 times [2021-10-13 19:35:53,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:53,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184870468] [2021-10-13 19:35:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:53,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:53,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:53,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184870468] [2021-10-13 19:35:53,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184870468] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:53,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317711031] [2021-10-13 19:35:53,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:35:53,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:53,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:53,917 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:53,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-13 19:35:54,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:35:54,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:35:54,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 19:35:54,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:54,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317711031] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:54,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:54,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 19:35:54,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344890438] [2021-10-13 19:35:54,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 19:35:54,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:54,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 19:35:54,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:35:54,871 INFO L87 Difference]: Start difference. First operand 2587 states and 9301 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:55,013 INFO L93 Difference]: Finished difference Result 2418 states and 8754 transitions. [2021-10-13 19:35:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:35:55,014 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:35:55,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:55,022 INFO L225 Difference]: With dead ends: 2418 [2021-10-13 19:35:55,022 INFO L226 Difference]: Without dead ends: 2418 [2021-10-13 19:35:55,022 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 94.8ms TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:35:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2021-10-13 19:35:55,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2021-10-13 19:35:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2167 states have (on average 4.03968620212275) internal successors, (8754), 2417 states have internal predecessors, (8754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 8754 transitions. [2021-10-13 19:35:55,064 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 8754 transitions. Word has length 13 [2021-10-13 19:35:55,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:55,064 INFO L470 AbstractCegarLoop]: Abstraction has 2418 states and 8754 transitions. [2021-10-13 19:35:55,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:55,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 8754 transitions. [2021-10-13 19:35:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:35:55,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:55,065 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:55,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:55,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:55,266 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:55,267 INFO L82 PathProgramCache]: Analyzing trace with hash 414794057, now seen corresponding path program 1 times [2021-10-13 19:35:55,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:55,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180025035] [2021-10-13 19:35:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:55,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:35:55,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:55,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180025035] [2021-10-13 19:35:55,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180025035] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:55,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921449739] [2021-10-13 19:35:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:55,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:55,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:55,633 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:55,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-13 19:35:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:56,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:35:56,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:35:56,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:35:56,788 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:56,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:56,954 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:56,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:57,021 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:35:57,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:35:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:35:57,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921449739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:57,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:35:57,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2021-10-13 19:35:57,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316248641] [2021-10-13 19:35:57,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:35:57,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:35:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:35:57,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:35:57,045 INFO L87 Difference]: Start difference. First operand 2418 states and 8754 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:35:58,409 INFO L93 Difference]: Finished difference Result 4837 states and 16504 transitions. [2021-10-13 19:35:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:35:58,410 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:35:58,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:35:58,425 INFO L225 Difference]: With dead ends: 4837 [2021-10-13 19:35:58,426 INFO L226 Difference]: Without dead ends: 4837 [2021-10-13 19:35:58,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 821.2ms TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:35:58,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2021-10-13 19:35:58,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 2537. [2021-10-13 19:35:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2286 states have (on average 4.299212598425197) internal successors, (9828), 2536 states have internal predecessors, (9828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 9828 transitions. [2021-10-13 19:35:58,542 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 9828 transitions. Word has length 14 [2021-10-13 19:35:58,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:35:58,542 INFO L470 AbstractCegarLoop]: Abstraction has 2537 states and 9828 transitions. [2021-10-13 19:35:58,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:35:58,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 9828 transitions. [2021-10-13 19:35:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:35:58,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:35:58,543 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:35:58,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-13 19:35:58,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-10-13 19:35:58,744 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:35:58,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:35:58,745 INFO L82 PathProgramCache]: Analyzing trace with hash 414794060, now seen corresponding path program 1 times [2021-10-13 19:35:58,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:35:58,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308878077] [2021-10-13 19:35:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:58,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:35:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:35:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:35:59,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:35:59,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308878077] [2021-10-13 19:35:59,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308878077] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:35:59,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027545359] [2021-10-13 19:35:59,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:35:59,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:35:59,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:59,118 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:35:59,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-13 19:36:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:00,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 19:36:00,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:00,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:00,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:00,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:00,199 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:36:00,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:36:00,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:36:01,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:01,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:01,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:01,238 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:36:01,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:36:01,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:36:01,463 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:36:01,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:36:01,530 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:01,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:01,708 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:01,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:01,779 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:01,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:01,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:36:01,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027545359] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:01,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:01,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:36:01,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857870072] [2021-10-13 19:36:01,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:36:01,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:01,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:36:01,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:36:01,799 INFO L87 Difference]: Start difference. First operand 2537 states and 9828 transitions. Second operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:02,659 INFO L93 Difference]: Finished difference Result 3714 states and 12809 transitions. [2021-10-13 19:36:02,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:36:02,659 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:02,670 INFO L225 Difference]: With dead ends: 3714 [2021-10-13 19:36:02,670 INFO L226 Difference]: Without dead ends: 3714 [2021-10-13 19:36:02,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 650.6ms TimeCoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:36:02,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2021-10-13 19:36:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 2486. [2021-10-13 19:36:02,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2235 states have (on average 4.226845637583892) internal successors, (9447), 2485 states have internal predecessors, (9447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 9447 transitions. [2021-10-13 19:36:02,718 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 9447 transitions. Word has length 14 [2021-10-13 19:36:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:02,719 INFO L470 AbstractCegarLoop]: Abstraction has 2486 states and 9447 transitions. [2021-10-13 19:36:02,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 9447 transitions. [2021-10-13 19:36:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:02,719 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:02,719 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:02,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-10-13 19:36:02,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-10-13 19:36:02,920 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:02,921 INFO L82 PathProgramCache]: Analyzing trace with hash 414794061, now seen corresponding path program 1 times [2021-10-13 19:36:02,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:02,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456066492] [2021-10-13 19:36:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:02,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:36:03,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:03,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456066492] [2021-10-13 19:36:03,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456066492] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:03,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682654648] [2021-10-13 19:36:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:03,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:03,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:03,333 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:03,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-13 19:36:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:04,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 19:36:04,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:04,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:04,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:04,444 INFO L354 Elim1Store]: treesize reduction 332, result has 11.9 percent of original size [2021-10-13 19:36:04,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 189 treesize of output 215 [2021-10-13 19:36:05,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:36:05,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:05,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:05,895 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:36:05,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 68 treesize of output 124 [2021-10-13 19:36:06,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:36:06,123 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:36:06,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:36:06,179 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:36:06,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:06,339 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:36:06,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:36:06,401 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:36:06,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:36:06,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682654648] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:06,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:06,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:36:06,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145075516] [2021-10-13 19:36:06,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:36:06,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:06,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:36:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:36:06,424 INFO L87 Difference]: Start difference. First operand 2486 states and 9447 transitions. Second operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:07,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:07,166 INFO L93 Difference]: Finished difference Result 3493 states and 11991 transitions. [2021-10-13 19:36:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:36:07,167 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:07,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:07,175 INFO L225 Difference]: With dead ends: 3493 [2021-10-13 19:36:07,175 INFO L226 Difference]: Without dead ends: 3493 [2021-10-13 19:36:07,175 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 609.7ms TimeCoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:36:07,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2021-10-13 19:36:07,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 2435. [2021-10-13 19:36:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2184 states have (on average 4.1510989010989015) internal successors, (9066), 2434 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 9066 transitions. [2021-10-13 19:36:07,221 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 9066 transitions. Word has length 14 [2021-10-13 19:36:07,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:07,221 INFO L470 AbstractCegarLoop]: Abstraction has 2435 states and 9066 transitions. [2021-10-13 19:36:07,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:07,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 9066 transitions. [2021-10-13 19:36:07,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:07,222 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:07,222 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:07,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:07,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-10-13 19:36:07,438 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:07,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:07,438 INFO L82 PathProgramCache]: Analyzing trace with hash 414794066, now seen corresponding path program 1 times [2021-10-13 19:36:07,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:07,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980799223] [2021-10-13 19:36:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:07,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:07,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:07,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980799223] [2021-10-13 19:36:07,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980799223] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:07,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275512084] [2021-10-13 19:36:07,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:07,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:07,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:07,841 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:07,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-13 19:36:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:08,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:36:08,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:08,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:36:09,041 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:36:09,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:09,205 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:36:09,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:09,272 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:36:09,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:36:09,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275512084] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:09,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:09,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2021-10-13 19:36:09,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270762087] [2021-10-13 19:36:09,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:36:09,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:09,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:36:09,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:36:09,294 INFO L87 Difference]: Start difference. First operand 2435 states and 9066 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:10,636 INFO L93 Difference]: Finished difference Result 3970 states and 13342 transitions. [2021-10-13 19:36:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:36:10,636 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:10,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:10,647 INFO L225 Difference]: With dead ends: 3970 [2021-10-13 19:36:10,647 INFO L226 Difference]: Without dead ends: 3922 [2021-10-13 19:36:10,647 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 822.5ms TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:36:10,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2021-10-13 19:36:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 2360. [2021-10-13 19:36:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 2109 states have (on average 4.0820293978188715) internal successors, (8609), 2359 states have internal predecessors, (8609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 8609 transitions. [2021-10-13 19:36:10,708 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 8609 transitions. Word has length 14 [2021-10-13 19:36:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:10,708 INFO L470 AbstractCegarLoop]: Abstraction has 2360 states and 8609 transitions. [2021-10-13 19:36:10,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 8609 transitions. [2021-10-13 19:36:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:10,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:10,709 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:10,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:10,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,51 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:10,910 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:10,910 INFO L82 PathProgramCache]: Analyzing trace with hash -538968028, now seen corresponding path program 3 times [2021-10-13 19:36:10,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:10,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051860228] [2021-10-13 19:36:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:10,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:11,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:11,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051860228] [2021-10-13 19:36:11,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051860228] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:11,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658590956] [2021-10-13 19:36:11,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:36:11,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:11,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:11,308 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:11,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-13 19:36:12,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-13 19:36:12,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:12,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:36:12,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:12,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:36:12,590 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-13 19:36:12,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:36:12,685 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-10-13 19:36:12,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 19:36:12,799 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-10-13 19:36:12,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 19:36:12,904 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-10-13 19:36:12,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 19:36:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:13,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658590956] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:13,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:13,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-13 19:36:13,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423492576] [2021-10-13 19:36:13,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:36:13,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:13,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:36:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:36:13,021 INFO L87 Difference]: Start difference. First operand 2360 states and 8609 transitions. Second operand has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:14,867 INFO L93 Difference]: Finished difference Result 3063 states and 11325 transitions. [2021-10-13 19:36:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:36:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:14,876 INFO L225 Difference]: With dead ends: 3063 [2021-10-13 19:36:14,876 INFO L226 Difference]: Without dead ends: 3063 [2021-10-13 19:36:14,876 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1630.4ms TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:36:14,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2021-10-13 19:36:14,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 2511. [2021-10-13 19:36:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2260 states have (on average 4.098230088495575) internal successors, (9262), 2510 states have internal predecessors, (9262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:14,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 9262 transitions. [2021-10-13 19:36:14,976 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 9262 transitions. Word has length 14 [2021-10-13 19:36:14,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:14,976 INFO L470 AbstractCegarLoop]: Abstraction has 2511 states and 9262 transitions. [2021-10-13 19:36:14,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 9262 transitions. [2021-10-13 19:36:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:14,977 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:14,977 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:15,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:15,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-10-13 19:36:15,178 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:15,180 INFO L82 PathProgramCache]: Analyzing trace with hash -538968026, now seen corresponding path program 2 times [2021-10-13 19:36:15,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:15,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548765884] [2021-10-13 19:36:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:15,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:15,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:15,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548765884] [2021-10-13 19:36:15,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548765884] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:15,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83746832] [2021-10-13 19:36:15,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:15,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:15,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:15,666 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:15,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-13 19:36:16,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:16,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:16,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 19:36:16,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:16,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:36:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:17,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:36:17,114 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-10-13 19:36:17,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2021-10-13 19:36:17,231 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-10-13 19:36:17,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2021-10-13 19:36:17,336 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-10-13 19:36:17,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 37 [2021-10-13 19:36:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:17,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83746832] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:17,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:17,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-13 19:36:17,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565330465] [2021-10-13 19:36:17,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:36:17,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:17,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:36:17,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:36:17,475 INFO L87 Difference]: Start difference. First operand 2511 states and 9262 transitions. Second operand has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:18,835 INFO L93 Difference]: Finished difference Result 2863 states and 10321 transitions. [2021-10-13 19:36:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:36:18,835 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:18,843 INFO L225 Difference]: With dead ends: 2863 [2021-10-13 19:36:18,843 INFO L226 Difference]: Without dead ends: 2863 [2021-10-13 19:36:18,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1269.1ms TimeCoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:36:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2021-10-13 19:36:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2511. [2021-10-13 19:36:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2260 states have (on average 4.076106194690266) internal successors, (9212), 2510 states have internal predecessors, (9212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 9212 transitions. [2021-10-13 19:36:18,888 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 9212 transitions. Word has length 14 [2021-10-13 19:36:18,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:18,889 INFO L470 AbstractCegarLoop]: Abstraction has 2511 states and 9212 transitions. [2021-10-13 19:36:18,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:18,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 9212 transitions. [2021-10-13 19:36:18,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:18,889 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:18,889 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:18,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-10-13 19:36:19,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,53 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:19,090 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:19,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:19,091 INFO L82 PathProgramCache]: Analyzing trace with hash -538968021, now seen corresponding path program 2 times [2021-10-13 19:36:19,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:19,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420640001] [2021-10-13 19:36:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:19,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:36:19,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:19,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420640001] [2021-10-13 19:36:19,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420640001] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:19,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585358131] [2021-10-13 19:36:19,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:19,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:19,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:19,509 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:19,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-13 19:36:20,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:20,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:20,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 19:36:20,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:20,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:20,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:20,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:20,636 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:36:20,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:36:20,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:36:21,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:21,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:36:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:21,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:21,826 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:36:21,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:36:22,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:22,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-10-13 19:36:22,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:22,163 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-10-13 19:36:22,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 54 [2021-10-13 19:36:22,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:22,279 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-10-13 19:36:22,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 39 [2021-10-13 19:36:22,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:22,409 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-10-13 19:36:22,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 39 [2021-10-13 19:36:22,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:22,518 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-10-13 19:36:22,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 39 [2021-10-13 19:36:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:22,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585358131] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:22,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:22,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 19 [2021-10-13 19:36:22,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253967044] [2021-10-13 19:36:22,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:36:22,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:22,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:36:22,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:36:22,659 INFO L87 Difference]: Start difference. First operand 2511 states and 9212 transitions. Second operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:23,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:23,627 INFO L93 Difference]: Finished difference Result 2561 states and 9288 transitions. [2021-10-13 19:36:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:36:23,628 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:23,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:23,635 INFO L225 Difference]: With dead ends: 2561 [2021-10-13 19:36:23,635 INFO L226 Difference]: Without dead ends: 2561 [2021-10-13 19:36:23,638 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 913.5ms TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:36:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-10-13 19:36:23,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2511. [2021-10-13 19:36:23,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2260 states have (on average 4.053982300884956) internal successors, (9162), 2510 states have internal predecessors, (9162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 9162 transitions. [2021-10-13 19:36:23,686 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 9162 transitions. Word has length 14 [2021-10-13 19:36:23,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:23,686 INFO L470 AbstractCegarLoop]: Abstraction has 2511 states and 9162 transitions. [2021-10-13 19:36:23,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 9162 transitions. [2021-10-13 19:36:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:23,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:23,687 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:23,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:23,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-13 19:36:23,888 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:23,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:23,889 INFO L82 PathProgramCache]: Analyzing trace with hash -538968020, now seen corresponding path program 2 times [2021-10-13 19:36:23,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:23,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979831106] [2021-10-13 19:36:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:23,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:36:24,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:24,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979831106] [2021-10-13 19:36:24,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979831106] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:24,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998907524] [2021-10-13 19:36:24,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:24,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:24,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:24,354 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:24,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-13 19:36:25,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:25,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:25,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 19:36:25,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:25,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:25,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:25,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:25,570 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:36:25,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:36:25,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:36:26,556 INFO L354 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-10-13 19:36:26,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 39 [2021-10-13 19:36:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:26,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:26,864 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:36:26,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:36:27,080 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-10-13 19:36:27,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2021-10-13 19:36:27,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:27,224 INFO L354 Elim1Store]: treesize reduction 45, result has 16.7 percent of original size [2021-10-13 19:36:27,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 56 [2021-10-13 19:36:27,349 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-10-13 19:36:27,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2021-10-13 19:36:27,505 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-10-13 19:36:27,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2021-10-13 19:36:27,640 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-10-13 19:36:27,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2021-10-13 19:36:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:27,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998907524] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:27,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:27,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 19 [2021-10-13 19:36:27,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195869043] [2021-10-13 19:36:27,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:36:27,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:36:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:36:27,803 INFO L87 Difference]: Start difference. First operand 2511 states and 9162 transitions. Second operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:29,481 INFO L93 Difference]: Finished difference Result 2561 states and 9288 transitions. [2021-10-13 19:36:29,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:36:29,482 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:29,488 INFO L225 Difference]: With dead ends: 2561 [2021-10-13 19:36:29,488 INFO L226 Difference]: Without dead ends: 2357 [2021-10-13 19:36:29,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1580.1ms TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:36:29,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2021-10-13 19:36:29,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2357. [2021-10-13 19:36:29,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2106 states have (on average 4.085470085470085) internal successors, (8604), 2356 states have internal predecessors, (8604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 8604 transitions. [2021-10-13 19:36:29,528 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 8604 transitions. Word has length 14 [2021-10-13 19:36:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:29,528 INFO L470 AbstractCegarLoop]: Abstraction has 2357 states and 8604 transitions. [2021-10-13 19:36:29,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 8604 transitions. [2021-10-13 19:36:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:29,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:29,528 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:29,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:29,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-10-13 19:36:29,729 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:29,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2131946195, now seen corresponding path program 3 times [2021-10-13 19:36:29,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:29,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917689961] [2021-10-13 19:36:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:29,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:30,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:30,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:30,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917689961] [2021-10-13 19:36:30,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917689961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:30,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487942115] [2021-10-13 19:36:30,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:36:30,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:30,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:30,138 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:30,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-13 19:36:31,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:36:31,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:31,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:36:31,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:31,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-13 19:36:31,671 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:36:31,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:36:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:36:31,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487942115] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:31,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:31,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 22 [2021-10-13 19:36:31,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81194359] [2021-10-13 19:36:31,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:36:31,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:31,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:36:31,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:36:31,928 INFO L87 Difference]: Start difference. First operand 2357 states and 8604 transitions. Second operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:34,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:34,259 INFO L93 Difference]: Finished difference Result 5107 states and 18256 transitions. [2021-10-13 19:36:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:36:34,260 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:34,274 INFO L225 Difference]: With dead ends: 5107 [2021-10-13 19:36:34,274 INFO L226 Difference]: Without dead ends: 5107 [2021-10-13 19:36:34,274 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1955.9ms TimeCoverageRelationStatistics