/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/parallel-parallel-sum-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:15:32,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:15:32,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:15:32,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:15:32,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:15:32,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:15:32,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:15:32,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:15:32,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:15:32,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:15:32,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:15:32,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:15:32,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:15:32,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:15:32,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:15:32,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:15:32,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:15:32,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:15:32,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:15:32,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:15:32,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:15:32,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:15:32,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:15:32,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:15:32,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 19:15:32,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:15:32,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:15:32,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:15:32,280 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 19:15:32,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:15:32,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:15:32,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:15:32,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:15:32,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:15:32,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:15:32,349 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:15:32,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:15:32,350 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:15:32,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:15:32,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:15:32,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:15:32,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:15:32,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:15:32,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:15:32,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:15:32,353 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:15:32,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:15:32,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:15:32,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:15:32,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:15:32,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:15:32,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:15:32,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:15:32,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:15:32,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:15:32,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:15:32,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:15:32,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:15:32,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:15:32,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:15:32,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:15:32,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:15:32,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:15:32,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:15:32,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:15:32,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:15:32,856 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:15:32,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2021-10-13 19:15:32,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/191fb1f9b/8d9b0478dd704cba8a6f6f16cc8d17a0/FLAGc3aeeecbc [2021-10-13 19:15:33,602 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:15:33,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2021-10-13 19:15:33,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/191fb1f9b/8d9b0478dd704cba8a6f6f16cc8d17a0/FLAGc3aeeecbc [2021-10-13 19:15:33,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/191fb1f9b/8d9b0478dd704cba8a6f6f16cc8d17a0 [2021-10-13 19:15:33,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:15:33,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:15:33,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:15:33,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:15:33,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:15:33,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:33" (1/1) ... [2021-10-13 19:15:33,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15daeec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:33, skipping insertion in model container [2021-10-13 19:15:33,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:33" (1/1) ... [2021-10-13 19:15:33,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:15:33,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:15:34,187 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/parallel-parallel-sum-1.wvr.c[3642,3655] [2021-10-13 19:15:34,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:15:34,211 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:15:34,245 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/parallel-parallel-sum-1.wvr.c[3642,3655] [2021-10-13 19:15:34,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:15:34,271 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:15:34,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34 WrapperNode [2021-10-13 19:15:34,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:15:34,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:15:34,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:15:34,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:15:34,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:15:34,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:15:34,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:15:34,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:15:34,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:15:34,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:15:34,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:15:34,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:15:34,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (1/1) ... [2021-10-13 19:15:34,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:15:34,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:15:34,439 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 19:15:34,450 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 19:15:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:15:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:15:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:15:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:15:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:15:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:15:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:15:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:15:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:15:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-13 19:15:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-13 19:15:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:15:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 19:15:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 19:15:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:15:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:15:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:15:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:15:34,529 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 19:15:36,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:15:36,671 INFO L299 CfgBuilder]: Removed 53 assume(true) statements. [2021-10-13 19:15:36,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:36 BoogieIcfgContainer [2021-10-13 19:15:36,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:15:36,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:15:36,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:15:36,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:15:36,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:15:33" (1/3) ... [2021-10-13 19:15:36,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568e4cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:15:36, skipping insertion in model container [2021-10-13 19:15:36,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:34" (2/3) ... [2021-10-13 