Valid=336, Invalid=1386, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:36:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2021-10-13 19:36:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 2367. [2021-10-13 19:36:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2116 states have (on average 4.07703213610586) internal successors, (8627), 2366 states have internal predecessors, (8627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 8627 transitions. [2021-10-13 19:36:34,333 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 8627 transitions. Word has length 14 [2021-10-13 19:36:34,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:34,333 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 8627 transitions. [2021-10-13 19:36:34,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 8627 transitions. [2021-10-13 19:36:34,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:34,333 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:34,334 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:34,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:34,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-13 19:36:34,535 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:34,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:34,535 INFO L82 PathProgramCache]: Analyzing trace with hash -2131946192, now seen corresponding path program 2 times [2021-10-13 19:36:34,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:34,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909040341] [2021-10-13 19:36:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:34,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:36:34,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:34,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909040341] [2021-10-13 19:36:34,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909040341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:34,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520403931] [2021-10-13 19:36:34,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:34,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:34,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:34,788 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:34,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-13 19:36:35,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:35,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:35,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:36:35,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:35,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:36,030 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:36:36,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:36:37,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-13 19:36:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:37,852 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:36:37,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:36:38,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:36:38,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:36:38,178 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-13 19:36:38,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:36:38,245 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:36:38,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:36:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:38,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520403931] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:38,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:38,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 22 [2021-10-13 19:36:38,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129696222] [2021-10-13 19:36:38,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:36:38,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:38,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:36:38,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:36:38,473 INFO L87 Difference]: Start difference. First operand 2367 states and 8627 transitions. Second operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:40,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:40,586 INFO L93 Difference]: Finished difference Result 2786 states and 10037 transitions. [2021-10-13 19:36:40,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:36:40,588 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:40,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:40,596 INFO L225 Difference]: With dead ends: 2786 [2021-10-13 19:36:40,597 INFO L226 Difference]: Without dead ends: 2786 [2021-10-13 19:36:40,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1700.7ms TimeCoverageRelationStatistics Valid=244, Invalid=1562, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:36:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-10-13 19:36:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2368. [2021-10-13 19:36:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2117 states have (on average 4.077940481813887) internal successors, (8633), 2367 states have internal predecessors, (8633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 8633 transitions. [2021-10-13 19:36:40,639 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 8633 transitions. Word has length 14 [2021-10-13 19:36:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:40,639 INFO L470 AbstractCegarLoop]: Abstraction has 2368 states and 8633 transitions. [2021-10-13 19:36:40,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 8633 transitions. [2021-10-13 19:36:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:40,640 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:40,640 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:40,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:40,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:40,841 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:40,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2131946191, now seen corresponding path program 2 times [2021-10-13 19:36:40,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:40,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293018774] [2021-10-13 19:36:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:40,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:36:41,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:41,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293018774] [2021-10-13 19:36:41,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293018774] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:41,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285671924] [2021-10-13 19:36:41,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:41,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:41,168 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:41,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-13 19:36:42,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:42,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:42,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 19:36:42,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:42,480 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:36:42,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:36:44,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:36:44,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:44,237 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:36:44,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:36:44,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:36:44,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:36:44,462 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:36:44,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:36:44,513 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:44,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:36:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:36:44,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285671924] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:44,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:44,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-13 19:36:44,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363086228] [2021-10-13 19:36:44,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:36:44,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:44,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:36:44,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:36:44,653 INFO L87 Difference]: Start difference. First operand 2368 states and 8633 transitions. Second operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:46,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:46,241 INFO L93 Difference]: Finished difference Result 2420 states and 8721 transitions. [2021-10-13 19:36:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:36:46,242 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:46,248 INFO L225 Difference]: With dead ends: 2420 [2021-10-13 19:36:46,248 INFO L226 Difference]: Without dead ends: 2420 [2021-10-13 19:36:46,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1234.4ms TimeCoverageRelationStatistics Valid=192, Invalid=1140, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:36:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2021-10-13 19:36:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2369. [2021-10-13 19:36:46,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2118 states have (on average 4.07695939565628) internal successors, (8635), 2368 states have internal predecessors, (8635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:46,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 8635 transitions. [2021-10-13 19:36:46,289 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 8635 transitions. Word has length 14 [2021-10-13 19:36:46,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:46,289 INFO L470 AbstractCegarLoop]: Abstraction has 2369 states and 8635 transitions. [2021-10-13 19:36:46,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:46,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 8635 transitions. [2021-10-13 19:36:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:36:46,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:46,290 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:46,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:46,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:46,491 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:46,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:46,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2131946186, now seen corresponding path program 2 times [2021-10-13 19:36:46,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:46,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305398793] [2021-10-13 19:36:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:46,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:46,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:46,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305398793] [2021-10-13 19:36:46,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305398793] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:46,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753511260] [2021-10-13 19:36:46,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:46,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:46,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:46,858 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:46,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-13 19:36:48,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:48,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:48,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:36:48,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:48,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:36:48,469 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:48,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:36:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:48,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753511260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:48,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:48,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:36:48,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480543394] [2021-10-13 19:36:48,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:36:48,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:48,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:36:48,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:36:48,651 INFO L87 Difference]: Start difference. First operand 2369 states and 8635 transitions. Second operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:50,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:50,142 INFO L93 Difference]: Finished difference Result 4755 states and 17286 transitions. [2021-10-13 19:36:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:36:50,143 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:36:50,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:50,156 INFO L225 Difference]: With dead ends: 4755 [2021-10-13 19:36:50,156 INFO L226 Difference]: Without dead ends: 4755 [2021-10-13 19:36:50,156 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1348.3ms TimeCoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:36:50,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2021-10-13 19:36:50,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 2369. [2021-10-13 19:36:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2118 states have (on average 4.076015108593012) internal successors, (8633), 2368 states have internal predecessors, (8633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:50,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 8633 transitions. [2021-10-13 19:36:50,211 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 8633 transitions. Word has length 14 [2021-10-13 19:36:50,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:50,211 INFO L470 AbstractCegarLoop]: Abstraction has 2369 states and 8633 transitions. [2021-10-13 19:36:50,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 8633 transitions. [2021-10-13 19:36:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:36:50,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:50,212 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:50,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:50,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-10-13 19:36:50,413 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:50,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:50,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1665817000, now seen corresponding path program 3 times [2021-10-13 19:36:50,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:50,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689826435] [2021-10-13 19:36:50,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:50,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:36:50,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:50,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689826435] [2021-10-13 19:36:50,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689826435] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:50,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173465898] [2021-10-13 19:36:50,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:36:50,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:50,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:50,528 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:50,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-13 19:36:51,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:36:51,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:51,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:36:51,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:36:51,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173465898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:51,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:51,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:36:51,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865213522] [2021-10-13 19:36:51,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:36:51,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:51,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:36:51,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:36:51,918 INFO L87 Difference]: Start difference. First operand 2369 states and 8633 transitions. Second operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:53,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:53,082 INFO L93 Difference]: Finished difference Result 8775 states and 29796 transitions. [2021-10-13 19:36:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 19:36:53,083 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:36:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:53,109 INFO L225 Difference]: With dead ends: 8775 [2021-10-13 19:36:53,109 INFO L226 Difference]: Without dead ends: 8771 [2021-10-13 19:36:53,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 438.9ms TimeCoverageRelationStatistics Valid=430, Invalid=1462, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:36:53,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8771 states. [2021-10-13 19:36:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8771 to 3262. [2021-10-13 19:36:53,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3011 states have (on average 4.336765194287612) internal successors, (13058), 3261 states have internal predecessors, (13058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 13058 transitions. [2021-10-13 19:36:53,207 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 13058 transitions. Word has length 15 [2021-10-13 19:36:53,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:53,208 INFO L470 AbstractCegarLoop]: Abstraction has 3262 states and 13058 transitions. [2021-10-13 19:36:53,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:53,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 13058 transitions. [2021-10-13 19:36:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:36:53,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:53,209 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:53,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:53,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:53,414 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:53,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:53,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1665817965, now seen corresponding path program 2 times [2021-10-13 19:36:53,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:53,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879816797] [2021-10-13 19:36:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:53,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:53,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:53,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879816797] [2021-10-13 19:36:53,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879816797] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:53,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709616025] [2021-10-13 19:36:53,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:53,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:53,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:53,905 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:53,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-13 19:36:55,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:55,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:55,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:36:55,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:55,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:36:55,481 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:55,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:55,716 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:36:55,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:36:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:36:55,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709616025] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:55,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:36:55,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-13 19:36:55,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501872983] [2021-10-13 19:36:55,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:36:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:36:55,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:36:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:36:55,765 INFO L87 Difference]: Start difference. First operand 3262 states and 13058 transitions. Second operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:57,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:36:57,891 INFO L93 Difference]: Finished difference Result 5668 states and 21734 transitions. [2021-10-13 19:36:57,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:36:57,891 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:36:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:36:57,910 INFO L225 Difference]: With dead ends: 5668 [2021-10-13 19:36:57,911 INFO L226 Difference]: Without dead ends: 5668 [2021-10-13 19:36:57,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1685.9ms TimeCoverageRelationStatistics Valid=221, Invalid=1261, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:36:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5668 states. [2021-10-13 19:36:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5668 to 3306. [2021-10-13 19:36:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3306 states, 3055 states have (on average 4.33911620294599) internal successors, (13256), 3305 states have internal predecessors, (13256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3306 states to 3306 states and 13256 transitions. [2021-10-13 19:36:57,994 INFO L78 Accepts]: Start accepts. Automaton has 3306 states and 13256 transitions. Word has length 15 [2021-10-13 19:36:57,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:36:57,994 INFO L470 AbstractCegarLoop]: Abstraction has 3306 states and 13256 transitions. [2021-10-13 19:36:57,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:36:57,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3306 states and 13256 transitions. [2021-10-13 19:36:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:36:57,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:36:57,995 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:36:58,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-10-13 19:36:58,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-10-13 19:36:58,196 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:36:58,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:36:58,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1665817962, now seen corresponding path program 2 times [2021-10-13 19:36:58,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:36:58,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394410173] [2021-10-13 19:36:58,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:36:58,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:36:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:36:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:36:58,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:36:58,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394410173] [2021-10-13 19:36:58,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394410173] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:36:58,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495890547] [2021-10-13 19:36:58,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:36:58,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:36:58,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:36:58,633 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:36:58,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-13 19:36:59,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:36:59,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:36:59,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:36:59,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:36:59,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:36:59,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:00,057 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:37:00,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:37:01,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-13 19:37:01,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:01,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:01,755 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:37:01,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:37:01,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:37:02,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:37:02,142 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-10-13 19:37:02,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-10-13 19:37:02,221 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:37:02,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:37:02,527 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:37:02,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:37:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:02,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495890547] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:02,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:02,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 24 [2021-10-13 19:37:02,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787774217] [2021-10-13 19:37:02,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:37:02,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:37:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:37:02,588 INFO L87 Difference]: Start difference. First operand 3306 states and 13256 transitions. Second operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:06,236 INFO L93 Difference]: Finished difference Result 3789 states and 14784 transitions. [2021-10-13 19:37:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:37:06,236 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:06,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:06,247 INFO L225 Difference]: With dead ends: 3789 [2021-10-13 19:37:06,247 INFO L226 Difference]: Without dead ends: 3789 [2021-10-13 19:37:06,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2393.5ms TimeCoverageRelationStatistics Valid=236, Invalid=1486, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:37:06,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2021-10-13 19:37:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3306. [2021-10-13 19:37:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3306 states, 3055 states have (on average 4.331587561374795) internal successors, (13233), 3305 states have internal predecessors, (13233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:06,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3306 states to 3306 states and 13233 transitions. [2021-10-13 19:37:06,311 INFO L78 Accepts]: Start accepts. Automaton has 3306 states and 13233 transitions. Word has length 15 [2021-10-13 19:37:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:06,311 INFO L470 AbstractCegarLoop]: Abstraction has 3306 states and 13233 transitions. [2021-10-13 19:37:06,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3306 states and 13233 transitions. [2021-10-13 19:37:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:06,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:06,312 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:06,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:06,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-10-13 19:37:06,513 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:06,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1665817961, now seen corresponding path program 2 times [2021-10-13 19:37:06,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:06,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667892744] [2021-10-13 19:37:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:06,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:06,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:06,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667892744] [2021-10-13 19:37:06,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667892744] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:06,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859348461] [2021-10-13 19:37:06,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:37:06,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:06,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:06,927 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:06,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-13 19:37:08,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:37:08,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:37:08,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:37:08,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:08,261 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:37:08,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:37:09,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:37:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:09,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:09,972 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:37:09,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:37:10,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:10,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:37:10,342 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-10-13 19:37:10,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:37:10,415 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:10,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:10,668 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:10,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:10,716 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:10,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859348461] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:10,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:10,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 24 [2021-10-13 19:37:10,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613499905] [2021-10-13 19:37:10,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:37:10,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:37:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:37:10,719 INFO L87 Difference]: Start difference. First operand 3306 states and 13233 transitions. Second operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:13,756 INFO L93 Difference]: Finished difference Result 3871 states and 14985 transitions. [2021-10-13 19:37:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:37:13,757 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:13,767 INFO L225 Difference]: With dead ends: 3871 [2021-10-13 19:37:13,767 INFO L226 Difference]: Without dead ends: 3871 [2021-10-13 19:37:13,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2024.7ms TimeCoverageRelationStatistics Valid=237, Invalid=1655, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:37:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2021-10-13 19:37:13,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3317. [2021-10-13 19:37:13,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3066 states have (on average 4.337573385518591) internal successors, (13299), 3316 states have internal predecessors, (13299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 13299 transitions. [2021-10-13 19:37:13,829 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 13299 transitions. Word has length 15 [2021-10-13 19:37:13,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:13,829 INFO L470 AbstractCegarLoop]: Abstraction has 3317 states and 13299 transitions. [2021-10-13 19:37:13,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 13299 transitions. [2021-10-13 19:37:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:13,830 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:13,830 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:13,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:14,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-13 19:37:14,045 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:14,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:14,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1665817956, now seen corresponding path program 2 times [2021-10-13 19:37:14,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:14,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335099271] [2021-10-13 19:37:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:14,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:14,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:14,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335099271] [2021-10-13 19:37:14,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335099271] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:14,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019681818] [2021-10-13 19:37:14,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:37:14,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:14,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:14,510 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:14,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-13 19:37:15,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:37:15,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:37:15,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:37:15,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:15,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:37:16,005 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:16,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:16,215 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:16,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:37:16,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019681818] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:16,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:16,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 23 [2021-10-13 19:37:16,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711961334] [2021-10-13 19:37:16,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:37:16,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:16,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:37:16,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:37:16,257 INFO L87 Difference]: Start difference. First operand 3317 states and 13299 transitions. Second operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:19,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:19,539 INFO L93 Difference]: Finished difference Result 5437 states and 20726 transitions. [2021-10-13 19:37:19,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:37:19,539 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:19,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:19,554 INFO L225 Difference]: With dead ends: 5437 [2021-10-13 19:37:19,555 INFO L226 Difference]: Without dead ends: 5437 [2021-10-13 19:37:19,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2355.0ms TimeCoverageRelationStatistics Valid=309, Invalid=1761, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:37:19,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2021-10-13 19:37:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 3317. [2021-10-13 19:37:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3066 states have (on average 4.322570123939987) internal successors, (13253), 3316 states have internal predecessors, (13253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 13253 transitions. [2021-10-13 19:37:19,629 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 13253 transitions. Word has length 15 [2021-10-13 19:37:19,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:19,629 INFO L470 AbstractCegarLoop]: Abstraction has 3317 states and 13253 transitions. [2021-10-13 19:37:19,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 13253 transitions. [2021-10-13 19:37:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:19,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:19,631 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:19,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:19,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,64 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:19,841 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:19,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:19,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1419773076, now seen corresponding path program 2 times [2021-10-13 19:37:19,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:19,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365742492] [2021-10-13 19:37:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:19,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:20,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:20,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365742492] [2021-10-13 19:37:20,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365742492] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:20,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300240059] [2021-10-13 19:37:20,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:37:20,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:20,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:20,181 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:20,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-13 19:37:21,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:37:21,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:37:21,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:37:21,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:21,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:37:21,888 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:21,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:21,971 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:21,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:37:22,048 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:22,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:37:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:22,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300240059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:22,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:22,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:37:22,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034539224] [2021-10-13 19:37:22,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:37:22,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:22,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:37:22,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:37:22,197 INFO L87 Difference]: Start difference. First operand 3317 states and 13253 transitions. Second operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:25,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:25,334 INFO L93 Difference]: Finished difference Result 4977 states and 19279 transitions. [2021-10-13 19:37:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:37:25,335 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:25,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:25,349 INFO L225 Difference]: With dead ends: 4977 [2021-10-13 19:37:25,349 INFO L226 Difference]: Without dead ends: 4977 [2021-10-13 19:37:25,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 2620.0ms TimeCoverageRelationStatistics Valid=455, Invalid=2197, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 19:37:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2021-10-13 19:37:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 2963. [2021-10-13 19:37:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2712 states have (on average 4.396017699115045) internal successors, (11922), 2962 states have internal predecessors, (11922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 11922 transitions. [2021-10-13 19:37:25,416 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 11922 transitions. Word has length 15 [2021-10-13 19:37:25,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:25,416 INFO L470 AbstractCegarLoop]: Abstraction has 2963 states and 11922 transitions. [2021-10-13 19:37:25,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 11922 transitions. [2021-10-13 19:37:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:25,416 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:25,416 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:25,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:25,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-10-13 19:37:25,618 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:25,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:25,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1419773072, now seen corresponding path program 1 times [2021-10-13 19:37:25,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:25,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351380264] [2021-10-13 19:37:25,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:25,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:25,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:25,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351380264] [2021-10-13 19:37:25,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351380264] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:25,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142467434] [2021-10-13 19:37:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:25,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:25,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:25,913 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:25,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-13 19:37:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:27,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:37:27,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:27,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:27,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:27,295 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:37:27,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:37:28,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:37:28,672 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:28,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:28,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:28,873 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:37:28,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:37:28,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:37:29,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:37:29,058 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:37:29,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:37:29,113 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:29,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:37:29,168 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:29,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:37:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:29,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142467434] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:29,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:29,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-13 19:37:29,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305444344] [2021-10-13 19:37:29,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:37:29,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:37:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:37:29,231 INFO L87 Difference]: Start difference. First operand 2963 states and 11922 transitions. Second operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:30,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:30,008 INFO L93 Difference]: Finished difference Result 3077 states and 12315 transitions. [2021-10-13 19:37:30,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:37:30,008 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:30,017 INFO L225 Difference]: With dead ends: 3077 [2021-10-13 19:37:30,017 INFO L226 Difference]: Without dead ends: 3077 [2021-10-13 19:37:30,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 669.4ms TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:37:30,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2021-10-13 19:37:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2986. [2021-10-13 19:37:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2735 states have (on average 4.416819012797075) internal successors, (12080), 2985 states have internal predecessors, (12080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 12080 transitions. [2021-10-13 19:37:30,069 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 12080 transitions. Word has length 15 [2021-10-13 19:37:30,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:30,070 INFO L470 AbstractCegarLoop]: Abstraction has 2986 states and 12080 transitions. [2021-10-13 19:37:30,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 12080 transitions. [2021-10-13 19:37:30,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:30,070 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:30,070 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:30,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:30,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-13 19:37:30,271 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:30,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:30,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1419773071, now seen corresponding path program 1 times [2021-10-13 19:37:30,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:30,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367687812] [2021-10-13 19:37:30,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:30,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:30,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:30,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367687812] [2021-10-13 19:37:30,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367687812] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:30,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792829000] [2021-10-13 19:37:30,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:30,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:30,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:30,559 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:30,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-13 19:37:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:31,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:37:31,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:31,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:32,000 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:37:32,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:37:33,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:37:33,447 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:33,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:37:33,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:33,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:33,660 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:37:33,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:37:33,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:37:33,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:37:33,913 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:37:33,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:37:33,972 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:33,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:34,032 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:34,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:34,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792829000] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:34,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:34,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-13 19:37:34,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962103723] [2021-10-13 19:37:34,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:37:34,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:37:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:37:34,097 INFO L87 Difference]: Start difference. First operand 2986 states and 12080 transitions. Second operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:34,864 INFO L93 Difference]: Finished difference Result 3057 states and 12240 transitions. [2021-10-13 19:37:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:37:34,865 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:34,873 INFO L225 Difference]: With dead ends: 3057 [2021-10-13 19:37:34,873 INFO L226 Difference]: Without dead ends: 3057 [2021-10-13 19:37:34,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 666.6ms TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:37:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2021-10-13 19:37:34,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 2986. [2021-10-13 19:37:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2735 states have (on average 4.408409506398537) internal successors, (12057), 2985 states have internal predecessors, (12057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 12057 transitions. [2021-10-13 19:37:34,927 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 12057 transitions. Word has length 15 [2021-10-13 19:37:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:34,927 INFO L470 AbstractCegarLoop]: Abstraction has 2986 states and 12057 transitions. [2021-10-13 19:37:34,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:34,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 12057 transitions. [2021-10-13 19:37:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:34,928 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:34,928 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:34,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:35,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:35,129 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:35,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1419773081, now seen corresponding path program 1 times [2021-10-13 19:37:35,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:35,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196510559] [2021-10-13 19:37:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:35,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:35,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:35,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196510559] [2021-10-13 19:37:35,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196510559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:35,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361901205] [2021-10-13 19:37:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:35,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:35,472 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:35,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-13 19:37:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:36,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:37:36,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:37,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:37:37,126 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:37,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:37:37,186 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:37,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:37:37,243 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:37,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:37:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:37:37,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361901205] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:37,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:37,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2021-10-13 19:37:37,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341601872] [2021-10-13 19:37:37,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:37:37,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:37,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:37:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:37:37,302 INFO L87 Difference]: Start difference. First operand 2986 states and 12057 transitions. Second operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:38,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:38,300 INFO L93 Difference]: Finished difference Result 3037 states and 12165 transitions. [2021-10-13 19:37:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:37:38,301 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:38,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:38,309 INFO L225 Difference]: With dead ends: 3037 [2021-10-13 19:37:38,309 INFO L226 Difference]: Without dead ends: 3037 [2021-10-13 19:37:38,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 747.4ms TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:37:38,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2021-10-13 19:37:38,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2986. [2021-10-13 19:37:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2735 states have (on average 4.4) internal successors, (12034), 2985 states have internal predecessors, (12034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 12034 transitions. [2021-10-13 19:37:38,367 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 12034 transitions. Word has length 15 [2021-10-13 19:37:38,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:38,367 INFO L470 AbstractCegarLoop]: Abstraction has 2986 states and 12034 transitions. [2021-10-13 19:37:38,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:38,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 12034 transitions. [2021-10-13 19:37:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:37:38,368 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:38,368 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:38,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:38,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:38,571 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1075141995, now seen corresponding path program 4 times [2021-10-13 19:37:38,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:38,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211492926] [2021-10-13 19:37:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:38,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:38,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:38,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211492926] [2021-10-13 19:37:38,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211492926] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:38,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273068219] [2021-10-13 19:37:38,678 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:37:38,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:38,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:38,680 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:38,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-13 19:37:40,042 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:37:40,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:37:40,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 19:37:40,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:40,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273068219] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:40,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:40,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-13 19:37:40,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198755303] [2021-10-13 19:37:40,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:37:40,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:40,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:37:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:37:40,279 INFO L87 Difference]: Start difference. First operand 2986 states and 12034 transitions. Second operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:40,608 INFO L93 Difference]: Finished difference Result 4864 states and 18927 transitions. [2021-10-13 19:37:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:37:40,609 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:37:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:40,623 INFO L225 Difference]: With dead ends: 4864 [2021-10-13 19:37:40,623 INFO L226 Difference]: Without dead ends: 4864 [2021-10-13 19:37:40,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 228.9ms TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:37:40,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2021-10-13 19:37:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 2934. [2021-10-13 19:37:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2683 states have (on average 4.409988818486768) internal successors, (11832), 2933 states have internal predecessors, (11832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 11832 transitions. [2021-10-13 19:37:40,690 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 11832 transitions. Word has length 15 [2021-10-13 19:37:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:40,690 INFO L470 AbstractCegarLoop]: Abstraction has 2934 states and 11832 transitions. [2021-10-13 19:37:40,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 11832 transitions. [2021-10-13 19:37:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:37:40,691 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:40,691 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:40,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:40,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:40,892 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:40,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1063287600, now seen corresponding path program 2 times [2021-10-13 19:37:40,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:40,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643187718] [2021-10-13 19:37:40,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:40,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:37:41,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:41,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643187718] [2021-10-13 19:37:41,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643187718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:41,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066171124] [2021-10-13 19:37:41,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:37:41,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:41,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:41,037 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:41,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-13 19:37:42,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:37:42,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:37:42,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 19:37:42,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:37:42,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066171124] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:42,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:42,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-10-13 19:37:42,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538278283] [2021-10-13 19:37:42,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:37:42,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:42,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:37:42,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:37:42,626 INFO L87 Difference]: Start difference. First operand 2934 states and 11832 transitions. Second operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:43,889 INFO L93 Difference]: Finished difference Result 6280 states and 22171 transitions. [2021-10-13 19:37:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:37:43,890 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:37:43,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:43,917 INFO L225 Difference]: With dead ends: 6280 [2021-10-13 19:37:43,917 INFO L226 Difference]: Without dead ends: 6268 [2021-10-13 19:37:43,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 564.4ms TimeCoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:37:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-10-13 19:37:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 3232. [2021-10-13 19:37:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 2981 states have (on average 4.346192552834619) internal successors, (12956), 3231 states have internal predecessors, (12956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 12956 transitions. [2021-10-13 19:37:44,014 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 12956 transitions. Word has length 16 [2021-10-13 19:37:44,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:44,014 INFO L470 AbstractCegarLoop]: Abstraction has 3232 states and 12956 transitions. [2021-10-13 19:37:44,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 12956 transitions. [2021-10-13 19:37:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:37:44,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:44,015 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:44,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:44,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:44,229 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:44,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1063288069, now seen corresponding path program 1 times [2021-10-13 19:37:44,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:44,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763462289] [2021-10-13 19:37:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:44,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:44,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:44,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763462289] [2021-10-13 19:37:44,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763462289] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:44,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960073640] [2021-10-13 19:37:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:44,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:44,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:44,736 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:44,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-13 19:37:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:46,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:37:46,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:46,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:37:46,330 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:46,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:46,390 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:46,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:37:46,453 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:46,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:37:46,581 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:46,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:37:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:37:46,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960073640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:46,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:46,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 23 [2021-10-13 19:37:46,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113554776] [2021-10-13 19:37:46,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:37:46,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:46,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:37:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:37:46,609 INFO L87 Difference]: Start difference. First operand 3232 states and 12956 transitions. Second operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:47,638 INFO L93 Difference]: Finished difference Result 4481 states and 17012 transitions. [2021-10-13 19:37:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:37:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:37:47,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:47,655 INFO L225 Difference]: With dead ends: 4481 [2021-10-13 19:37:47,655 INFO L226 Difference]: Without dead ends: 4481 [2021-10-13 19:37:47,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 760.6ms TimeCoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:37:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2021-10-13 19:37:47,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 3333. [2021-10-13 19:37:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3082 states have (on average 4.491239454899416) internal successors, (13842), 3332 states have internal predecessors, (13842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 13842 transitions. [2021-10-13 19:37:47,728 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 13842 transitions. Word has length 16 [2021-10-13 19:37:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:47,728 INFO L470 AbstractCegarLoop]: Abstraction has 3333 states and 13842 transitions. [2021-10-13 19:37:47,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 13842 transitions. [2021-10-13 19:37:47,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:37:47,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:47,729 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:47,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:47,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:47,930 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1063288065, now seen corresponding path program 1 times [2021-10-13 19:37:47,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:47,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476443698] [2021-10-13 19:37:47,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:47,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:48,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:48,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476443698] [2021-10-13 19:37:48,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476443698] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:48,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198954073] [2021-10-13 19:37:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:48,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:48,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:48,311 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:48,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-13 19:37:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:49,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:37:49,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:49,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:49,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:49,887 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:37:49,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:37:50,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:37:50,939 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:50,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:37:51,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:51,497 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:37:51,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:37:51,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:37:51,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:37:51,770 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:37:51,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:37:51,836 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:51,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:37:51,901 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:51,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:37:52,043 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:52,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:37:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:52,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198954073] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:52,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:52,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2021-10-13 19:37:52,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759013910] [2021-10-13 19:37:52,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:37:52,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:37:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:37:52,072 INFO L87 Difference]: Start difference. First operand 3333 states and 13842 transitions. Second operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:37:53,418 INFO L93 Difference]: Finished difference Result 4210 states and 15825 transitions. [2021-10-13 19:37:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:37:53,419 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:37:53,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:37:53,434 INFO L225 Difference]: With dead ends: 4210 [2021-10-13 19:37:53,434 INFO L226 Difference]: Without dead ends: 4210 [2021-10-13 19:37:53,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 922.8ms TimeCoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:37:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2021-10-13 19:37:53,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3248. [2021-10-13 19:37:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 2997 states have (on average 4.384718051384718) internal successors, (13141), 3247 states have internal predecessors, (13141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 13141 transitions. [2021-10-13 19:37:53,522 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 13141 transitions. Word has length 16 [2021-10-13 19:37:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:37:53,522 INFO L470 AbstractCegarLoop]: Abstraction has 3248 states and 13141 transitions. [2021-10-13 19:37:53,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:37:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 13141 transitions. [2021-10-13 19:37:53,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:37:53,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:37:53,523 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:37:53,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-10-13 19:37:53,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,72 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:53,724 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:37:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:37:53,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1063288064, now seen corresponding path program 1 times [2021-10-13 19:37:53,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:37:53,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932920376] [2021-10-13 19:37:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:53,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:37:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:37:54,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:37:54,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932920376] [2021-10-13 19:37:54,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932920376] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:54,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749957126] [2021-10-13 19:37:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:37:54,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:37:54,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:37:54,489 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:37:54,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-10-13 19:37:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:37:56,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:37:56,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:37:56,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:56,210 INFO L354 Elim1Store]: treesize reduction 354, result has 12.4 percent of original size [2021-10-13 19:37:56,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 542 treesize of output 554 [2021-10-13 19:37:58,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:37:59,063 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:37:59,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:37:59,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:37:59,307 INFO L354 Elim1Store]: treesize reduction 112, result has 39.5 percent of original size [2021-10-13 19:37:59,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 76 treesize of output 132 [2021-10-13 19:37:59,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:37:59,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:37:59,683 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-10-13 19:37:59,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:37:59,770 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:59,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:37:59,852 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:37:59,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:37:59,929 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:37:59,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-13 19:37:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:37:59,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749957126] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:37:59,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:37:59,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 21 [2021-10-13 19:37:59,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577782063] [2021-10-13 19:37:59,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:37:59,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:37:59,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:37:59,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:37:59,978 INFO L87 Difference]: Start difference. First operand 3248 states and 13141 transitions. Second operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:01,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:01,994 INFO L93 Difference]: Finished difference Result 3939 states and 14638 transitions. [2021-10-13 19:38:01,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:38:01,994 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:01,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:02,006 INFO L225 Difference]: With dead ends: 3939 [2021-10-13 19:38:02,006 INFO L226 Difference]: Without dead ends: 3939 [2021-10-13 19:38:02,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1823.0ms TimeCoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:38:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2021-10-13 19:38:02,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3163. [2021-10-13 19:38:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 2912 states have (on average 4.271978021978022) internal successors, (12440), 3162 states have internal predecessors, (12440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 12440 transitions. [2021-10-13 19:38:02,068 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 12440 transitions. Word has length 16 [2021-10-13 19:38:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:02,068 INFO L470 AbstractCegarLoop]: Abstraction has 3163 states and 12440 transitions. [2021-10-13 19:38:02,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 12440 transitions. [2021-10-13 19:38:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:38:02,069 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:02,069 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:02,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:02,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2021-10-13 19:38:02,277 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:02,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1063288074, now seen corresponding path program 1 times [2021-10-13 19:38:02,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:02,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146041082] [2021-10-13 19:38:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:02,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:02,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:02,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146041082] [2021-10-13 19:38:02,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146041082] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:02,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629287640] [2021-10-13 19:38:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:02,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:02,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:02,702 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:02,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-10-13 19:38:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:04,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:38:04,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:04,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:38:04,417 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:38:04,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:38:04,485 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:38:04,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:04,558 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:38:04,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:04,759 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:38:04,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:38:04,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629287640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:04,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:04,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 23 [2021-10-13 19:38:04,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167163479] [2021-10-13 19:38:04,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 19:38:04,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:04,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 19:38:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:38:04,792 INFO L87 Difference]: Start difference. First operand 3163 states and 12440 transitions. Second operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:05,822 INFO L93 Difference]: Finished difference Result 3668 states and 13451 transitions. [2021-10-13 19:38:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:38:05,823 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:05,835 INFO L225 Difference]: With dead ends: 3668 [2021-10-13 19:38:05,835 INFO L226 Difference]: Without dead ends: 3650 [2021-10-13 19:38:05,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 848.9ms TimeCoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:38:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2021-10-13 19:38:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 3060. [2021-10-13 19:38:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 2809 states have (on average 4.1534353862584545) internal successors, (11667), 3059 states have internal predecessors, (11667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 11667 transitions. [2021-10-13 19:38:05,959 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 11667 transitions. Word has length 16 [2021-10-13 19:38:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:05,959 INFO L470 AbstractCegarLoop]: Abstraction has 3060 states and 11667 transitions. [2021-10-13 19:38:05,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 11667 transitions. [2021-10-13 19:38:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:38:05,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:05,960 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:05,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:06,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-10-13 19:38:06,165 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:06,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1055617197, now seen corresponding path program 4 times [2021-10-13 19:38:06,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:06,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600748398] [2021-10-13 19:38:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:06,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:06,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:06,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600748398] [2021-10-13 19:38:06,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600748398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:06,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162997372] [2021-10-13 19:38:06,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:38:06,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:06,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:06,858 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:06,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-13 19:38:08,437 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:38:08,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:08,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-13 19:38:08,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:08,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:38:08,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:08,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:38:08,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:08,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:08,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:08,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 19:38:08,975 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-10-13 19:38:08,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2021-10-13 19:38:09,100 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-10-13 19:38:09,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2021-10-13 19:38:09,215 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-10-13 19:38:09,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 43 [2021-10-13 19:38:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:09,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162997372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:09,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:09,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-10-13 19:38:09,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735390691] [2021-10-13 19:38:09,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:38:09,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:38:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:38:09,347 INFO L87 Difference]: Start difference. First operand 3060 states and 11667 transitions. Second operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:11,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:11,435 INFO L93 Difference]: Finished difference Result 4066 states and 15806 transitions. [2021-10-13 19:38:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:38:11,436 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:11,455 INFO L225 Difference]: With dead ends: 4066 [2021-10-13 19:38:11,455 INFO L226 Difference]: Without dead ends: 4066 [2021-10-13 19:38:11,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1899.2ms TimeCoverageRelationStatistics Valid=200, Invalid=990, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:38:11,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2021-10-13 19:38:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 2898. [2021-10-13 19:38:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2647 states have (on average 4.141669814884775) internal successors, (10963), 2897 states have internal predecessors, (10963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:11,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 10963 transitions. [2021-10-13 19:38:11,604 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 10963 transitions. Word has length 16 [2021-10-13 19:38:11,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:11,604 INFO L470 AbstractCegarLoop]: Abstraction has 2898 states and 10963 transitions. [2021-10-13 19:38:11,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:11,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 10963 transitions. [2021-10-13 19:38:11,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:38:11,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:11,605 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:11,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:11,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,75 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:11,819 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1055617195, now seen corresponding path program 3 times [2021-10-13 19:38:11,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:11,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113731463] [2021-10-13 19:38:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:11,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:12,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:12,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113731463] [2021-10-13 19:38:12,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113731463] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:12,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121164315] [2021-10-13 19:38:12,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:38:12,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:12,443 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:12,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-10-13 19:38:14,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:38:14,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:14,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-13 19:38:14,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:14,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:38:14,550 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-13 19:38:14,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:38:14,657 INFO L354 Elim1Store]: treesize reduction 52, result has 35.8 percent of original size [2021-10-13 19:38:14,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 63 [2021-10-13 19:38:14,868 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 19:38:14,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2021-10-13 19:38:15,060 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 19:38:15,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2021-10-13 19:38:15,242 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 19:38:15,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2021-10-13 19:38:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:15,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121164315] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:15,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:15,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:38:15,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598483157] [2021-10-13 19:38:15,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:38:15,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:15,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:38:15,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:38:15,458 INFO L87 Difference]: Start difference. First operand 2898 states and 10963 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:17,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:17,543 INFO L93 Difference]: Finished difference Result 2836 states and 10568 transitions. [2021-10-13 19:38:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:38:17,544 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:17,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:17,551 INFO L225 Difference]: With dead ends: 2836 [2021-10-13 19:38:17,551 INFO L226 Difference]: Without dead