19:15:36,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568e4cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:15:36, skipping insertion in model container [2021-10-13 19:15:36,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:36" (3/3) ... [2021-10-13 19:15:36,684 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2021-10-13 19:15:36,690 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:15:36,690 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:15:36,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-13 19:15:36,691 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:15:36,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,750 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,753 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,753 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,757 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,770 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,799 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,814 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,814 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,814 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,814 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,815 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,815 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,821 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,821 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,821 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,821 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,821 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,822 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,822 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,822 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,822 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,823 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,824 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,824 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,824 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,825 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,826 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,826 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,827 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,828 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,828 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,828 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,829 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,835 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,835 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,835 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,836 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,837 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,837 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,838 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,838 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,840 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,840 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,840 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,841 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,842 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,845 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,846 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,847 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,848 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,848 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,848 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,848 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,848 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,848 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,849 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,849 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,849 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,849 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,849 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,850 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,852 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,852 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,852 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,853 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,854 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,854 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,854 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,854 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,855 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,855 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,856 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,857 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,857 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,857 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,857 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,859 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,859 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,859 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,859 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,862 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,862 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,862 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,862 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,864 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,865 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,865 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,866 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,867 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,867 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,867 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,873 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,874 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,876 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,876 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,877 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,879 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,879 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,879 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,881 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,881 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,881 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,881 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,881 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,882 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,882 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,882 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,882 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,883 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,884 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,884 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,885 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,886 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,886 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,890 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,891 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,891 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,891 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,891 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,895 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,898 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,898 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,899 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,900 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,902 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,902 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_plus_#t~short44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,903 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:15:36,913 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-13 19:15:36,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:15:36,983 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 19:15:36,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2021-10-13 19:15:37,004 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:15:37,023 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 229 transitions, 490 flow [2021-10-13 19:15:37,027 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 229 transitions, 490 flow [2021-10-13 19:15:37,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 227 places, 229 transitions, 490 flow [2021-10-13 19:15:37,123 INFO L129 PetriNetUnfolder]: 15/225 cut-off events. [2021-10-13 19:15:37,123 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-13 19:15:37,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 225 events. 