ends: 2836 [2021-10-13 19:38:17,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1942.6ms TimeCoverageRelationStatistics Valid=153, Invalid=903, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:38:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2021-10-13 19:38:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 2800. [2021-10-13 19:38:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 2549 states have (on average 4.1373087485288345) internal successors, (10546), 2799 states have internal predecessors, (10546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 10546 transitions. [2021-10-13 19:38:17,609 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 10546 transitions. Word has length 16 [2021-10-13 19:38:17,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:17,610 INFO L470 AbstractCegarLoop]: Abstraction has 2800 states and 10546 transitions. [2021-10-13 19:38:17,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 10546 transitions. [2021-10-13 19:38:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:38:17,610 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:17,610 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:17,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:17,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-10-13 19:38:17,823 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:17,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:17,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1055617190, now seen corresponding path program 3 times [2021-10-13 19:38:17,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:17,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826430727] [2021-10-13 19:38:17,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:17,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:38:18,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:18,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826430727] [2021-10-13 19:38:18,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826430727] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:18,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496790507] [2021-10-13 19:38:18,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:38:18,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:18,425 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:18,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-13 19:38:19,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:38:19,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:19,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:38:19,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:20,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:20,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:20,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:20,123 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:38:20,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:38:20,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:38:20,790 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-13 19:38:20,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:38:21,199 INFO L354 Elim1Store]: treesize reduction 52, result has 35.8 percent of original size [2021-10-13 19:38:21,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 63 [2021-10-13 19:38:21,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:21,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:21,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:21,773 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:38:21,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:38:22,001 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-10-13 19:38:22,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 62 [2021-10-13 19:38:22,061 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-10-13 19:38:22,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 62 [2021-10-13 19:38:22,155 INFO L354 Elim1Store]: treesize reduction 150, result has 15.7 percent of original size [2021-10-13 19:38:22,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 78 [2021-10-13 19:38:22,287 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 19:38:22,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2021-10-13 19:38:22,478 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 19:38:22,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2021-10-13 19:38:22,634 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 19:38:22,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2021-10-13 19:38:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:38:22,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496790507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:22,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:22,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-13 19:38:22,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95596530] [2021-10-13 19:38:22,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:38:22,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:22,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:38:22,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:38:22,823 INFO L87 Difference]: Start difference. First operand 2800 states and 10546 transitions. Second operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:25,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:25,822 INFO L93 Difference]: Finished difference Result 3234 states and 12006 transitions. [2021-10-13 19:38:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:38:25,822 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:25,830 INFO L225 Difference]: With dead ends: 3234 [2021-10-13 19:38:25,830 INFO L226 Difference]: Without dead ends: 3234 [2021-10-13 19:38:25,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2555.3ms TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:38:25,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2021-10-13 19:38:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2702. [2021-10-13 19:38:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2451 states have (on average 4.132598939208487) internal successors, (10129), 2701 states have internal predecessors, (10129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:25,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 10129 transitions. [2021-10-13 19:38:25,926 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 10129 transitions. Word has length 16 [2021-10-13 19:38:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:25,926 INFO L470 AbstractCegarLoop]: Abstraction has 2702 states and 10129 transitions. [2021-10-13 19:38:25,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 10129 transitions. [2021-10-13 19:38:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:38:25,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:25,927 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:25,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:26,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:26,142 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:26,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:26,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1055617189, now seen corresponding path program 3 times [2021-10-13 19:38:26,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:26,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759026142] [2021-10-13 19:38:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:26,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:38:26,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:26,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759026142] [2021-10-13 19:38:26,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759026142] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:26,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64719078] [2021-10-13 19:38:26,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:38:26,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:26,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:26,991 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:26,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-10-13 19:38:28,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:38:28,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:28,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 68 conjunts are in the unsatisfiable core [2021-10-13 19:38:28,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:28,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:28,967 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:38:28,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:38:29,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:38:29,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:29,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:38:30,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:30,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:30,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:30,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 19:38:30,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:30,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:30,809 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:38:30,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:38:31,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2021-10-13 19:38:31,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-10-13 19:38:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,655 INFO L354 Elim1Store]: treesize reduction 108, result has 19.4 percent of original size [2021-10-13 19:38:31,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 70 [2021-10-13 19:38:31,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,856 INFO L354 Elim1Store]: treesize reduction 84, result has 23.6 percent of original size [2021-10-13 19:38:31,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2021-10-13 19:38:31,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:32,018 INFO L354 Elim1Store]: treesize reduction 84, result has 23.6 percent of original size [2021-10-13 19:38:32,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2021-10-13 19:38:32,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:32,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:32,180 INFO L354 Elim1Store]: treesize reduction 84, result has 23.6 percent of original size [2021-10-13 19:38:32,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 47 [2021-10-13 19:38:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:32,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64719078] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:32,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:32,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 22 [2021-10-13 19:38:32,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064472122] [2021-10-13 19:38:32,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 19:38:32,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 19:38:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:38:32,389 INFO L87 Difference]: Start difference. First operand 2702 states and 10129 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:34,481 INFO L93 Difference]: Finished difference Result 2948 states and 11074 transitions. [2021-10-13 19:38:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:38:34,481 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:34,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:34,490 INFO L225 Difference]: With dead ends: 2948 [2021-10-13 19:38:34,490 INFO L226 Difference]: Without dead ends: 2948 [2021-10-13 19:38:34,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2010.0ms TimeCoverageRelationStatistics Valid=156, Invalid=774, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:38:34,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-10-13 19:38:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2926. [2021-10-13 19:38:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2675 states have (on average 4.134953271028038) internal successors, (11061), 2925 states have internal predecessors, (11061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 11061 transitions. [2021-10-13 19:38:34,547 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 11061 transitions. Word has length 16 [2021-10-13 19:38:34,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:34,547 INFO L470 AbstractCegarLoop]: Abstraction has 2926 states and 11061 transitions. [2021-10-13 19:38:34,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:34,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 11061 transitions. [2021-10-13 19:38:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:38:34,548 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:34,548 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:34,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:34,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:34,755 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:34,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:34,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1898929694, now seen corresponding path program 5 times [2021-10-13 19:38:34,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:34,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21247712] [2021-10-13 19:38:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:34,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:35,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:35,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21247712] [2021-10-13 19:38:35,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21247712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:35,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064650852] [2021-10-13 19:38:35,230 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:38:35,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:35,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:35,233 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:35,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-10-13 19:38:37,161 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 19:38:37,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:37,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:38:37,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:37,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:38:37,355 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:38:37,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:38:37,411 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:38:37,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:38:37,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064650852] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:37,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:37,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 24 [2021-10-13 19:38:37,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567513707] [2021-10-13 19:38:37,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:38:37,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:37,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:38:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:38:37,564 INFO L87 Difference]: Start difference. First operand 2926 states and 11061 transitions. Second operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:40,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:40,187 INFO L93 Difference]: Finished difference Result 6592 states and 24923 transitions. [2021-10-13 19:38:40,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-13 19:38:40,187 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:38:40,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:40,209 INFO L225 Difference]: With dead ends: 6592 [2021-10-13 19:38:40,209 INFO L226 Difference]: Without dead ends: 6592 [2021-10-13 19:38:40,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2326.7ms TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 19:38:40,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2021-10-13 19:38:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 2926. [2021-10-13 19:38:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2675 states have (on average 4.134579439252336) internal successors, (11060), 2925 states have internal predecessors, (11060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:40,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 11060 transitions. [2021-10-13 19:38:40,293 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 11060 transitions. Word has length 16 [2021-10-13 19:38:40,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:40,293 INFO L470 AbstractCegarLoop]: Abstraction has 2926 states and 11060 transitions. [2021-10-13 19:38:40,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 11060 transitions. [2021-10-13 19:38:40,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:38:40,294 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:40,294 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:40,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:40,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:40,503 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:40,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:40,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1171698655, now seen corresponding path program 2 times [2021-10-13 19:38:40,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:40,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568752516] [2021-10-13 19:38:40,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:40,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:38:41,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:41,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568752516] [2021-10-13 19:38:41,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568752516] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:41,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172775722] [2021-10-13 19:38:41,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:38:41,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:41,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:41,138 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:41,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-13 19:38:42,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:38:42,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:42,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:38:42,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:43,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:38:43,181 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:38:43,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:43,422 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:38:43,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:43,493 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:38:43,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:38:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:38:43,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172775722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:43,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:43,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 25 [2021-10-13 19:38:43,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447706866] [2021-10-13 19:38:43,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:38:43,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:38:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:38:43,535 INFO L87 Difference]: Start difference. First operand 2926 states and 11060 transitions. Second operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:47,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:47,181 INFO L93 Difference]: Finished difference Result 6152 states and 21558 transitions. [2021-10-13 19:38:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:38:47,182 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:38:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:47,199 INFO L225 Difference]: With dead ends: 6152 [2021-10-13 19:38:47,199 INFO L226 Difference]: Without dead ends: 6152 [2021-10-13 19:38:47,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 2644.2ms TimeCoverageRelationStatistics Valid=292, Invalid=1778, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:38:47,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6152 states. [2021-10-13 19:38:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6152 to 3052. [2021-10-13 19:38:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 2801 states have (on average 4.366654766154944) internal successors, (12231), 3051 states have internal predecessors, (12231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:47,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 12231 transitions. [2021-10-13 19:38:47,272 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 12231 transitions. Word has length 17 [2021-10-13 19:38:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:47,273 INFO L470 AbstractCegarLoop]: Abstraction has 3052 states and 12231 transitions. [2021-10-13 19:38:47,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:47,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 12231 transitions. [2021-10-13 19:38:47,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:38:47,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:47,274 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:47,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:47,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:47,481 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:47,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1171698658, now seen corresponding path program 2 times [2021-10-13 19:38:47,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:47,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966723885] [2021-10-13 19:38:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:47,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:38:47,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:47,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966723885] [2021-10-13 19:38:47,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966723885] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:47,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857996621] [2021-10-13 19:38:47,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:38:47,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:47,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:47,897 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:47,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-13 19:38:49,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:38:49,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:49,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:38:49,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:49,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:49,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:49,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:49,820 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:38:49,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:38:51,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-13 19:38:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:51,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:51,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:51,348 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:38:51,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:38:51,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:38:51,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:38:51,639 INFO L354 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2021-10-13 19:38:51,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 50 [2021-10-13 19:38:51,724 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:38:51,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:38:52,036 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:38:52,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:38:52,136 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:38:52,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:38:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:38:52,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857996621] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:52,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:38:52,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:38:52,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844214500] [2021-10-13 19:38:52,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:38:52,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:38:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:38:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:38:52,194 INFO L87 Difference]: Start difference. First operand 3052 states and 12231 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:38:55,527 INFO L93 Difference]: Finished difference Result 4709 states and 16568 transitions. [2021-10-13 19:38:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:38:55,528 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:38:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:38:55,541 INFO L225 Difference]: With dead ends: 4709 [2021-10-13 19:38:55,542 INFO L226 Difference]: Without dead ends: 4709 [2021-10-13 19:38:55,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 2066.9ms TimeCoverageRelationStatistics Valid=210, Invalid=1430, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:38:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2021-10-13 19:38:55,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 2991. [2021-10-13 19:38:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2740 states have (on average 4.301459854014599) internal successors, (11786), 2990 states have internal predecessors, (11786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 11786 transitions. [2021-10-13 19:38:55,612 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 11786 transitions. Word has length 17 [2021-10-13 19:38:55,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:38:55,612 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 11786 transitions. [2021-10-13 19:38:55,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:38:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 11786 transitions. [2021-10-13 19:38:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:38:55,613 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:38:55,613 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:38:55,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-13 19:38:55,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:55,815 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:38:55,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:38:55,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1171698659, now seen corresponding path program 2 times [2021-10-13 19:38:55,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:38:55,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314800917] [2021-10-13 19:38:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:38:55,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:38:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:38:56,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:38:56,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:38:56,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314800917] [2021-10-13 19:38:56,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314800917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:38:56,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109410554] [2021-10-13 19:38:56,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:38:56,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:38:56,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:56,286 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:38:56,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-13 19:38:58,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:38:58,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:38:58,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 19:38:58,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:38:58,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:58,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:58,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:58,304 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:38:58,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:38:59,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-13 19:38:59,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:59,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:59,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:38:59,824 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:38:59,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:39:00,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:39:00,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:39:00,141 INFO L354 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2021-10-13 19:39:00,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 52 [2021-10-13 19:39:00,235 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:39:00,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:00,586 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:39:00,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:00,697 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:39:00,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:39:00,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109410554] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:00,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:00,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:39:00,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330948917] [2021-10-13 19:39:00,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:39:00,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:00,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:39:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:39:00,760 INFO L87 Difference]: Start difference. First operand 2991 states and 11786 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:04,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:04,145 INFO L93 Difference]: Finished difference Result 4644 states and 16133 transitions. [2021-10-13 19:39:04,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:39:04,146 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:39:04,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:04,160 INFO L225 Difference]: With dead ends: 4644 [2021-10-13 19:39:04,161 INFO L226 Difference]: Without dead ends: 4644 [2021-10-13 19:39:04,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 2169.5ms TimeCoverageRelationStatistics Valid=210, Invalid=1430, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:39:04,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2021-10-13 19:39:04,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 2930. [2021-10-13 19:39:04,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2930 states, 2679 states have (on average 4.237775289287048) internal successors, (11353), 2929 states have internal predecessors, (11353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 11353 transitions. [2021-10-13 19:39:04,229 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 11353 transitions. Word has length 17 [2021-10-13 19:39:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:04,230 INFO L470 AbstractCegarLoop]: Abstraction has 2930 states and 11353 transitions. [2021-10-13 19:39:04,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:04,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 11353 transitions. [2021-10-13 19:39:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:39:04,231 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:04,231 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:04,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2021-10-13 19:39:04,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-10-13 19:39:04,432 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:04,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:04,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1171698664, now seen corresponding path program 2 times [2021-10-13 19:39:04,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:04,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371161514] [2021-10-13 19:39:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:04,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:39:04,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:04,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371161514] [2021-10-13 19:39:04,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371161514] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:04,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36610498] [2021-10-13 19:39:04,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:39:04,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:04,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:04,977 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:04,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-13 19:39:06,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:39:06,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:39:06,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:39:06,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:07,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:39:07,183 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:07,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:39:07,466 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:07,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:39:07,555 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:07,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:39:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:39:07,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36610498] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:07,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:07,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 25 [2021-10-13 19:39:07,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876793023] [2021-10-13 19:39:07,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:39:07,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:07,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:39:07,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:39:07,599 INFO L87 Difference]: Start difference. First operand 2930 states and 11353 transitions. Second operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:11,553 INFO L93 Difference]: Finished difference Result 5201 states and 17990 transitions. [2021-10-13 19:39:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:39:11,554 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:39:11,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:11,572 INFO L225 Difference]: With dead ends: 5201 [2021-10-13 19:39:11,573 INFO L226 Difference]: Without dead ends: 5121 [2021-10-13 19:39:11,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 2780.8ms TimeCoverageRelationStatistics Valid=292, Invalid=1778, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:39:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5121 states. [2021-10-13 19:39:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 2829. [2021-10-13 19:39:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2578 states have (on average 4.1667959658650116) internal successors, (10742), 2828 states have internal predecessors, (10742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 10742 transitions. [2021-10-13 19:39:11,646 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 10742 transitions. Word has length 17 [2021-10-13 19:39:11,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:11,646 INFO L470 AbstractCegarLoop]: Abstraction has 2829 states and 10742 transitions. [2021-10-13 19:39:11,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 10742 transitions. [2021-10-13 19:39:11,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:39:11,647 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:11,647 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:11,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2021-10-13 19:39:11,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:11,848 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1262716029, now seen corresponding path program 6 times [2021-10-13 19:39:11,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:11,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954553735] [2021-10-13 19:39:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:11,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:39:12,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:12,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954553735] [2021-10-13 19:39:12,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954553735] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:12,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152371203] [2021-10-13 19:39:12,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 19:39:12,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:12,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:12,395 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:12,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-13 19:39:14,346 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-13 19:39:14,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:39:14,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:39:14,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:14,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:39:14,585 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:14,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:39:14,831 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:39:14,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152371203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:14,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:14,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 26 [2021-10-13 19:39:14,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844442498] [2021-10-13 19:39:14,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:39:14,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:14,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:39:14,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:39:14,834 INFO L87 Difference]: Start difference. First operand 2829 states and 10742 transitions. Second operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:17,558 INFO L93 Difference]: Finished difference Result 6106 states and 23135 transitions. [2021-10-13 19:39:17,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:39:17,558 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:39:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:17,611 INFO L225 Difference]: With dead ends: 6106 [2021-10-13 19:39:17,611 INFO L226 Difference]: Without dead ends: 6106 [2021-10-13 19:39:17,611 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2363.1ms TimeCoverageRelationStatistics Valid=404, Invalid=2458, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 19:39:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2021-10-13 19:39:17,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 2830. [2021-10-13 19:39:17,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2579 states have (on average 4.167506785575805) internal successors, (10748), 2829 states have internal predecessors, (10748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 10748 transitions. [2021-10-13 19:39:17,686 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 10748 transitions. Word has length 17 [2021-10-13 19:39:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:17,687 INFO L470 AbstractCegarLoop]: Abstraction has 2830 states and 10748 transitions. [2021-10-13 19:39:17,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 10748 transitions. [2021-10-13 19:39:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:39:17,688 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:17,688 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:17,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-10-13 19:39:17,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-10-13 19:39:17,894 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:17,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:17,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1262716026, now seen corresponding path program 3 times [2021-10-13 19:39:17,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:17,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140496535] [2021-10-13 19:39:17,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:17,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:39:18,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:18,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140496535] [2021-10-13 19:39:18,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140496535] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:18,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757711883] [2021-10-13 19:39:18,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:39:18,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:18,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:18,426 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:18,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-13 19:39:20,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:39:20,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:39:20,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 19:39:20,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:20,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:20,559 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:39:20,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:39:22,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-10-13 19:39:23,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:23,132 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:39:23,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:39:23,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:23,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:23,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:23,522 INFO L354 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2021-10-13 19:39:23,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2021-10-13 19:39:23,623 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:39:23,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:39:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:39:24,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757711883] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:24,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:24,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:39:24,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527233291] [2021-10-13 19:39:24,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:39:24,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:39:24,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:39:24,027 INFO L87 Difference]: Start difference. First operand 2830 states and 10748 transitions. Second operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:28,044 INFO L93 Difference]: Finished difference Result 3284 states and 12411 transitions. [2021-10-13 19:39:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-13 19:39:28,045 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:39:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:28,053 INFO L225 Difference]: With dead ends: 3284 [2021-10-13 19:39:28,054 INFO L226 Difference]: Without dead ends: 3284 [2021-10-13 19:39:28,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3314.6ms TimeCoverageRelationStatistics Valid=400, Invalid=2680, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:39:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3284 states. [2021-10-13 19:39:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3284 to 2843. [2021-10-13 19:39:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2592 states have (on average 4.158179012345679) internal successors, (10778), 2842 states have internal predecessors, (10778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 10778 transitions. [2021-10-13 19:39:28,108 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 10778 transitions. Word has length 17 [2021-10-13 19:39:28,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:28,108 INFO L470 AbstractCegarLoop]: Abstraction has 2843 states and 10778 transitions. [2021-10-13 19:39:28,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:28,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 10778 transitions. [2021-10-13 19:39:28,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:39:28,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:28,109 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:28,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2021-10-13 19:39:28,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-10-13 19:39:28,310 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:28,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:28,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1262716025, now seen corresponding path program 4 times [2021-10-13 19:39:28,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:28,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598670173] [2021-10-13 19:39:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:28,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:39:28,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:28,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598670173] [2021-10-13 19:39:28,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598670173] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:28,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78800978] [2021-10-13 19:39:28,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:39:28,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:28,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:28,883 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:28,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-13 19:39:30,861 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:39:30,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:39:30,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:39:30,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:31,017 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:39:31,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 118 [2021-10-13 19:39:34,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:39:35,340 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:39:35,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 78 treesize of output 134 [2021-10-13 19:39:35,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:39:35,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:39:35,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:39:35,606 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:39:35,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:39:35,666 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:35,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:39:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:39:35,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78800978] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:35,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:35,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:39:35,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776565570] [2021-10-13 19:39:35,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:39:35,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:39:35,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:39:35,910 INFO L87 Difference]: Start difference. First operand 2843 states and 10778 transitions. Second operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:39,080 INFO L93 Difference]: Finished difference Result 3328 states and 12488 transitions. [2021-10-13 19:39:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-13 19:39:39,080 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:39:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:39,090 INFO L225 Difference]: With dead ends: 3328 [2021-10-13 19:39:39,090 INFO L226 Difference]: Without dead ends: 3328 [2021-10-13 19:39:39,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2491.0ms TimeCoverageRelationStatistics Valid=356, Invalid=2950, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 19:39:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2021-10-13 19:39:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 2857. [2021-10-13 19:39:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2606 states have (on average 4.146201074443591) internal successors, (10805), 2856 states have internal predecessors, (10805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 10805 transitions. [2021-10-13 19:39:39,146 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 10805 transitions. Word has length 17 [2021-10-13 19:39:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:39,146 INFO L470 AbstractCegarLoop]: Abstraction has 2857 states and 10805 transitions. [2021-10-13 19:39:39,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 10805 transitions. [2021-10-13 19:39:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:39:39,147 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:39,147 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:39,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-10-13 19:39:39,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-10-13 19:39:39,348 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:39,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1262716020, now seen corresponding path program 3 times [2021-10-13 19:39:39,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:39,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874035666] [2021-10-13 19:39:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:39,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:39:39,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:39,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874035666] [2021-10-13 19:39:39,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874035666] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:39,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656745046] [2021-10-13 19:39:39,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:39:39,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:39,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:39,833 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:39,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-13 19:39:42,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:39:42,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:39:42,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:39:42,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:42,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-13 19:39:42,485 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:39:42,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:39:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:39:42,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656745046] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:42,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:42,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 27 [2021-10-13 19:39:42,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552448849] [2021-10-13 19:39:42,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:39:42,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:39:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=716, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:39:42,844 INFO L87 Difference]: Start difference. First operand 2857 states and 10805 transitions. Second operand has 29 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:45,638 INFO L93 Difference]: Finished difference Result 5674 states and 21514 transitions. [2021-10-13 19:39:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 19:39:45,639 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:39:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:45,658 INFO L225 Difference]: With dead ends: 5674 [2021-10-13 19:39:45,658 INFO L226 Difference]: Without dead ends: 5674 [2021-10-13 19:39:45,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2442.8ms TimeCoverageRelationStatistics Valid=401, Invalid=1855, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 19:39:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5674 states. [2021-10-13 19:39:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5674 to 2857. [2021-10-13 19:39:45,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2606 states have (on average 4.145049884881043) internal successors, (10802), 2856 states have internal predecessors, (10802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 10802 transitions. [2021-10-13 19:39:45,736 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 10802 transitions. Word has length 17 [2021-10-13 19:39:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:45,737 INFO L470 AbstractCegarLoop]: Abstraction has 2857 states and 10802 transitions. [2021-10-13 19:39:45,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:45,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 10802 transitions. [2021-10-13 19:39:45,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:39:45,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:45,738 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:45,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-10-13 19:39:45,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:45,939 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:45,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:45,940 INFO L82 PathProgramCache]: Analyzing trace with hash -835583493, now seen corresponding path program 2 times [2021-10-13 19:39:45,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:45,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958340587] [2021-10-13 19:39:45,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:45,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:39:46,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:46,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958340587] [2021-10-13 19:39:46,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958340587] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:46,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129697178] [2021-10-13 19:39:46,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:39:46,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:46,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:46,571 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:46,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-10-13 19:39:48,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:39:48,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:39:48,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-13 19:39:48,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:48,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:48,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:48,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:48,728 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:39:48,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:39:50,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:39:50,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:50,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:50,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:39:50,252 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:39:50,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:39:50,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:39:50,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-13 19:39:50,695 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-10-13 19:39:50,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:39:50,795 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:50,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:39:50,916 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:50,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:39:51,018 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:39:51,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:39:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:39:51,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129697178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:51,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:51,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 26 [2021-10-13 19:39:51,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372096024] [2021-10-13 19:39:51,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:39:51,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:51,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:39:51,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:39:51,276 INFO L87 Difference]: Start difference. First operand 2857 states and 10802 transitions. Second operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:54,310 INFO L93 Difference]: Finished difference Result 3153 states and 11877 transitions. [2021-10-13 19:39:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:39:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:39:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:54,316 INFO L225 Difference]: With dead ends: 3153 [2021-10-13 19:39:54,317 INFO L226 Difference]: Without dead ends: 2426 [2021-10-13 19:39:54,317 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2771.4ms TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 19:39:54,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2021-10-13 19:39:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2021-10-13 19:39:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 2175 states have (on average 4.219310344827586) internal successors, (9177), 2425 states have internal predecessors, (9177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 9177 transitions. [2021-10-13 19:39:54,358 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 9177 transitions. Word has length 18 [2021-10-13 19:39:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:54,358 INFO L470 AbstractCegarLoop]: Abstraction has 2426 states and 9177 transitions. [2021-10-13 19:39:54,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 9177 transitions. [2021-10-13 19:39:54,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:39:54,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:54,359 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:54,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2021-10-13 19:39:54,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:54,560 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:54,560 INFO L82 PathProgramCache]: Analyzing trace with hash -489485634, now seen corresponding path program 7 times [2021-10-13 19:39:54,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:54,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661397743] [2021-10-13 19:39:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:54,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:39:54,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:54,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661397743] [2021-10-13 19:39:54,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661397743] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:54,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313664932] [2021-10-13 19:39:54,697 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 19:39:54,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:54,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:54,700 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:54,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-10-13 19:39:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:56,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 19:39:56,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:39:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:39:56,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313664932] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:56,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:39:56,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-13 19:39:56,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675963567] [2021-10-13 19:39:56,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:39:56,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:39:56,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:39:56,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:39:56,942 INFO L87 Difference]: Start difference. First operand 2426 states and 9177 transitions. Second operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:58,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:39:58,360 INFO L93 Difference]: Finished difference Result 10265 states and 36057 transitions. [2021-10-13 19:39:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 19:39:58,361 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:39:58,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:39:58,390 INFO L225 Difference]: With dead ends: 10265 [2021-10-13 19:39:58,390 INFO L226 Difference]: Without dead ends: 10261 [2021-10-13 19:39:58,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 517.7ms TimeCoverageRelationStatistics Valid=459, Invalid=1703, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 19:39:58,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10261 states. [2021-10-13 19:39:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10261 to 3618. [2021-10-13 19:39:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3367 states have (on average 4.474309474309474) internal successors, (15065), 3617 states have internal predecessors, (15065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 15065 transitions. [2021-10-13 19:39:58,493 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 15065 transitions. Word has length 18 [2021-10-13 19:39:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:39:58,494 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 15065 transitions. [2021-10-13 19:39:58,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:39:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 15065 transitions. [2021-10-13 19:39:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:39:58,494 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:39:58,494 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:39:58,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2021-10-13 19:39:58,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,89 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:58,695 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:39:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:39:58,696 INFO L82 PathProgramCache]: Analyzing trace with hash -489486595, now seen corresponding path program 3 times [2021-10-13 19:39:58,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:39:58,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991100396] [2021-10-13 19:39:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:39:58,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:39:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:39:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:39:59,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:39:59,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991100396] [2021-10-13 19:39:59,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991100396] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:39:59,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228507468] [2021-10-13 19:39:59,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:39:59,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:39:59,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:39:59,364 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:39:59,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-10-13 19:40:01,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:40:01,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:01,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:40:01,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:02,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-13 19:40:02,199 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:40:02,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:40:02,640 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:40:02,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:40:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:02,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228507468] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:02,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:02,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 29 [2021-10-13 19:40:02,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668647122] [2021-10-13 19:40:02,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:40:02,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:40:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:40:02,712 INFO L87 Difference]: Start difference. First operand 3618 states and 15065 transitions. Second operand has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:06,348 INFO L93 Difference]: Finished difference Result 6405 states and 25264 transitions. [2021-10-13 19:40:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:40:06,349 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:06,400 INFO L225 Difference]: With dead ends: 6405 [2021-10-13 19:40:06,401 INFO L226 Difference]: Without dead ends: 6405 [2021-10-13 19:40:06,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2651.6ms TimeCoverageRelationStatistics Valid=335, Invalid=1735, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:40:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2021-10-13 19:40:06,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 3678. [2021-10-13 19:40:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3427 states have (on average 4.47446746425445) internal successors, (15334), 3677 states have internal predecessors, (15334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 15334 transitions. [2021-10-13 19:40:06,524 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 15334 transitions. Word has length 18 [2021-10-13 19:40:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:06,525 INFO L470 AbstractCegarLoop]: Abstraction has 3678 states and 15334 transitions. [2021-10-13 19:40:06,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:06,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 15334 transitions. [2021-10-13 19:40:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:06,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:06,525 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:06,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:06,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2021-10-13 19:40:06,741 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:06,745 INFO L82 PathProgramCache]: Analyzing trace with hash -489486592, now seen corresponding path program 3 times [2021-10-13 19:40:06,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:06,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297491558] [2021-10-13 19:40:06,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:06,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:07,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:07,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297491558] [2021-10-13 19:40:07,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297491558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:07,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064654665] [2021-10-13 19:40:07,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:40:07,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:07,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:07,378 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:07,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-10-13 19:40:09,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:40:09,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:09,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:40:09,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:09,812 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:40:09,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:40:11,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:40:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:11,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:11,896 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:40:11,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:40:12,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:40:12,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:40:12,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:40:12,206 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:40:12,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:40:12,275 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:12,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:40:12,582 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:12,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:40:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:12,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064654665] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:12,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:12,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-13 19:40:12,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772250633] [2021-10-13 19:40:12,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:40:12,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:12,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:40:12,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:40:12,640 INFO L87 Difference]: Start difference. First operand 3678 states and 15334 transitions. Second operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:17,230 INFO L93 Difference]: Finished difference Result 4136 states and 16465 transitions. [2021-10-13 19:40:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 19:40:17,231 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:17,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:17,245 INFO L225 Difference]: With dead ends: 4136 [2021-10-13 19:40:17,246 INFO L226 Difference]: Without dead ends: 4136 [2021-10-13 19:40:17,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3251.3ms TimeCoverageRelationStatistics Valid=361, Invalid=3179, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 19:40:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4136 states. [2021-10-13 19:40:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4136 to 3690. [2021-10-13 19:40:17,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3690 states, 3439 states have (on average 4.476010468159348) internal successors, (15393), 3689 states have internal predecessors, (15393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:17,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 15393 transitions. [2021-10-13 19:40:17,319 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 15393 transitions. Word has length 18 [2021-10-13 19:40:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:17,319 INFO L470 AbstractCegarLoop]: Abstraction has 3690 states and 15393 transitions. [2021-10-13 19:40:17,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 15393 transitions. [2021-10-13 19:40:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:17,320 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:17,320 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:17,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:17,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,91 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:17,523 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:17,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:17,524 INFO L82 PathProgramCache]: Analyzing trace with hash -489486591, now seen corresponding path program 3 times [2021-10-13 19:40:17,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:17,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930860499] [2021-10-13 19:40:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:17,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:18,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:18,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930860499] [2021-10-13 19:40:18,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930860499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:18,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788915695] [2021-10-13 19:40:18,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:40:18,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:18,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:18,335 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:18,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-10-13 19:40:20,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:40:20,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:20,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:40:20,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:20,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:20,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:20,736 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:40:20,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:40:22,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:40:22,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:22,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:22,793 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:40:22,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:40:22,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:40:23,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:40:23,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:40:23,078 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:40:23,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:40:23,153 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:23,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:40:23,458 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:23,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:40:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:23,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788915695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:23,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:23,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-13 19:40:23,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273530937] [2021-10-13 19:40:23,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:40:23,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:23,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:40:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:40:23,512 INFO L87 Difference]: Start difference. First operand 3690 states and 15393 transitions. Second operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:28,177 INFO L93 Difference]: Finished difference Result 4088 states and 16317 transitions. [2021-10-13 19:40:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 19:40:28,178 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:28,191 INFO L225 Difference]: With dead ends: 4088 [2021-10-13 19:40:28,191 INFO L226 Difference]: Without dead ends: 4088 [2021-10-13 19:40:28,192 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3364.1ms TimeCoverageRelationStatistics Valid=361, Invalid=3179, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 19:40:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2021-10-13 19:40:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3690. [2021-10-13 19:40:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3690 states, 3439 states have (on average 4.465542308810701) internal successors, (15357), 3689 states have internal predecessors, (15357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 15357 transitions. [2021-10-13 19:40:28,264 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 15357 transitions. Word has length 18 [2021-10-13 19:40:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:28,264 INFO L470 AbstractCegarLoop]: Abstraction has 3690 states and 15357 transitions. [2021-10-13 19:40:28,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:28,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 15357 transitions. [2021-10-13 19:40:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:28,265 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:28,265 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:28,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:28,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:28,478 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:28,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:28,479 INFO L82 PathProgramCache]: Analyzing trace with hash -489486586, now seen corresponding path program 3 times [2021-10-13 19:40:28,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:28,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638548846] [2021-10-13 19:40:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:28,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:40:29,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:29,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638548846] [2021-10-13 19:40:29,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638548846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:29,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489095867] [2021-10-13 19:40:29,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:40:29,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:29,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:29,156 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:29,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-10-13 19:40:31,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:40:31,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:31,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:40:31,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:31,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-13 19:40:31,840 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:40:31,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:40:32,271 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:40:32,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:40:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:32,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489095867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:32,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:32,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 29 [2021-10-13 19:40:32,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74743554] [2021-10-13 19:40:32,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:40:32,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:40:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:40:32,342 INFO L87 Difference]: Start difference. First operand 3690 states and 15357 transitions. Second operand has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:35,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:35,871 INFO L93 Difference]: Finished difference Result 6381 states and 25200 transitions. [2021-10-13 19:40:35,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:40:35,872 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:35,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:35,961 INFO L225 Difference]: With dead ends: 6381 [2021-10-13 19:40:35,961 INFO L226 Difference]: Without dead ends: 6381 [2021-10-13 19:40:35,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2673.1ms TimeCoverageRelationStatistics Valid=335, Invalid=1735, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:40:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2021-10-13 19:40:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 3690. [2021-10-13 19:40:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3690 states, 3439 states have (on average 4.462052922361152) internal successors, (15345), 3689 states have internal predecessors, (15345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 15345 transitions. [2021-10-13 19:40:36,043 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 15345 transitions. Word has length 18 [2021-10-13 19:40:36,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:36,044 INFO L470 AbstractCegarLoop]: Abstraction has 3690 states and 15345 transitions. [2021-10-13 19:40:36,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 15345 transitions. [2021-10-13 19:40:36,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:36,044 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:36,045 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:36,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:36,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-10-13 19:40:36,246 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1452059267, now seen corresponding path program 3 times [2021-10-13 19:40:36,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:36,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768427554] [2021-10-13 19:40:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:36,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:40:36,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:36,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768427554] [2021-10-13 19:40:36,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768427554] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:36,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886262122] [2021-10-13 19:40:36,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:40:36,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:36,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:36,727 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:36,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-13 19:40:38,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:40:38,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:38,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:40:38,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:39,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:40:39,088 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-13 19:40:39,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2021-10-13 19:40:39,203 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:39,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:40:39,293 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:39,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:40:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:40:39,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886262122] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:39,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:39,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 26 [2021-10-13 19:40:39,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261840884] [2021-10-13 19:40:39,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:40:39,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:39,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:40:39,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:40:39,515 INFO L87 Difference]: Start difference. First operand 3690 states and 15345 transitions. Second operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:41,600 INFO L93 Difference]: Finished difference Result 3851 states and 15894 transitions. [2021-10-13 19:40:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:40:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:41,612 INFO L225 Difference]: With dead ends: 3851 [2021-10-13 19:40:41,612 INFO L226 Difference]: Without dead ends: 3851 [2021-10-13 19:40:41,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1587.9ms TimeCoverageRelationStatistics Valid=247, Invalid=1475, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:40:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2021-10-13 19:40:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3713. [2021-10-13 19:40:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3462 states have (on average 4.483535528596187) internal successors, (15522), 3712 states have internal predecessors, (15522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 15522 transitions. [2021-10-13 19:40:41,682 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 15522 transitions. Word has length 18 [2021-10-13 19:40:41,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:41,683 INFO L470 AbstractCegarLoop]: Abstraction has 3713 states and 15522 transitions. [2021-10-13 19:40:41,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 15522 transitions. [2021-10-13 19:40:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:41,683 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:41,683 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:41,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:41,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,94 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:41,884 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:41,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:41,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1452059263, now seen corresponding path program 3 times [2021-10-13 19:40:41,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:41,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806186865] [2021-10-13 19:40:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:41,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:42,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:42,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806186865] [2021-10-13 19:40:42,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806186865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:42,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60808777] [2021-10-13 19:40:42,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:40:42,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:42,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:42,265 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:42,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-13 19:40:44,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:40:44,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:44,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:40:44,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:44,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:44,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:44,645 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:40:44,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:40:46,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:40:46,155 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:46,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:40:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:46,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:46,661 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:40:46,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:40:46,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:40:46,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:40:46,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:40:46,929 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:40:46,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-10-13 19:40:46,997 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:46,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:40:47,054 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:47,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:40:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:47,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60808777] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:47,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:47,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:40:47,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952011662] [2021-10-13 19:40:47,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:40:47,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:47,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:40:47,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:40:47,203 