15/225 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 260 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 181. Up to 2 conditions per place. [2021-10-13 19:15:37,142 INFO L116 LiptonReduction]: Number of co-enabled transitions 5712 [2021-10-13 19:15:56,598 INFO L131 LiptonReduction]: Checked pairs total: 19490 [2021-10-13 19:15:56,599 INFO L133 LiptonReduction]: Total number of compositions: 248 [2021-10-13 19:15:56,610 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 174 flow [2021-10-13 19:15:58,874 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35133 states, 28569 states have (on average 5.4109699324442575) internal successors, (154586), 35132 states have internal predecessors, (154586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 35133 states, 28569 states have (on average 5.4109699324442575) internal successors, (154586), 35132 states have internal predecessors, (154586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-13 19:15:58,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:58,972 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-13 19:15:58,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:15:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:58,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1448, now seen corresponding path program 1 times [2021-10-13 19:15:58,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:58,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778538624] [2021-10-13 19:15:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:58,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:59,141 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 19:15:59,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:59,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778538624] [2021-10-13 19:15:59,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778538624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:59,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:59,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-10-13 19:15:59,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187725438] [2021-10-13 19:15:59,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 19:15:59,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:59,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 19:15:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 19:15:59,244 INFO L87 Difference]: Start difference. First operand has 35133 states, 28569 states have (on average 5.4109699324442575) internal successors, (154586), 35132 states have internal predecessors, (154586), 0 states have call successors, (0), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:00,233 INFO L93 Difference]: Finished difference Result 16395 states and 71736 transitions. [2021-10-13 19:16:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 19:16:00,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 1 [2021-10-13 19:16:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:00,614 INFO L225 Difference]: With dead ends: 16395 [2021-10-13 19:16:00,614 INFO L226 Difference]: Without dead ends: 16395 [2021-10-13 19:16:00,619 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 19:16:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2021-10-13 19:16:02,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 16395. [2021-10-13 19:16:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16395 states, 13993 states have (on average 5.12656328164082) internal successors, (71736), 16394 states have internal predecessors, (71736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:02,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16395 states to 16395 states and 71736 transitions. [2021-10-13 19:16:02,484 INFO L78 Accepts]: Start accepts. Automaton has 16395 states and 71736 transitions. Word has length 1 [2021-10-13 19:16:02,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:02,485 INFO L470 AbstractCegarLoop]: Abstraction has 16395 states and 71736 transitions. [2021-10-13 19:16:02,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:02,486 INFO L276 IsEmpty]: Start isEmpty. Operand 16395 states and 71736 transitions. [2021-10-13 19:16:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:16:02,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:02,486 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:16:02,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:16:02,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:02,488 INFO L82 PathProgramCache]: Analyzing trace with hash 46415, now seen corresponding path program 1 times [2021-10-13 19:16:02,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:02,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223015906] [2021-10-13 19:16:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:02,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:02,783 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 19:16:02,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:02,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223015906] [2021-10-13 19:16:02,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223015906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:02,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:02,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:02,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846412345] [2021-10-13 19:16:02,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:02,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:02,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:02,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:02,797 INFO L87 Difference]: Start difference. First operand 16395 states and 71736 transitions. 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 19:16:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:03,636 INFO L93 Difference]: Finished difference Result 32787 states and 143470 transitions. [2021-10-13 19:16:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:03,637 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 19:16:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:04,021 INFO L225 Difference]: With dead ends: 32787 [2021-10-13 19:16:04,021 INFO L226 Difference]: Without dead ends: 32787 [2021-10-13 19:16:04,022 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32787 states. [2021-10-13 19:16:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32787 to 16396. [2021-10-13 19:16:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16396 states, 13994 states have (on average 5.126411319136773) internal successors, (71739), 16395 states have internal predecessors, (71739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16396 states to 16396 states and 71739 transitions. [2021-10-13 19:16:05,831 INFO L78 Accepts]: Start accepts. Automaton has 16396 states and 71739 transitions. Word has length 2 [2021-10-13 19:16:05,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:05,832 INFO L470 AbstractCegarLoop]: Abstraction has 16396 states and 71739 transitions. [2021-10-13 19:16:05,832 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 19:16:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 16396 states and 71739 transitions. [2021-10-13 19:16:05,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:16:05,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:05,833 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:16:05,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 19:16:05,834 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:05,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:05,835 INFO L82 PathProgramCache]: Analyzing trace with hash 46416, now seen corresponding path program 1 times [2021-10-13 19:16:05,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:05,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281459292] [2021-10-13 19:16:05,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:05,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:05,918 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 19:16:05,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:05,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281459292] [2021-10-13 19:16:05,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281459292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:05,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:05,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:05,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357488360] [2021-10-13 19:16:05,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:05,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:05,921 INFO L87 Difference]: Start difference. First operand 16396 states and 71739 transitions. 