INFO L87 Difference]: Start difference. First operand 3713 states and 15522 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:49,345 INFO L93 Difference]: Finished difference Result 3828 states and 15809 transitions. [2021-10-13 19:40:49,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:40:49,346 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:49,356 INFO L225 Difference]: With dead ends: 3828 [2021-10-13 19:40:49,356 INFO L226 Difference]: Without dead ends: 3828 [2021-10-13 19:40:49,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1602.3ms TimeCoverageRelationStatistics Valid=204, Invalid=1278, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:40:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2021-10-13 19:40:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3713. [2021-10-13 19:40:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3462 states have (on average 4.476891969959561) internal successors, (15499), 3712 states have internal predecessors, (15499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 15499 transitions. [2021-10-13 19:40:49,421 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 15499 transitions. Word has length 18 [2021-10-13 19:40:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:49,421 INFO L470 AbstractCegarLoop]: Abstraction has 3713 states and 15499 transitions. [2021-10-13 19:40:49,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 15499 transitions. [2021-10-13 19:40:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:49,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:49,422 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:49,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:49,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-10-13 19:40:49,623 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:49,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:49,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1452059262, now seen corresponding path program 2 times [2021-10-13 19:40:49,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:49,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860822206] [2021-10-13 19:40:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:49,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:49,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:49,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860822206] [2021-10-13 19:40:49,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860822206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:49,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855273483] [2021-10-13 19:40:49,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:40:49,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:49,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:49,992 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:49,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-13 19:40:52,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:40:52,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:40:52,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:40:52,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:40:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:52,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:52,294 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:40:52,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:40:53,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:40:54,146 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:54,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:40:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:40:54,368 INFO L354 Elim1Store]: treesize reduction 136, result has 34.9 percent of original size [2021-10-13 19:40:54,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:40:54,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:40:54,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:40:54,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:40:54,642 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:40:54,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2021-10-13 19:40:54,704 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:54,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:40:54,770 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:40:54,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:40:54,937 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:40:54,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855273483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:54,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:40:54,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2021-10-13 19:40:54,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332687397] [2021-10-13 19:40:54,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 19:40:54,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:40:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 19:40:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:40:54,939 INFO L87 Difference]: Start difference. First operand 3713 states and 15499 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:57,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:40:57,001 INFO L93 Difference]: Finished difference Result 3805 states and 15724 transitions. [2021-10-13 19:40:57,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:40:57,001 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:40:57,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:40:57,012 INFO L225 Difference]: With dead ends: 3805 [2021-10-13 19:40:57,013 INFO L226 Difference]: Without dead ends: 3805 [2021-10-13 19:40:57,013 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1605.2ms TimeCoverageRelationStatistics Valid=204, Invalid=1278, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:40:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2021-10-13 19:40:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3713. [2021-10-13 19:40:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3462 states have (on average 4.470248411322935) internal successors, (15476), 3712 states have internal predecessors, (15476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 15476 transitions. [2021-10-13 19:40:57,089 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 15476 transitions. Word has length 18 [2021-10-13 19:40:57,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:40:57,089 INFO L470 AbstractCegarLoop]: Abstraction has 3713 states and 15476 transitions. [2021-10-13 19:40:57,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:40:57,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 15476 transitions. [2021-10-13 19:40:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:40:57,089 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:40:57,089 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:40:57,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-10-13 19:40:57,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,96 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:57,290 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:40:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:40:57,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1452059272, now seen corresponding path program 2 times [2021-10-13 19:40:57,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:40:57,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823539118] [2021-10-13 19:40:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:40:57,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:40:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:40:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:40:58,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:40:58,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823539118] [2021-10-13 19:40:58,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823539118] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:40:58,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260721563] [2021-10-13 19:40:58,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:40:58,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:40:58,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:40:58,068 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:40:58,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-13 19:41:00,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:41:00,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:41:00,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 19:41:00,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:41:00,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:41:00,526 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:41:00,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:41:00,595 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:41:00,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:41:00,655 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:41:00,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:41:00,913 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:41:00,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260721563] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:00,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:41:00,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 26 [2021-10-13 19:41:00,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485348527] [2021-10-13 19:41:00,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:41:00,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:41:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:41:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:41:00,915 INFO L87 Difference]: Start difference. First operand 3713 states and 15476 transitions. Second operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:41:03,081 INFO L93 Difference]: Finished difference Result 3782 states and 15639 transitions. [2021-10-13 19:41:03,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:41:03,081 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:41:03,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:41:03,093 INFO L225 Difference]: With dead ends: 3782 [2021-10-13 19:41:03,093 INFO L226 Difference]: Without dead ends: 3782 [2021-10-13 19:41:03,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1837.1ms TimeCoverageRelationStatistics Valid=241, Invalid=1481, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:41:03,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-10-13 19:41:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3713. [2021-10-13 19:41:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3462 states have (on average 4.463604852686308) internal successors, (15453), 3712 states have internal predecessors, (15453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 15453 transitions. [2021-10-13 19:41:03,167 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 15453 transitions. Word has length 18 [2021-10-13 19:41:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:41:03,168 INFO L470 AbstractCegarLoop]: Abstraction has 3713 states and 15453 transitions. [2021-10-13 19:41:03,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:03,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 15453 transitions. [2021-10-13 19:41:03,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:41:03,168 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:41:03,169 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:41:03,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Forceful destruction successful, exit code 0 [2021-10-13 19:41:03,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-10-13 19:41:03,369 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:41:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:41:03,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1444388860, now seen corresponding path program 5 times [2021-10-13 19:41:03,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:41:03,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987459188] [2021-10-13 19:41:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:41:03,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:41:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:41:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:41:04,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:41:04,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987459188] [2021-10-13 19:41:04,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987459188] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:04,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020525165] [2021-10-13 19:41:04,549 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:41:04,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:04,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:41:04,550 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:41:04,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-13 19:41:06,833 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-13 19:41:06,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:41:06,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-13 19:41:06,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:41:07,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-13 19:41:07,279 INFO L354 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2021-10-13 19:41:07,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-13 19:41:07,380 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-10-13 19:41:07,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 19:41:07,505 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-10-13 19:41:07,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 47 [2021-10-13 19:41:07,658 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:07,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:07,854 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:07,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:08,043 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:08,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:41:08,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020525165] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:08,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:41:08,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:41:08,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425233281] [2021-10-13 19:41:08,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:41:08,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:41:08,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:41:08,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:41:08,250 INFO L87 Difference]: Start difference. First operand 3713 states and 15453 transitions. Second operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:41:11,167 INFO L93 Difference]: Finished difference Result 6928 states and 27786 transitions. [2021-10-13 19:41:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:41:11,168 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:41:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:41:11,188 INFO L225 Difference]: With dead ends: 6928 [2021-10-13 19:41:11,188 INFO L226 Difference]: Without dead ends: 6928 [2021-10-13 19:41:11,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2713.2ms TimeCoverageRelationStatistics Valid=208, Invalid=1432, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:41:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2021-10-13 19:41:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 4712. [2021-10-13 19:41:11,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4712 states, 4461 states have (on average 4.599193006052454) internal successors, (20517), 4711 states have internal predecessors, (20517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:11,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4712 states to 4712 states and 20517 transitions. [2021-10-13 19:41:11,291 INFO L78 Accepts]: Start accepts. Automaton has 4712 states and 20517 transitions. Word has length 18 [2021-10-13 19:41:11,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:41:11,291 INFO L470 AbstractCegarLoop]: Abstraction has 4712 states and 20517 transitions. [2021-10-13 19:41:11,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:11,291 INFO L276 IsEmpty]: Start isEmpty. Operand 4712 states and 20517 transitions. [2021-10-13 19:41:11,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:41:11,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:41:11,292 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:41:11,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-10-13 19:41:11,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,98 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:11,500 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:41:11,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:41:11,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1444388858, now seen corresponding path program 4 times [2021-10-13 19:41:11,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:41:11,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861318024] [2021-10-13 19:41:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:41:11,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:41:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:41:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:41:12,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:41:12,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861318024] [2021-10-13 19:41:12,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861318024] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:12,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757739961] [2021-10-13 19:41:12,749 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:41:12,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:12,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:41:12,750 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:41:12,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-13 19:41:15,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:41:15,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:41:15,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-13 19:41:15,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:41:15,320 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:41:15,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 108 [2021-10-13 19:41:21,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:21,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:21,285 INFO L354 Elim1Store]: treesize reduction 144, result has 31.1 percent of original size [2021-10-13 19:41:21,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 80 treesize of output 128 [2021-10-13 19:41:21,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-13 19:41:21,584 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-13 19:41:21,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:41:21,704 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-10-13 19:41:21,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2021-10-13 19:41:21,845 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-10-13 19:41:21,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 55 [2021-10-13 19:41:22,014 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:22,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 67 [2021-10-13 19:41:22,211 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:22,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 67 [2021-10-13 19:41:22,381 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:22,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-10-13 19:41:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:41:22,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757739961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:22,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:41:22,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:41:22,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448099088] [2021-10-13 19:41:22,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:41:22,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:41:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:41:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:41:22,592 INFO L87 Difference]: Start difference. First operand 4712 states and 20517 transitions. Second operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:27,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:41:27,897 INFO L93 Difference]: Finished difference Result 9816 states and 39954 transitions. [2021-10-13 19:41:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:41:27,898 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:41:27,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:41:27,931 INFO L225 Difference]: With dead ends: 9816 [2021-10-13 19:41:27,932 INFO L226 Difference]: Without dead ends: 9816 [2021-10-13 19:41:27,932 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 4822.2ms TimeCoverageRelationStatistics Valid=264, Invalid=1898, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 19:41:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9816 states. [2021-10-13 19:41:28,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9816 to 5196. [2021-10-13 19:41:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 4945 states have (on average 4.820424671385237) internal successors, (23837), 5195 states have internal predecessors, (23837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 23837 transitions. [2021-10-13 19:41:28,115 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 23837 transitions. Word has length 18 [2021-10-13 19:41:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:41:28,115 INFO L470 AbstractCegarLoop]: Abstraction has 5196 states and 23837 transitions. [2021-10-13 19:41:28,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 23837 transitions. [2021-10-13 19:41:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:41:28,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:41:28,116 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:41:28,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-10-13 19:41:28,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-10-13 19:41:28,317 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:41:28,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:41:28,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1444388853, now seen corresponding path program 4 times [2021-10-13 19:41:28,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:41:28,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670805811] [2021-10-13 19:41:28,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:41:28,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:41:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:41:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:41:29,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:41:29,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670805811] [2021-10-13 19:41:29,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670805811] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:29,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834894958] [2021-10-13 19:41:29,332 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:41:29,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:29,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:41:29,333 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:41:29,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-13 19:41:31,681 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:41:31,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:41:31,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-13 19:41:31,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:41:31,835 INFO L354 Elim1Store]: treesize reduction 373, result has 11.8 percent of original size [2021-10-13 19:41:31,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 127 treesize of output 153 [2021-10-13 19:41:33,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:41:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:34,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-13 19:41:34,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:34,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:34,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:34,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2021-10-13 19:41:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:35,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:35,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:35,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:35,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-13 19:41:36,267 INFO L354 Elim1Store]: treesize reduction 112, result has 39.5 percent of original size [2021-10-13 19:41:36,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 76 treesize of output 132 [2021-10-13 19:41:36,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-10-13 19:41:36,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2021-10-13 19:41:36,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2021-10-13 19:41:36,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:36,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:36,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 19:41:36,997 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-10-13 19:41:36,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 74 [2021-10-13 19:41:37,145 INFO L354 Elim1Store]: treesize reduction 96, result has 23.2 percent of original size [2021-10-13 19:41:37,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 64 [2021-10-13 19:41:37,304 INFO L354 Elim1Store]: treesize reduction 96, result has 23.2 percent of original size [2021-10-13 19:41:37,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 64 [2021-10-13 19:41:37,461 INFO L354 Elim1Store]: treesize reduction 96, result has 23.2 percent of original size [2021-10-13 19:41:37,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 60 [2021-10-13 19:41:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:41:37,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834894958] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:37,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:41:37,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 25 [2021-10-13 19:41:37,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977118873] [2021-10-13 19:41:37,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:41:37,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:41:37,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:41:37,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:41:37,644 INFO L87 Difference]: Start difference. First operand 5196 states and 23837 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:41:41,933 INFO L93 Difference]: Finished difference Result 11455 states and 47423 transitions. [2021-10-13 19:41:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 19:41:41,933 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:41:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:41:41,982 INFO L225 Difference]: With dead ends: 11455 [2021-10-13 19:41:41,982 INFO L226 Difference]: Without dead ends: 11455 [2021-10-13 19:41:41,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 3776.9ms TimeCoverageRelationStatistics Valid=317, Invalid=1489, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:41:41,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11455 states. [2021-10-13 19:41:42,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11455 to 5196. [2021-10-13 19:41:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 4945 states have (on average 4.771486349848332) internal successors, (23595), 5195 states have internal predecessors, (23595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 23595 transitions. [2021-10-13 19:41:42,137 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 23595 transitions. Word has length 18 [2021-10-13 19:41:42,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:41:42,137 INFO L470 AbstractCegarLoop]: Abstraction has 5196 states and 23595 transitions. [2021-10-13 19:41:42,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:42,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 23595 transitions. [2021-10-13 19:41:42,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:41:42,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:41:42,138 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:41:42,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-13 19:41:42,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103,100 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:42,339 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:41:42,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:41:42,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1444388852, now seen corresponding path program 4 times [2021-10-13 19:41:42,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:41:42,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302790360] [2021-10-13 19:41:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:41:42,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:41:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:41:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:41:43,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:41:43,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302790360] [2021-10-13 19:41:43,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302790360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:43,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519033408] [2021-10-13 19:41:43,687 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:41:43,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:43,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:41:43,690 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:41:43,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-10-13 19:41:46,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:41:46,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:41:46,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-13 19:41:46,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:41:46,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:46,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:46,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:46,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:46,365 INFO L354 Elim1Store]: treesize reduction 330, result has 13.2 percent of original size [2021-10-13 19:41:46,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 113 [2021-10-13 19:41:46,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-13 19:41:47,466 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-13 19:41:47,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-13 19:41:48,040 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-13 19:41:48,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-10-13 19:41:48,705 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-10-13 19:41:48,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 47 [2021-10-13 19:41:49,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:49,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:41:49,472 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:41:49,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 68 treesize of output 124 [2021-10-13 19:41:49,763 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-10-13 19:41:49,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:49,940 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-10-13 19:41:49,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:50,102 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-10-13 19:41:50,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:50,296 INFO L354 Elim1Store]: treesize reduction 196, result has 15.2 percent of original size [2021-10-13 19:41:50,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 72 [2021-10-13 19:41:50,460 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:50,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:50,635 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:50,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 59 [2021-10-13 19:41:50,792 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-10-13 19:41:50,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 58 [2021-10-13 19:41:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:41:50,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519033408] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:50,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:41:50,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 25 [2021-10-13 19:41:50,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838673920] [2021-10-13 19:41:50,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 19:41:50,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:41:50,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 19:41:50,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:41:50,976 INFO L87 Difference]: Start difference. First operand 5196 states and 23595 transitions. Second operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:41:55,172 INFO L93 Difference]: Finished difference Result 8364 states and 34302 transitions. [2021-10-13 19:41:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:41:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:41:55,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:41:55,200 INFO L225 Difference]: With dead ends: 8364 [2021-10-13 19:41:55,201 INFO L226 Difference]: Without dead ends: 8364 [2021-10-13 19:41:55,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3686.5ms TimeCoverageRelationStatistics Valid=233, Invalid=1659, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:41:55,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8364 states. [2021-10-13 19:41:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8364 to 5196. [2021-10-13 19:41:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 4945 states have (on average 4.67360970677452) internal successors, (23111), 5195 states have internal predecessors, (23111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 23111 transitions. [2021-10-13 19:41:55,325 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 23111 transitions. Word has length 18 [2021-10-13 19:41:55,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:41:55,325 INFO L470 AbstractCegarLoop]: Abstraction has 5196 states and 23111 transitions. [2021-10-13 19:41:55,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 23111 transitions. [2021-10-13 19:41:55,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:41:55,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:41:55,326 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:41:55,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2021-10-13 19:41:55,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-10-13 19:41:55,527 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:41:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:41:55,528 INFO L82 PathProgramCache]: Analyzing trace with hash -119073500, now seen corresponding path program 4 times [2021-10-13 19:41:55,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:41:55,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245231357] [2021-10-13 19:41:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:41:55,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:41:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:41:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:41:55,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:41:55,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245231357] [2021-10-13 19:41:55,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245231357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:55,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105964277] [2021-10-13 19:41:55,670 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:41:55,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:55,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:41:55,671 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:41:55,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-10-13 19:41:58,215 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:41:58,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:41:58,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 19:41:58,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:41:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:41:58,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105964277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:58,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:41:58,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-10-13 19:41:58,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52947834] [2021-10-13 19:41:58,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:41:58,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:41:58,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:41:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:41:58,466 INFO L87 Difference]: Start difference. First operand 5196 states and 23111 transitions. Second operand has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:58,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:41:58,814 INFO L93 Difference]: Finished difference Result 6401 states and 26891 transitions. [2021-10-13 19:41:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:41:58,815 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:41:58,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:41:58,834 INFO L225 Difference]: With dead ends: 6401 [2021-10-13 19:41:58,834 INFO L226 Difference]: Without dead ends: 6401 [2021-10-13 19:41:58,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 319.7ms TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:41:58,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6401 states. [2021-10-13 19:41:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6401 to 4277. [2021-10-13 19:41:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4026 states have (on average 4.47143566815698) internal successors, (18002), 4276 states have internal predecessors, (18002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 18002 transitions. [2021-10-13 19:41:58,926 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 18002 transitions. Word has length 18 [2021-10-13 19:41:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:41:58,926 INFO L470 AbstractCegarLoop]: Abstraction has 4277 states and 18002 transitions. [2021-10-13 19:41:58,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:41:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 18002 transitions. [2021-10-13 19:41:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:41:58,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:41:58,927 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:41:58,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2021-10-13 19:41:59,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,102 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:59,128 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:41:59,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:41:59,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2064159525, now seen corresponding path program 4 times [2021-10-13 19:41:59,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:41:59,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586533087] [2021-10-13 19:41:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:41:59,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:41:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:41:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:41:59,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:41:59,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586533087] [2021-10-13 19:41:59,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586533087] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:41:59,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103603664] [2021-10-13 19:41:59,262 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:41:59,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:41:59,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:41:59,263 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:41:59,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-10-13 19:42:01,732 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:42:01,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:01,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 19:42:01,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:42:02,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103603664] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:02,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:02,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-13 19:42:02,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005864599] [2021-10-13 19:42:02,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:42:02,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:02,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:42:02,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:42:02,005 INFO L87 Difference]: Start difference. First operand 4277 states and 18002 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:03,672 INFO L93 Difference]: Finished difference Result 7929 states and 30576 transitions. [2021-10-13 19:42:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 19:42:03,673 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:03,698 INFO L225 Difference]: With dead ends: 7929 [2021-10-13 19:42:03,698 INFO L226 Difference]: Without dead ends: 7917 [2021-10-13 19:42:03,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 687.2ms TimeCoverageRelationStatistics Valid=424, Invalid=1556, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 19:42:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2021-10-13 19:42:03,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 4284. [2021-10-13 19:42:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4033 states have (on average 4.4277212992809325) internal successors, (17857), 4283 states have internal predecessors, (17857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 17857 transitions. [2021-10-13 19:42:03,805 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 17857 transitions. Word has length 19 [2021-10-13 19:42:03,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:03,805 INFO L470 AbstractCegarLoop]: Abstraction has 4284 states and 17857 transitions. [2021-10-13 19:42:03,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:03,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 17857 transitions. [2021-10-13 19:42:03,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:42:03,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:03,806 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:03,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2021-10-13 19:42:04,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-10-13 19:42:04,007 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:04,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:04,007 INFO L82 PathProgramCache]: Analyzing trace with hash -2064159990, now seen corresponding path program 2 times [2021-10-13 19:42:04,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:04,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733002282] [2021-10-13 19:42:04,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:04,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:42:04,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:04,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733002282] [2021-10-13 19:42:04,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733002282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:04,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114377432] [2021-10-13 19:42:04,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:42:04,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:04,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:04,783 INFO L229 MonitoredProcess]: Starting monitored process 104 