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 19:16:06,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:06,188 INFO L93 Difference]: Finished difference Result 16395 states and 71737 transitions. [2021-10-13 19:16:06,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:06,188 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 19:16:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:06,341 INFO L225 Difference]: With dead ends: 16395 [2021-10-13 19:16:06,342 INFO L226 Difference]: Without dead ends: 16395 [2021-10-13 19:16:06,342 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 19:16:06,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2021-10-13 19:16:07,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 16395. [2021-10-13 19:16:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16395 states, 13994 states have (on average 5.126268400743176) internal successors, (71737), 16394 states have internal predecessors, (71737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16395 states to 16395 states and 71737 transitions. [2021-10-13 19:16:07,665 INFO L78 Accepts]: Start accepts. Automaton has 16395 states and 71737 transitions. Word has length 2 [2021-10-13 19:16:07,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:07,666 INFO L470 AbstractCegarLoop]: Abstraction has 16395 states and 71737 transitions. [2021-10-13 19:16:07,666 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 19:16:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand 16395 states and 71737 transitions. [2021-10-13 19:16:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:16:07,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:07,667 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:16:07,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 19:16:07,667 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:07,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1440888, now seen corresponding path program 1 times [2021-10-13 19:16:07,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:07,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201740630] [2021-10-13 19:16:07,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:07,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:07,736 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 19:16:07,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:07,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201740630] [2021-10-13 19:16:07,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201740630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:07,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741896794] [2021-10-13 19:16:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:07,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:07,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:07,740 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 19:16:07,754 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 19:16:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:07,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:16:07,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:07,913 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 19:16:07,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741896794] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:07,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:07,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-13 19:16:07,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517161050] [2021-10-13 19:16:07,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:07,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:07,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:07,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:07,916 INFO L87 Difference]: Start difference. First operand 16395 states and 71737 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 19:16:08,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:08,748 INFO L93 Difference]: Finished difference Result 49178 states and 215201 transitions. [2021-10-13 19:16:08,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:16:08,749 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 19:16:08,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:09,611 INFO L225 Difference]: With dead ends: 49178 [2021-10-13 19:16:09,612 INFO L226 Difference]: Without dead ends: 49178 [2021-10-13 19:16:09,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:09,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49178 states. [2021-10-13 19:16:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49178 to 16396. [2021-10-13 19:16:11,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16396 states, 13995 states have (on average 5.12604501607717) internal successors, (71739), 16395 states have internal predecessors, (71739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16396 states to 16396 states and 71739 transitions. [2021-10-13 19:16:11,561 INFO L78 Accepts]: Start accepts. Automaton has 16396 states and 71739 transitions. Word has length 3 [2021-10-13 19:16:11,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:11,562 INFO L470 AbstractCegarLoop]: Abstraction has 16396 states and 71739 transitions. [2021-10-13 19:16:11,562 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 19:16:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16396 states and 71739 transitions. [2021-10-13 19:16:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:16:11,563 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:11,563 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:16:11,612 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 19:16:11,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:11,777 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:11,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:11,777 INFO L82 PathProgramCache]: Analyzing trace with hash 44669551, now seen corresponding path program 2 times [2021-10-13 19:16:11,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:11,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772315657] [2021-10-13 19:16:11,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:11,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:11,839 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 19:16:11,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:11,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772315657] [2021-10-13 19:16:11,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772315657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:11,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400092208] [2021-10-13 19:16:11,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:16:11,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:11,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:11,842 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 19:16:11,847 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 19:16:11,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:16:11,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:16:11,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:16:11,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:12,033 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 19:16:12,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400092208] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:12,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:16:12,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:16:12,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392722864] [2021-10-13 19:16:12,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:12,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:12,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:12,036 INFO L87 Difference]: Start difference. First operand 16396 states and 71739 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 19:16:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:12,595 INFO L93 Difference]: Finished difference Result 16395 states and 71738 transitions. [2021-10-13 19:16:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:12,596 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 19:16:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:12,721 INFO L225 Difference]: With dead ends: 16395 [2021-10-13 19:16:12,721 INFO L226 Difference]: Without dead ends: 16395 [2021-10-13 19:16:12,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:12,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2021-10-13 19:16:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 16393. [2021-10-13 19:16:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16393 states, 13993 states have (on average 5.12642035303366) internal successors, (71734), 16392 states have internal predecessors, (71734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16393 states to 16393 states and 71734 transitions. [2021-10-13 19:16:13,843 INFO L78 Accepts]: Start accepts. Automaton has 16393 states and 71734 transitions. Word has length 4 [2021-10-13 19:16:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:13,844 INFO L470 AbstractCegarLoop]: Abstraction has 16393 states and 71734 transitions. [2021-10-13 19:16:13,844 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 19:16:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 16393 states and 71734 transitions. [2021-10-13 19:16:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:16:13,845 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:13,845 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 19:16:13,887 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 19:16:14,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:14,059 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:14,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:14,059 INFO L82 PathProgramCache]: Analyzing trace with hash 44672098, now seen corresponding path program 1 times [2021-10-13 19:16:14,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:14,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697801278] [2021-10-13 19:16:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:14,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:14,125 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 19:16:14,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:14,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697801278] [2021-10-13 19:16:14,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697801278] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:14,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:14,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:14,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340662888] [2021-10-13 19:16:14,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:14,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:14,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:14,128 INFO L87 Difference]: Start difference. First operand 16393 states and 71734 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:14,325 INFO L93 Difference]: Finished difference Result 13135 states and 57363 transitions. [2021-10-13 19:16:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:14,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:16:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:14,435 INFO L225 Difference]: With dead ends: 13135 [2021-10-13 19:16:14,435 INFO L226 Difference]: Without dead ends: 13135 [2021-10-13 19:16:14,436 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13135 states. [2021-10-13 19:16:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13135 to 13135. [2021-10-13 19:16:15,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13135 states, 11372 states have (on average 5.044231445655997) internal successors, (57363), 13134 states have internal predecessors, (57363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13135 states to 13135 states and 57363 transitions. [2021-10-13 19:16:15,473 INFO L78 Accepts]: Start accepts. Automaton has 13135 states and 57363 transitions. Word has length 4 [2021-10-13 19:16:15,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:15,474 INFO L470 AbstractCegarLoop]: Abstraction has 13135 states and 57363 transitions. [2021-10-13 19:16:15,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 13135 states and 57363 transitions. [2021-10-13 19:16:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:16:15,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:15,475 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 19:16:15,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 19:16:15,475 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:15,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:15,476 INFO L82 PathProgramCache]: Analyzing trace with hash 44672099, now seen corresponding path program 1 times [2021-10-13 19:16:15,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:15,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470736183] [2021-10-13 19:16:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:15,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:15,580 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 19:16:15,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:15,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470736183] [2021-10-13 19:16:15,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470736183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:15,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:15,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:15,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618104153] [2021-10-13 19:16:15,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:15,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:15,583 INFO L87 Difference]: Start difference. First operand 13135 states and 57363 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:15,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:15,756 INFO L93 Difference]: Finished difference Result 10241 states and 44606 transitions. [2021-10-13 19:16:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:15,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:16:15,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:15,822 INFO L225 Difference]: With dead ends: 10241 [2021-10-13 19:16:15,822 INFO L226 Difference]: Without dead ends: 10241 [2021-10-13 19:16:15,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:15,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10241 states. [2021-10-13 19:16:16,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10241 to 10241. [2021-10-13 19:16:16,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10241 states, 9017 states have (on average 4.946878119108351) internal successors, (44606), 10240 states have internal predecessors, (44606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 44606 transitions. [2021-10-13 19:16:16,529 INFO L78 Accepts]: Start accepts. Automaton has 10241 states and 44606 transitions. Word has length 4 [2021-10-13 19:16:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:16,529 INFO L470 AbstractCegarLoop]: Abstraction has 10241 states and 44606 transitions. [2021-10-13 19:16:16,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand 10241 states and 44606 transitions. [2021-10-13 19:16:16,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:16:16,530 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:16,530 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 19:16:16,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:16:16,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:16,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:16,531 INFO L82 PathProgramCache]: Analyzing trace with hash 44672036, now seen corresponding path program 1 times [2021-10-13 19:16:16,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:16,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922634709] [2021-10-13 19:16:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:16,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:16,566 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 19:16:16,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:16,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922634709] [2021-10-13 19:16:16,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922634709] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:16,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:16,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:16,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666923078] [2021-10-13 19:16:16,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:16,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:16,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:16,569 INFO L87 Difference]: Start difference. First operand 10241 states and 44606 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:16,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:16,661 INFO L93 Difference]: Finished difference Result 7711 states and 33463 transitions. [2021-10-13 19:16:16,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:16,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:16:16,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:16,697 INFO L225 Difference]: With dead ends: 7711 [2021-10-13 19:16:16,697 INFO L226 Difference]: Without dead ends: 7711 [2021-10-13 19:16:16,698 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 19:16:16,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7711 states. [2021-10-13 19:16:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7711 to 7711. [2021-10-13 19:16:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7711 states, 6928 states have (on average 4.830109699769053) internal successors, (33463), 7710 states have internal predecessors, (33463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7711 states to 7711 states and 33463 transitions. [2021-10-13 19:16:17,359 INFO L78 Accepts]: Start accepts. Automaton has 7711 states and 33463 transitions. Word has length 4 [2021-10-13 19:16:17,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:17,359 INFO L470 AbstractCegarLoop]: Abstraction has 7711 states and 33463 transitions. [2021-10-13 19:16:17,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7711 states and 33463 transitions. [2021-10-13 19:16:17,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:16:17,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:17,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 