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:04,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2021-10-13 19:42:07,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:42:07,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:07,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:42:07,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:07,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:42:07,583 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:07,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:07,656 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:07,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:42:07,728 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:07,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:42:07,946 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:07,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:42:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:42:07,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114377432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:07,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:07,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 28 [2021-10-13 19:42:07,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630110166] [2021-10-13 19:42:07,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:42:07,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:42:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:42:07,988 INFO L87 Difference]: Start difference. First operand 4284 states and 17857 transitions. Second operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:10,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:10,776 INFO L93 Difference]: Finished difference Result 6120 states and 23817 transitions. [2021-10-13 19:42:10,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:42:10,776 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:10,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:10,794 INFO L225 Difference]: With dead ends: 6120 [2021-10-13 19:42:10,795 INFO L226 Difference]: Without dead ends: 6120 [2021-10-13 19:42:10,795 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2309.6ms TimeCoverageRelationStatistics Valid=235, Invalid=1571, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:42:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2021-10-13 19:42:10,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 4332. [2021-10-13 19:42:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4081 states have (on average 4.5628522420975255) internal successors, (18621), 4331 states have internal predecessors, (18621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 18621 transitions. [2021-10-13 19:42:10,896 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 18621 transitions. Word has length 19 [2021-10-13 19:42:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:10,896 INFO L470 AbstractCegarLoop]: Abstraction has 4332 states and 18621 transitions. [2021-10-13 19:42:10,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 18621 transitions. [2021-10-13 19:42:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:42:10,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:10,897 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:10,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2021-10-13 19:42:11,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,104 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:11,098 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -2064159986, now seen corresponding path program 2 times [2021-10-13 19:42:11,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:11,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803080786] [2021-10-13 19:42:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:11,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:42:11,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:11,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803080786] [2021-10-13 19:42:11,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803080786] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:11,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543713161] [2021-10-13 19:42:11,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:42:11,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:11,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:11,544 INFO L229 MonitoredProcess]: Starting monitored process 105 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:11,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2021-10-13 19:42:14,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:42:14,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:14,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:42:14,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:14,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:14,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:14,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:14,241 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:42:14,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:42:15,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:42:15,526 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:15,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:15,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:15,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:15,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:16,073 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:42:16,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:42:16,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:42:16,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:42:16,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:42:16,370 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:42:16,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:42:16,447 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:16,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:42:16,522 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:16,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:42:16,744 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:16,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:42:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:42:16,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543713161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:16,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:16,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-13 19:42:16,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910158626] [2021-10-13 19:42:16,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:42:16,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:16,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:42:16,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:42:16,789 INFO L87 Difference]: Start difference. First operand 4332 states and 18621 transitions. Second operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:19,356 INFO L93 Difference]: Finished difference Result 5762 states and 22277 transitions. [2021-10-13 19:42:19,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:42:19,356 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:19,372 INFO L225 Difference]: With dead ends: 5762 [2021-10-13 19:42:19,372 INFO L226 Difference]: Without dead ends: 5762 [2021-10-13 19:42:19,372 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1865.8ms TimeCoverageRelationStatistics Valid=207, Invalid=1433, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:42:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2021-10-13 19:42:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 4177. [2021-10-13 19:42:19,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4177 states, 3926 states have (on average 4.489556800815079) internal successors, (17626), 4176 states have internal predecessors, (17626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:19,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4177 states to 4177 states and 17626 transitions. [2021-10-13 19:42:19,455 INFO L78 Accepts]: Start accepts. Automaton has 4177 states and 17626 transitions. Word has length 19 [2021-10-13 19:42:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:19,455 INFO L470 AbstractCegarLoop]: Abstraction has 4177 states and 17626 transitions. [2021-10-13 19:42:19,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:19,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4177 states and 17626 transitions. [2021-10-13 19:42:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:42:19,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:19,456 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:19,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2021-10-13 19:42:19,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,105 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:19,657 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:19,658 INFO L82 PathProgramCache]: Analyzing trace with hash -2064159985, now seen corresponding path program 2 times [2021-10-13 19:42:19,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:19,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969717367] [2021-10-13 19:42:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:19,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:42:20,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:20,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969717367] [2021-10-13 19:42:20,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969717367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:20,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946169537] [2021-10-13 19:42:20,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:42:20,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:20,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:20,131 INFO L229 MonitoredProcess]: Starting monitored process 106 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:20,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2021-10-13 19:42:22,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:42:22,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:22,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:42:22,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:22,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:22,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:22,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:22,881 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:42:22,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:42:24,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:42:24,229 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:24,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:42:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:24,673 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:42:24,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:42:24,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:42:24,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:42:24,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:42:25,001 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:42:25,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 19:42:25,075 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:25,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:25,154 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:25,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:25,393 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:25,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:42:25,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946169537] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:25,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:25,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2021-10-13 19:42:25,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630143103] [2021-10-13 19:42:25,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 19:42:25,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:25,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 19:42:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:42:25,443 INFO L87 Difference]: Start difference. First operand 4177 states and 17626 transitions. Second operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:28,063 INFO L93 Difference]: Finished difference Result 5404 states and 20737 transitions. [2021-10-13 19:42:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:42:28,063 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:28,079 INFO L225 Difference]: With dead ends: 5404 [2021-10-13 19:42:28,079 INFO L226 Difference]: Without dead ends: 5404 [2021-10-13 19:42:28,079 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1978.0ms TimeCoverageRelationStatistics Valid=207, Invalid=1433, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:42:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-10-13 19:42:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 4022. [2021-10-13 19:42:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4022 states, 3771 states have (on average 4.410236011667992) internal successors, (16631), 4021 states have internal predecessors, (16631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4022 states to 4022 states and 16631 transitions. [2021-10-13 19:42:28,162 INFO L78 Accepts]: Start accepts. Automaton has 4022 states and 16631 transitions. Word has length 19 [2021-10-13 19:42:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:28,162 INFO L470 AbstractCegarLoop]: Abstraction has 4022 states and 16631 transitions. [2021-10-13 19:42:28,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 4022 states and 16631 transitions. [2021-10-13 19:42:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:42:28,163 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:28,163 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:28,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2021-10-13 19:42:28,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,106 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:28,364 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:28,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:28,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2064159995, now seen corresponding path program 2 times [2021-10-13 19:42:28,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:28,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327144117] [2021-10-13 19:42:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:28,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:42:29,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:29,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327144117] [2021-10-13 19:42:29,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327144117] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:29,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529411319] [2021-10-13 19:42:29,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:42:29,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:29,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:29,145 INFO L229 MonitoredProcess]: Starting monitored process 107 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:29,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2021-10-13 19:42:31,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:42:31,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:31,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:42:31,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:31,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:42:32,067 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:32,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:42:32,138 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:32,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:32,211 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:32,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:32,413 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:32,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:42:32,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529411319] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:32,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:32,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 28 [2021-10-13 19:42:32,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733749960] [2021-10-13 19:42:32,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:42:32,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:42:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:42:32,457 INFO L87 Difference]: Start difference. First operand 4022 states and 16631 transitions. Second operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:34,891 INFO L93 Difference]: Finished difference Result 5046 states and 19197 transitions. [2021-10-13 19:42:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:42:34,892 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:34,906 INFO L225 Difference]: With dead ends: 5046 [2021-10-13 19:42:34,907 INFO L226 Difference]: Without dead ends: 5022 [2021-10-13 19:42:34,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1923.5ms TimeCoverageRelationStatistics Valid=236, Invalid=1570, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:42:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2021-10-13 19:42:35,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3843. [2021-10-13 19:42:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 3592 states have (on average 4.310133630289532) internal successors, (15482), 3842 states have internal predecessors, (15482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 15482 transitions. [2021-10-13 19:42:35,019 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 15482 transitions. Word has length 19 [2021-10-13 19:42:35,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:35,019 INFO L470 AbstractCegarLoop]: Abstraction has 3843 states and 15482 transitions. [2021-10-13 19:42:35,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 15482 transitions. [2021-10-13 19:42:35,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:42:35,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:35,020 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:35,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2021-10-13 19:42:35,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,107 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:35,225 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:35,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:35,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1826373538, now seen corresponding path program 1 times [2021-10-13 19:42:35,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:35,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432811339] [2021-10-13 19:42:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:35,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:42:36,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:36,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432811339] [2021-10-13 19:42:36,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432811339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:36,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186514181] [2021-10-13 19:42:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:36,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:36,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:36,605 INFO L229 MonitoredProcess]: Starting monitored process 108 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:36,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2021-10-13 19:42:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:39,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-13 19:42:39,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:39,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:39,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:39,279 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:42:39,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 100 [2021-10-13 19:42:40,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:42:40,886 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-10-13 19:42:40,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:42:41,439 INFO L354 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2021-10-13 19:42:41,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 65 [2021-10-13 19:42:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:42:42,209 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:42:42,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 68 treesize of output 124 [2021-10-13 19:42:42,482 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-13 19:42:42,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 60 [2021-10-13 19:42:42,636 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-13 19:42:42,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 62 [2021-10-13 19:42:42,776 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-13 19:42:42,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 62 [2021-10-13 19:42:42,949 INFO L354 Elim1Store]: treesize reduction 148, result has 16.9 percent of original size [2021-10-13 19:42:42,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 78 [2021-10-13 19:42:43,132 INFO L354 Elim1Store]: treesize reduction 136, result has 18.1 percent of original size [2021-10-13 19:42:43,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-10-13 19:42:43,313 INFO L354 Elim1Store]: treesize reduction 136, result has 18.1 percent of original size [2021-10-13 19:42:43,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 64 [2021-10-13 19:42:43,483 INFO L354 Elim1Store]: treesize reduction 136, result has 18.1 percent of original size [2021-10-13 19:42:43,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 64 [2021-10-13 19:42:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:42:43,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186514181] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:43,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:43,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 27 [2021-10-13 19:42:43,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158633351] [2021-10-13 19:42:43,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:42:43,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:42:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:42:43,820 INFO L87 Difference]: Start difference. First operand 3843 states and 15482 transitions. Second operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:48,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:48,266 INFO L93 Difference]: Finished difference Result 4848 states and 19331 transitions. [2021-10-13 19:42:48,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 19:42:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:48,280 INFO L225 Difference]: With dead ends: 4848 [2021-10-13 19:42:48,280 INFO L226 Difference]: Without dead ends: 4848 [2021-10-13 19:42:48,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 3988.2ms TimeCoverageRelationStatistics Valid=247, Invalid=1823, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:42:48,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4848 states. [2021-10-13 19:42:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4848 to 3711. [2021-10-13 19:42:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 3460 states have (on average 4.265606936416185) internal successors, (14759), 3710 states have internal predecessors, (14759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 14759 transitions. [2021-10-13 19:42:48,383 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 14759 transitions. Word has length 19 [2021-10-13 19:42:48,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:48,383 INFO L470 AbstractCegarLoop]: Abstraction has 3711 states and 14759 transitions. [2021-10-13 19:42:48,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 14759 transitions. [2021-10-13 19:42:48,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:42:48,384 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:48,384 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:48,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2021-10-13 19:42:48,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-10-13 19:42:48,585 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:48,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:48,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1760105021, now seen corresponding path program 5 times [2021-10-13 19:42:48,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:48,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962085269] [2021-10-13 19:42:48,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:48,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:42:49,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:49,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962085269] [2021-10-13 19:42:49,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962085269] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:49,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709348174] [2021-10-13 19:42:49,149 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:42:49,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:49,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:49,151 INFO L229 MonitoredProcess]: Starting monitored process 109 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:49,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2021-10-13 19:42:51,835 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 19:42:51,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:51,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:42:51,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:42:52,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:42:52,086 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:52,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:42:52,147 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:42:52,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:42:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 19:42:52,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709348174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:52,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:42:52,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 29 [2021-10-13 19:42:52,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591543220] [2021-10-13 19:42:52,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 19:42:52,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:42:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 19:42:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=846, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:42:52,369 INFO L87 Difference]: Start difference. First operand 3711 states and 14759 transitions. Second operand has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:42:55,913 INFO L93 Difference]: Finished difference Result 8522 states and 34060 transitions. [2021-10-13 19:42:55,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 19:42:55,914 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:42:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:42:55,944 INFO L225 Difference]: With dead ends: 8522 [2021-10-13 19:42:55,944 INFO L226 Difference]: Without dead ends: 8522 [2021-10-13 19:42:55,944 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 3149.9ms TimeCoverageRelationStatistics Valid=647, Invalid=3513, Unknown=0, NotChecked=0, Total=4160 [2021-10-13 19:42:55,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8522 states. [2021-10-13 19:42:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8522 to 3711. [2021-10-13 19:42:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 3460 states have (on average 4.2653179190751445) internal successors, (14758), 3710 states have internal predecessors, (14758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 14758 transitions. [2021-10-13 19:42:56,049 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 14758 transitions. Word has length 19 [2021-10-13 19:42:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:42:56,049 INFO L470 AbstractCegarLoop]: Abstraction has 3711 states and 14758 transitions. [2021-10-13 19:42:56,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:42:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 14758 transitions. [2021-10-13 19:42:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:42:56,050 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:42:56,050 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:42:56,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2021-10-13 19:42:56,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-10-13 19:42:56,251 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:42:56,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:42:56,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2049746377, now seen corresponding path program 3 times [2021-10-13 19:42:56,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:42:56,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621837907] [2021-10-13 19:42:56,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:42:56,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:42:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:42:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:42:56,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:42:56,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621837907] [2021-10-13 19:42:56,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621837907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:42:56,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233605630] [2021-10-13 19:42:56,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:42:56,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:42:56,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:42:56,963 INFO L229 MonitoredProcess]: Starting monitored process 110 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:42:56,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2021-10-13 19:42:59,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:42:59,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:42:59,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:42:59,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:43:00,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-13 19:43:00,351 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:43:00,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:43:00,851 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:43:00,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:43:00,970 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:43:00,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-10-13 19:43:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:01,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233605630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:01,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:43:01,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 31 [2021-10-13 19:43:01,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083371736] [2021-10-13 19:43:01,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:43:01,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:43:01,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:43:01,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:43:01,043 INFO L87 Difference]: Start difference. First operand 3711 states and 14758 transitions. Second operand has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:04,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:43:04,432 INFO L93 Difference]: Finished difference Result 4336 states and 16405 transitions. [2021-10-13 19:43:04,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:43:04,433 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:43:04,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:43:04,444 INFO L225 Difference]: With dead ends: 4336 [2021-10-13 19:43:04,444 INFO L226 Difference]: Without dead ends: 4336 [2021-10-13 19:43:04,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3016.1ms TimeCoverageRelationStatistics Valid=313, Invalid=1757, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:43:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2021-10-13 19:43:04,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 3627. [2021-10-13 19:43:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3627 states, 3376 states have (on average 4.263921800947867) internal successors, (14395), 3626 states have internal predecessors, (14395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 14395 transitions. [2021-10-13 19:43:04,522 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 14395 transitions. Word has length 20 [2021-10-13 19:43:04,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:43:04,522 INFO L470 AbstractCegarLoop]: Abstraction has 3627 states and 14395 transitions. [2021-10-13 19:43:04,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:04,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 14395 transitions. [2021-10-13 19:43:04,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:43:04,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:43:04,523 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:43:04,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2021-10-13 19:43:04,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-10-13 19:43:04,724 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:43:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:43:04,724 INFO L82 PathProgramCache]: Analyzing trace with hash 2049746380, now seen corresponding path program 3 times [2021-10-13 19:43:04,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:43:04,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386857091] [2021-10-13 19:43:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:04,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:43:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:05,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:43:05,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386857091] [2021-10-13 19:43:05,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386857091] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:05,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840439604] [2021-10-13 19:43:05,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:43:05,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:05,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:43:05,496 INFO L229 MonitoredProcess]: Starting monitored process 111 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:43:05,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2021-10-13 19:43:08,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:43:08,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:43:08,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:43:08,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:43:08,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:08,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:08,888 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:43:08,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 100 [2021-10-13 19:43:10,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:43:11,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:11,372 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:43:11,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 68 treesize of output 124 [2021-10-13 19:43:11,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:43:11,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:43:11,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:43:11,702 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:43:11,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-10-13 19:43:11,775 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:43:11,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:43:12,080 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:43:12,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:43:12,158 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:43:12,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:43:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:12,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840439604] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:12,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:43:12,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:43:12,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624807034] [2021-10-13 19:43:12,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:43:12,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:43:12,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:43:12,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:43:12,295 INFO L87 Difference]: Start difference. First operand 3627 states and 14395 transitions. Second operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:43:16,922 INFO L93 Difference]: Finished difference Result 7689 states and 27663 transitions. [2021-10-13 19:43:16,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 19:43:16,923 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:43:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:43:16,942 INFO L225 Difference]: With dead ends: 7689 [2021-10-13 19:43:16,943 INFO L226 Difference]: Without dead ends: 7689 [2021-10-13 19:43:16,943 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3085.5ms TimeCoverageRelationStatistics Valid=338, Invalid=2968, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 19:43:16,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7689 states. [2021-10-13 19:43:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7689 to 4172. [2021-10-13 19:43:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4172 states, 3921 states have (on average 4.471053302728896) internal successors, (17531), 4171 states have internal predecessors, (17531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4172 states to 4172 states and 17531 transitions. [2021-10-13 19:43:17,049 INFO L78 Accepts]: Start accepts. Automaton has 4172 states and 17531 transitions. Word has length 20 [2021-10-13 19:43:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:43:17,049 INFO L470 AbstractCegarLoop]: Abstraction has 4172 states and 17531 transitions. [2021-10-13 19:43:17,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4172 states and 17531 transitions. [2021-10-13 19:43:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:43:17,050 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:43:17,050 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:43:17,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2021-10-13 19:43:17,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-10-13 19:43:17,251 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:43:17,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:43:17,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2049746381, now seen corresponding path program 3 times [2021-10-13 19:43:17,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:43:17,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142741572] [2021-10-13 19:43:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:17,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:43:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:17,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:43:17,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142741572] [2021-10-13 19:43:17,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142741572] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:17,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647694128] [2021-10-13 19:43:17,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:43:17,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:17,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:43:17,826 INFO L229 MonitoredProcess]: Starting monitored process 112 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:43:17,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-10-13 19:43:20,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:43:20,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:43:20,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:43:20,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:43:20,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:20,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:20,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:21,068 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:43:21,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:43:22,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:43:22,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:22,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:22,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:22,751 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:43:22,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:43:22,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:43:22,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:43:23,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:43:23,073 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:43:23,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 19:43:23,150 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:43:23,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:43:23,497 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:43:23,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:43:23,579 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:43:23,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:43:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:23,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647694128] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:23,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:43:23,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:43:23,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737083035] [2021-10-13 19:43:23,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:43:23,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:43:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:43:23,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:43:23,631 INFO L87 Difference]: Start difference. First operand 4172 states and 17531 transitions. Second operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:43:27,173 INFO L93 Difference]: Finished difference Result 6833 states and 24855 transitions. [2021-10-13 19:43:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:43:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:43:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:43:27,195 INFO L225 Difference]: With dead ends: 6833 [2021-10-13 19:43:27,195 INFO L226 Difference]: Without dead ends: 6833 [2021-10-13 19:43:27,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2354.8ms TimeCoverageRelationStatistics Valid=205, Invalid=1775, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 19:43:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6833 states. [2021-10-13 19:43:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6833 to 4088. [2021-10-13 19:43:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4088 states, 3837 states have (on average 4.400833984884024) internal successors, (16886), 4087 states have internal predecessors, (16886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:27,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 16886 transitions. [2021-10-13 19:43:27,302 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 16886 transitions. Word has length 20 [2021-10-13 19:43:27,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:43:27,302 INFO L470 AbstractCegarLoop]: Abstraction has 4088 states and 16886 transitions. [2021-10-13 19:43:27,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:27,302 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 16886 transitions. [2021-10-13 19:43:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:43:27,303 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:43:27,303 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:43:27,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2021-10-13 