19:16:17,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:16:17,361 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:17,362 INFO L82 PathProgramCache]: Analyzing trace with hash 44672038, now seen corresponding path program 1 times [2021-10-13 19:16:17,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:17,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755570869] [2021-10-13 19:16:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:17,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:17,526 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 19:16:17,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:17,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755570869] [2021-10-13 19:16:17,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755570869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:17,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:17,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:16:17,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972710965] [2021-10-13 19:16:17,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:17,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:17,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:17,529 INFO L87 Difference]: Start difference. First operand 7711 states and 33463 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:17,773 INFO L93 Difference]: Finished difference Result 17877 states and 76979 transitions. [2021-10-13 19:16:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:16:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:16:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:17,872 INFO L225 Difference]: With dead ends: 17877 [2021-10-13 19:16:17,872 INFO L226 Difference]: Without dead ends: 17877 [2021-10-13 19:16:17,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17877 states. [2021-10-13 19:16:18,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17877 to 8423. [2021-10-13 19:16:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 7640 states have (on average 4.850785340314136) internal successors, (37060), 8422 states have internal predecessors, (37060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:18,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 37060 transitions. [2021-10-13 19:16:18,554 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 37060 transitions. Word has length 4 [2021-10-13 19:16:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:18,555 INFO L470 AbstractCegarLoop]: Abstraction has 8423 states and 37060 transitions. [2021-10-13 19:16:18,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 37060 transitions. [2021-10-13 19:16:18,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 19:16:18,555 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:18,555 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 19:16:18,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:16:18,556 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:18,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:18,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1384834252, now seen corresponding path program 1 times [2021-10-13 19:16:18,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:18,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840853167] [2021-10-13 19:16:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:18,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:18,797 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 19:16:18,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:18,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840853167] [2021-10-13 19:16:18,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840853167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:18,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:18,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:16:18,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042464735] [2021-10-13 19:16:18,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:18,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:18,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:18,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:18,802 INFO L87 Difference]: Start difference. First operand 8423 states and 37060 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 19:16:19,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:19,016 INFO L93 Difference]: Finished difference Result 9653 states and 41198 transitions. [2021-10-13 19:16:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:16:19,018 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 19:16:19,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:19,126 INFO L225 Difference]: With dead ends: 9653 [2021-10-13 19:16:19,127 INFO L226 Difference]: Without dead ends: 9645 [2021-10-13 19:16:19,132 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:19,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2021-10-13 19:16:19,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 9129. [2021-10-13 19:16:19,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9129 states, 8346 states have (on average 4.7619218787443085) internal successors, (39743), 9128 states have internal predecessors, (39743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9129 states to 9129 states and 39743 transitions. [2021-10-13 19:16:19,862 INFO L78 Accepts]: Start accepts. Automaton has 9129 states and 39743 transitions. Word has length 5 [2021-10-13 19:16:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:19,863 INFO L470 AbstractCegarLoop]: Abstraction has 9129 states and 39743 transitions. [2021-10-13 19:16:19,863 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 19:16:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9129 states and 39743 transitions. [2021-10-13 19:16:19,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:16:19,867 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:19,867 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:16:19,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 19:16:19,868 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:19,871 INFO L82 PathProgramCache]: Analyzing trace with hash -22093565, now seen corresponding path program 1 times [2021-10-13 19:16:19,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:19,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087196953] [2021-10-13 19:16:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:19,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:19,977 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 19:16:19,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:19,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087196953] [2021-10-13 19:16:19,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087196953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:19,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386252217] [2021-10-13 19:16:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:19,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:19,980 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 19:16:20,000 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 19:16:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:20,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 19:16:20,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:20,194 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 19:16:20,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386252217] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:20,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:20,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-10-13 19:16:20,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399772849] [2021-10-13 19:16:20,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:16:20,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:20,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:16:20,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:16:20,197 INFO L87 Difference]: Start difference. First operand 9129 states and 39743 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 19:16:20,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:20,508 INFO L93 Difference]: Finished difference Result 10379 states and 43623 transitions. [2021-10-13 19:16:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:16:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 19:16:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:20,605 INFO L225 Difference]: With dead ends: 10379 [2021-10-13 19:16:20,605 INFO L226 Difference]: Without dead ends: 10371 [2021-10-13 19:16:20,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 50.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:20,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2021-10-13 19:16:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 9178. [2021-10-13 19:16:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9178 states, 8395 states have (on average 4.7821322215604525) internal successors, (40146), 9177 states have internal predecessors, (40146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9178 states to 9178 states and 40146 transitions. [2021-10-13 19:16:21,008 INFO L78 Accepts]: Start accepts. Automaton has 9178 states and 40146 transitions. Word has length 6 [2021-10-13 19:16:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:21,009 INFO L470 AbstractCegarLoop]: Abstraction has 9178 states and 40146 transitions. [2021-10-13 19:16:21,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 19:16:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9178 states and 40146 transitions. [2021-10-13 19:16:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:16:21,010 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:21,010 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-13 19:16:21,035 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 19:16:21,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:21,212 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:21,213 INFO L82 PathProgramCache]: Analyzing trace with hash -687182932, now seen corresponding path program 2 times [2021-10-13 19:16:21,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:21,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188650314] [2021-10-13 19:16:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:21,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:21,452 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 19:16:21,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:21,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188650314] [2021-10-13 19:16:21,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188650314] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:21,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817095813] [2021-10-13 19:16:21,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:16:21,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:21,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:21,456 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 19:16:21,458 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 19:16:21,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:16:21,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:16:21,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 19:16:21,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:21,943 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 19:16:22,027 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:22,027 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 19:16:22,099 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:16:22,100 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 25 treesize of output 18 [2021-10-13 19:16:22,113 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 19:16:22,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817095813] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:22,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:22,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-13 19:16:22,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321285959] [2021-10-13 19:16:22,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:16:22,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:22,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:16:22,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:22,120 INFO L87 Difference]: Start difference. First operand 9178 states and 40146 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) 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 19:16:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:22,534 INFO L93 Difference]: Finished difference Result 15891 states and 68459 transitions. [2021-10-13 19:16:22,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:22,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) 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 7 [2021-10-13 19:16:22,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:22,679 INFO L225 Difference]: With dead ends: 15891 [2021-10-13 19:16:22,680 INFO L226 Difference]: Without dead ends: 15891 [2021-10-13 19:16:22,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:16:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15891 states. [2021-10-13 19:16:23,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15891 to 10272. [2021-10-13 19:16:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10272 states, 9489 states have (on average 4.856781536515966) internal successors, (46086), 10271 states have internal predecessors, (46086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10272 states to 10272 states and 46086 transitions. [2021-10-13 19:16:23,513 INFO L78 Accepts]: Start accepts. Automaton has 10272 states and 46086 transitions. Word has length 7 [2021-10-13 19:16:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:23,513 INFO L470 AbstractCegarLoop]: Abstraction has 10272 states and 46086 transitions. [2021-10-13 19:16:23,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) 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 19:16:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 10272 states and 46086 transitions. [2021-10-13 19:16:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:16:23,514 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:23,514 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-13 19:16:23,554 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 19:16:23,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-13 19:16:23,728 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:23,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:23,729 INFO L82 PathProgramCache]: Analyzing trace with hash -687182929, now seen corresponding path program 1 times [2021-10-13 19:16:23,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:23,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480597902] [2021-10-13 19:16:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:23,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:23,867 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 19:16:23,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:23,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480597902] [2021-10-13 19:16:23,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480597902] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:23,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959820633] [2021-10-13 19:16:23,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:23,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:23,870 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 19:16:23,882 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 19:16:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:24,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 19:16:24,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:24,068 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 19:16:24,132 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:24,132 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 19:16:24,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 19:16:24,179 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 19:16:24,180 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 19 treesize of output 10 [2021-10-13 19:16:24,195 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 19:16:24,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959820633] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:24,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:24,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-13 19:16:24,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730372950] [2021-10-13 19:16:24,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:16:24,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:24,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:16:24,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:16:24,197 INFO L87 Difference]: Start difference. First operand 10272 states and 46086 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 19:16:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:24,709 INFO L93 Difference]: Finished difference Result 19623 states and 82844 transitions. [2021-10-13 19:16:24,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:16:24,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 7 [2021-10-13 19:16:24,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:24,840 INFO L225 Difference]: With dead ends: 19623 [2021-10-13 19:16:24,840 INFO L226 Difference]: Without dead ends: 19623 [2021-10-13 19:16:24,841 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 173.2ms TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:16:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19623 states. [2021-10-13 19:16:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19623 to 10272. [2021-10-13 19:16:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10272 states, 9489 states have (on average 4.741490146485404) internal successors, (44992), 10271 states have internal predecessors, (44992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10272 states to 10272 states and 44992 transitions. [2021-10-13 19:16:25,695 INFO