19:43:27,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-10-13 19:43:27,504 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:43:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:43:27,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2049746386, now seen corresponding path program 3 times [2021-10-13 19:43:27,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:43:27,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676594625] [2021-10-13 19:43:27,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:27,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:43:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:43:28,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:43:28,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676594625] [2021-10-13 19:43:28,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676594625] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:28,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144770335] [2021-10-13 19:43:28,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:43:28,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:28,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:43:28,343 INFO L229 MonitoredProcess]: Starting monitored process 113 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:43:28,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-10-13 19:43:31,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:43:31,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:43:31,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:43:31,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:43:31,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-13 19:43:31,921 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:43:31,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:43:32,415 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:43:32,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:43:32,537 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:43:32,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:43:32,608 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:32,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144770335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:32,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:43:32,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 31 [2021-10-13 19:43:32,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846092450] [2021-10-13 19:43:32,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:43:32,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:43:32,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:43:32,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:43:32,609 INFO L87 Difference]: Start difference. First operand 4088 states and 16886 transitions. Second operand has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:43:36,169 INFO L93 Difference]: Finished difference Result 4695 states and 18446 transitions. [2021-10-13 19:43:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:43:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:43:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:43:36,186 INFO L225 Difference]: With dead ends: 4695 [2021-10-13 19:43:36,186 INFO L226 Difference]: Without dead ends: 4635 [2021-10-13 19:43:36,187 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3150.9ms TimeCoverageRelationStatistics Valid=313, Invalid=1757, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:43:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2021-10-13 19:43:36,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 3944. [2021-10-13 19:43:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 3693 states have (on average 4.312753858651503) internal successors, (15927), 3943 states have internal predecessors, (15927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 15927 transitions. [2021-10-13 19:43:36,271 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 15927 transitions. Word has length 20 [2021-10-13 19:43:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:43:36,271 INFO L470 AbstractCegarLoop]: Abstraction has 3944 states and 15927 transitions. [2021-10-13 19:43:36,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 15927 transitions. [2021-10-13 19:43:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:43:36,272 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:43:36,272 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:43:36,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2021-10-13 19:43:36,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-10-13 19:43:36,473 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:43:36,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:43:36,474 INFO L82 PathProgramCache]: Analyzing trace with hash -782996890, now seen corresponding path program 1 times [2021-10-13 19:43:36,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:43:36,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200545384] [2021-10-13 19:43:36,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:36,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:43:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:43:37,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:43:37,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200545384] [2021-10-13 19:43:37,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200545384] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:37,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103886777] [2021-10-13 19:43:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:37,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:37,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:43:37,495 INFO L229 MonitoredProcess]: Starting monitored process 114 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:43:37,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-10-13 19:43:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:40,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-13 19:43:40,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:43:40,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:43:40,923 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-10-13 19:43:40,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-10-13 19:43:41,053 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-10-13 19:43:41,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2021-10-13 19:43:41,200 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-10-13 19:43:41,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2021-10-13 19:43:41,339 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-10-13 19:43:41,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2021-10-13 19:43:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:43:41,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103886777] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:41,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:43:41,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2021-10-13 19:43:41,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218824004] [2021-10-13 19:43:41,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:43:41,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:43:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:43:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:43:41,693 INFO L87 Difference]: Start difference. First operand 3944 states and 15927 transitions. Second operand has 34 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:43:44,267 INFO L93 Difference]: Finished difference Result 3798 states and 15305 transitions. [2021-10-13 19:43:44,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:43:44,267 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:43:44,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:43:44,278 INFO L225 Difference]: With dead ends: 3798 [2021-10-13 19:43:44,278 INFO L226 Difference]: Without dead ends: 3798 [2021-10-13 19:43:44,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 2840.4ms TimeCoverageRelationStatistics Valid=243, Invalid=1649, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:43:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2021-10-13 19:43:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3792. [2021-10-13 19:43:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3541 states have (on average 4.320813329567919) internal successors, (15300), 3791 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 15300 transitions. [2021-10-13 19:43:44,347 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 15300 transitions. Word has length 20 [2021-10-13 19:43:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:43:44,347 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 15300 transitions. [2021-10-13 19:43:44,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 15300 transitions. [2021-10-13 19:43:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:43:44,348 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:43:44,348 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:43:44,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2021-10-13 19:43:44,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,114 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:44,549 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:43:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:43:44,550 INFO L82 PathProgramCache]: Analyzing trace with hash -782996884, now seen corresponding path program 3 times [2021-10-13 19:43:44,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:43:44,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045931633] [2021-10-13 19:43:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:44,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:43:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:43:45,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:43:45,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045931633] [2021-10-13 19:43:45,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045931633] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:45,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255097987] [2021-10-13 19:43:45,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:43:45,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:45,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:43:45,837 INFO L229 MonitoredProcess]: Starting monitored process 115 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:43:45,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2021-10-13 19:43:48,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:43:48,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:43:48,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-13 19:43:48,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:43:48,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:49,093 INFO L354 Elim1Store]: treesize reduction 316, result has 12.5 percent of original size [2021-10-13 19:43:49,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:43:50,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:43:50,360 INFO L354 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2021-10-13 19:43:50,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 44 [2021-10-13 19:43:50,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:50,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:43:50,902 INFO L354 Elim1Store]: treesize reduction 128, result has 36.3 percent of original size [2021-10-13 19:43:50,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:43:51,153 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-13 19:43:51,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 45 [2021-10-13 19:43:51,297 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-13 19:43:51,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 49 [2021-10-13 19:43:51,379 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-13 19:43:51,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 49 [2021-10-13 19:43:51,481 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-10-13 19:43:51,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 73 [2021-10-13 19:43:51,648 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-10-13 19:43:51,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 50 [2021-10-13 19:43:51,815 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-10-13 19:43:51,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 50 [2021-10-13 19:43:51,977 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-10-13 19:43:51,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 50 [2021-10-13 19:43:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:43:52,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255097987] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:52,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:43:52,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 27 [2021-10-13 19:43:52,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802520457] [2021-10-13 19:43:52,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 19:43:52,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:43:52,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 19:43:52,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:43:52,430 INFO L87 Difference]: Start difference. First operand 3792 states and 15300 transitions. Second operand has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:43:55,954 INFO L93 Difference]: Finished difference Result 3640 states and 14673 transitions. [2021-10-13 19:43:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:43:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:43:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:43:55,963 INFO L225 Difference]: With dead ends: 3640 [2021-10-13 19:43:55,963 INFO L226 Difference]: Without dead ends: 2832 [2021-10-13 19:43:55,963 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3499.2ms TimeCoverageRelationStatistics Valid=239, Invalid=1567, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:43:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2021-10-13 19:43:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2832. [2021-10-13 19:43:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2581 states have (on average 4.4808213870592795) internal successors, (11565), 2831 states have internal predecessors, (11565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:56,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 11565 transitions. [2021-10-13 19:43:56,013 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 11565 transitions. Word has length 20 [2021-10-13 19:43:56,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:43:56,013 INFO L470 AbstractCegarLoop]: Abstraction has 2832 states and 11565 transitions. [2021-10-13 19:43:56,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:43:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 11565 transitions. [2021-10-13 19:43:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:43:56,014 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:43:56,014 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 19:43:56,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Forceful destruction successful, exit code 0 [2021-10-13 19:43:56,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,115 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:56,215 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:43:56,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:43:56,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1271313875, now seen corresponding path program 8 times [2021-10-13 19:43:56,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:43:56,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46484919] [2021-10-13 19:43:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:43:56,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:43:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:43:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:43:56,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:43:56,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46484919] [2021-10-13 19:43:56,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46484919] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:43:56,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738164389] [2021-10-13 19:43:56,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:43:56,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:43:56,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:43:56,865 INFO L229 MonitoredProcess]: Starting monitored process 116 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:43:56,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2021-10-13 19:43:59,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:43:59,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:43:59,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:43:59,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:44:00,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:44:00,330 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:44:00,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:44:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:44:00,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738164389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:00,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:44:00,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 36 [2021-10-13 19:44:00,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125529665] [2021-10-13 19:44:00,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-13 19:44:00,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:44:00,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-13 19:44:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 19:44:00,666 INFO L87 Difference]: Start difference. First operand 2832 states and 11565 transitions. Second operand has 38 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:44:02,852 INFO L93 Difference]: Finished difference Result 5662 states and 23131 transitions. [2021-10-13 19:44:02,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 19:44:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:44:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:44:02,869 INFO L225 Difference]: With dead ends: 5662 [2021-10-13 19:44:02,869 INFO L226 Difference]: Without dead ends: 5662 [2021-10-13 19:44:02,869 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2203.7ms TimeCoverageRelationStatistics Valid=361, Invalid=2395, Unknown=0, NotChecked=0, Total=2756 [2021-10-13 19:44:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2021-10-13 19:44:02,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 2846. [2021-10-13 19:44:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2595 states have (on average 4.468208092485549) internal successors, (11595), 2845 states have internal predecessors, (11595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 11595 transitions. [2021-10-13 19:44:02,936 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 11595 transitions. Word has length 20 [2021-10-13 19:44:02,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:44:02,937 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 11595 transitions. [2021-10-13 19:44:02,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 11595 transitions. [2021-10-13 19:44:02,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:44:02,937 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:44:02,937 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 19:44:02,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Forceful destruction successful, exit code 0 [2021-10-13 19:44:03,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable119 [2021-10-13 19:44:03,140 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:44:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:44:03,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1271313872, now seen corresponding path program 4 times [2021-10-13 19:44:03,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:44:03,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871327436] [2021-10-13 19:44:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:44:03,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:44:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:44:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:44:03,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:44:03,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871327436] [2021-10-13 19:44:03,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871327436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:03,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482849395] [2021-10-13 19:44:03,729 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:44:03,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:44:03,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:44:03,731 INFO L229 MonitoredProcess]: Starting monitored process 117 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:44:03,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-13 19:44:06,652 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:44:06,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:44:06,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:44:06,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:44:06,800 INFO L354 Elim1Store]: treesize reduction 365, result has 12.0 percent of original size [2021-10-13 19:44:06,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 267 treesize of output 281 [2021-10-13 19:44:11,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:44:12,498 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:44:12,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 78 treesize of output 134 [2021-10-13 19:44:12,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:44:12,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:44:12,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:44:12,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:44:12,757 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:44:12,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-10-13 19:44:12,817 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:44:12,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-13 19:44:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:44:13,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482849395] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:13,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:44:13,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:44:13,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305337107] [2021-10-13 19:44:13,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:44:13,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:44:13,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:44:13,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:44:13,121 INFO L87 Difference]: Start difference. First operand 2846 states and 11595 transitions. Second operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:15,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:44:15,438 INFO L93 Difference]: Finished difference Result 2856 states and 11614 transitions. [2021-10-13 19:44:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:44:15,439 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:44:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:44:15,448 INFO L225 Difference]: With dead ends: 2856 [2021-10-13 19:44:15,448 INFO L226 Difference]: Without dead ends: 2856 [2021-10-13 19:44:15,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2013.0ms TimeCoverageRelationStatistics Valid=226, Invalid=2030, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 19:44:15,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-10-13 19:44:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2848. [2021-10-13 19:44:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2597 states have (on average 4.46900269541779) internal successors, (11606), 2847 states have internal predecessors, (11606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 11606 transitions. [2021-10-13 19:44:15,517 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 11606 transitions. Word has length 20 [2021-10-13 19:44:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:44:15,517 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 11606 transitions. [2021-10-13 19:44:15,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 11606 transitions. [2021-10-13 19:44:15,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:44:15,517 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:44:15,517 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 19:44:15,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2021-10-13 19:44:15,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,117 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:44:15,718 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:44:15,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:44:15,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1271313871, now seen corresponding path program 5 times [2021-10-13 19:44:15,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:44:15,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395452359] [2021-10-13 19:44:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:44:15,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:44:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:44:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:44:16,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:44:16,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395452359] [2021-10-13 19:44:16,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395452359] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:16,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988386155] [2021-10-13 19:44:16,270 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 19:44:16,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:44:16,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:44:16,272 INFO L229 MonitoredProcess]: Starting monitored process 118 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:44:16,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-10-13 19:44:19,428 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 19:44:19,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:44:19,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:44:19,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:44:19,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:44:19,575 INFO L354 Elim1Store]: treesize reduction 346, result has 12.6 percent of original size [2021-10-13 19:44:19,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 55 [2021-10-13 19:44:22,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-13 19:44:22,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:44:22,771 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-10-13 19:44:22,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 60 treesize of output 116 [2021-10-13 19:44:22,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:44:22,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:44:22,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:44:23,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-10-13 19:44:23,033 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-10-13 19:44:23,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-10-13 19:44:23,098 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:44:23,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:44:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:44:23,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988386155] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:23,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:44:23,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 28 [2021-10-13 19:44:23,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104238871] [2021-10-13 19:44:23,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 19:44:23,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:44:23,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 19:44:23,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:44:23,402 INFO L87 Difference]: Start difference. First operand 2848 states and 11606 transitions. Second operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:44:25,617 INFO L93 Difference]: Finished difference Result 2855 states and 11611 transitions. [2021-10-13 19:44:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:44:25,617 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:44:25,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:44:25,628 INFO L225 Difference]: With dead ends: 2855 [2021-10-13 19:44:25,628 INFO L226 Difference]: Without dead ends: 2855 [2021-10-13 19:44:25,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2098.0ms TimeCoverageRelationStatistics Valid=224, Invalid=2032, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 19:44:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2021-10-13 19:44:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2848. [2021-10-13 19:44:25,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2597 states have (on average 4.468232576049288) internal successors, (11604), 2847 states have internal predecessors, (11604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 11604 transitions. [2021-10-13 19:44:25,681 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 11604 transitions. Word has length 20 [2021-10-13 19:44:25,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:44:25,681 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 11604 transitions. [2021-10-13 19:44:25,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 11604 transitions. [2021-10-13 19:44:25,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:44:25,682 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:44:25,682 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 19:44:25,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2021-10-13 19:44:25,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,118 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:44:25,883 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:44:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:44:25,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1271313866, now seen corresponding path program 6 times [2021-10-13 19:44:25,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:44:25,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824209587] [2021-10-13 19:44:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:44:25,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:44:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:44:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:44:26,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:44:26,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824209587] [2021-10-13 19:44:26,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824209587] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:26,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650040941] [2021-10-13 19:44:26,822 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 19:44:26,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:44:26,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:44:26,823 INFO L229 MonitoredProcess]: Starting monitored process 119 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:44:26,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2021-10-13 19:44:29,978 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-13 19:44:29,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:44:29,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:44:29,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:44:30,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-10-13 19:44:30,478 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:44:30,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-13 19:44:30,983 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:44:30,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650040941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:30,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:44:30,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 32 [2021-10-13 19:44:30,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559155965] [2021-10-13 19:44:30,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 19:44:30,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:44:30,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 19:44:30,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 19:44:30,984 INFO L87 Difference]: Start difference. First operand 2848 states and 11604 transitions. Second operand has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:44:33,998 INFO L93 Difference]: Finished difference Result 6081 states and 24343 transitions. [2021-10-13 19:44:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 19:44:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:44:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:44:34,019 INFO L225 Difference]: With dead ends: 6081 [2021-10-13 19:44:34,020 INFO L226 Difference]: Without dead ends: 6081 [2021-10-13 19:44:34,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 2709.1ms TimeCoverageRelationStatistics Valid=409, Invalid=2141, Unknown=0, NotChecked=0, Total=2550 [2021-10-13 19:44:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6081 states. [2021-10-13 19:44:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6081 to 2848. [2021-10-13 19:44:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2597 states have (on average 4.467462456680786) internal successors, (11602), 2847 states have internal predecessors, (11602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 11602 transitions. [2021-10-13 19:44:34,114 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 11602 transitions. Word has length 20 [2021-10-13 19:44:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:44:34,114 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 11602 transitions. [2021-10-13 19:44:34,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:44:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 11602 transitions. [2021-10-13 19:44:34,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:44:34,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:44:34,115 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:44:34,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2021-10-13 19:44:34,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-10-13 19:44:34,316 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2021-10-13 19:44:34,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:44:34,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1271314836, now seen corresponding path program 4 times [2021-10-13 19:44:34,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:44:34,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081111585] [2021-10-13 19:44:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:44:34,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:44:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:44:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:44:35,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:44:35,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081111585] [2021-10-13 19:44:35,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081111585] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:35,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670756416] [2021-10-13 19:44:35,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:44:35,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:44:35,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:44:35,157 INFO L229 MonitoredProcess]: Starting monitored process 120 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:44:35,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2021-10-13 19:44:38,308 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:44:38,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:44:38,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:44:38,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:44:38,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-13 19:44:38,654 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:44:38,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-13 19:44:38,726 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:44:38,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:44:39,015 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:44:39,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-13 19:44:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 19:44:39,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670756416] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:44:39,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:44:39,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2021-10-13 19:44:39,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863841262] [2021-10-13 19:44:39,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 19:44:39,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:44:39,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 19:44:39,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:44:39,068 INFO L87 Difference]: Start difference. First operand 2848 states and 11602 transitions. Second operand has 33 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-10-13 19:44:40,699 WARN L223 SmtUtils]: Removed 4 from assertion stack [2021-10-13 19:44:40,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:44:40,701 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,717 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 19:44:40,728 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 19:44:40,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Ended with exit code 0 [2021-10-13 19:44:40,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-10-13 19:44:40,902 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. [2021-10-13 19:44:40,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,908 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,912 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,913 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:44:40,920 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:44:40,921 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:44:40,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:44:40 BasicIcfg [2021-10-13 19:44:40,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:44:40,923 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-13 19:44:40,924 INFO L168 Benchmark]: Toolchain (without parser) took 718235.49 ms. Allocated memory was 175.1 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 149.1 MB in the beginning and 474.5 MB in the end (delta: -325.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2021-10-13 19:44:40,924 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 175.1 MB. Free memory is still 145.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:44:40,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.81 ms. Allocated memory is still 175.1 MB. Free memory was 148.8 MB in the beginning and 137.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:44:40,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.32 ms. Allocated memory is still 175.1 MB. Free memory was 137.7 MB in the beginning and 135.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:44:40,924 INFO L168 Benchmark]: Boogie Preprocessor took 84.56 ms. Allocated memory is still 175.1 MB. Free memory was 135.1 MB in the beginning and 133.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:44:40,924 INFO L168 Benchmark]: RCFGBuilder took 3096.11 ms. Allocated memory was 175.1 MB in the beginning and 210.8 MB in the end (delta: 35.7 MB). Free memory was 133.0 MB in the beginning and 169.5 MB in the end (delta: -36.5 MB). Peak memory consumption was 97.9 MB. Max. memory is 8.0 GB. [2021-10-13 19:44:40,925 INFO L168 Benchmark]: TraceAbstraction took 714465.26 ms. Allocated memory was 210.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 169.0 MB in the beginning and 474.5 MB in the end (delta: -305.5 MB). Peak memory consumption was 994.2 MB. Max. memory is 8.0 GB. [2021-10-13 19:44:40,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 175.1 MB. Free memory is still 145.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 467.81 ms. Allocated memory is still 175.1 MB. Free memory was 148.8 MB in the beginning and 137.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 102.32 ms. Allocated memory is still 175.1 MB. Free memory was 137.7 MB in the beginning and 135.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.56 ms. Allocated memory is still 175.1 MB. Free memory was 135.1 MB in the beginning and 133.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 3096.11 ms. Allocated memory was 175.1 MB in the beginning and 210.8 MB in the end (delta: 35.7 MB). Free memory was 133.0 MB in the beginning and 169.5 MB in the end (delta: -36.5 MB). Peak memory consumption was 97.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 714465.26 ms. Allocated memory was 210.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 169.0 MB in the beginning and 474.5 MB in the end (delta: -305.5 MB). Peak memory consumption was 994.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49544.2ms, 222 PlacesBefore, 80 PlacesAfterwards, 228 TransitionsBefore, 75 TransitionsAfterwards, 5928 CoEnabledTransitionPairs, 7 FixpointIterations, 119 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 26 TrivialYvCompositions, 6 ConcurrentYvCompositions, 11 ChoiceCompositions, 244 TotalNumberOfCompositions, 8556 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7381, positive: 7340, positive conditional: 0, positive unconditional: 7340, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2814, positive: 2799, positive conditional: 0, positive unconditional: 2799, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2814, positive: 2798, positive conditional: 0, positive unconditional: 2798, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 243, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 229, negative conditional: 0, negative unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7381, positive: 4541, positive conditional: 0, positive unconditional: 4541, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 2814, unknown conditional: 0, unknown unconditional: 2814] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 271, Positive conditional cache size: 0, Positive unconditional cache size: 271, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (2848states) and FLOYD_HOARE automaton (currently 18 states, 33 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 76 for 79ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 291 locations, 91 error locations. Started 1 CEGAR loops. OverallTime: 714071.8ms, OverallIterations: 124, TraceHistogramMax: 5, EmptinessCheckTime: 122.2ms, AutomataDifference: 232813.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 50010.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4130 SDtfs, 41368 SDslu, 30511 SDs, 0 SdLazy, 88031 SolverSat, 7845 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 108320.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4310 GetRequests, 567 SyntacticMatches, 46 SemanticMatches, 3696 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22716 ImplicationChecksByTransitivity, 164852.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11052occurred in iteration=0, InterpolantAutomatonStates: 1862, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11889.7ms AutomataMinimizationTime, 123 MinimizatonAttempts, 174505 StatesRemovedByMinimization, 117 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1886.3ms SsaConstructionTime, 13595.4ms SatisfiabilityAnalysisTime, 220650.7ms InterpolantComputationTime, 3476 NumberOfCodeBlocks, 3470 NumberOfCodeBlocksAsserted, 333 NumberOfCheckSat, 3233 ConstructedInterpolants, 364 QuantifiedInterpolants, 85198 SizeOfPredicates, 1454 NumberOfNonLiveVariables, 23379 ConjunctsInSsa, 3815 ConjunctsInUnsatCore, 243 InterpolantComputations, 9 PerfectInterpolantSequences, 835/3274 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown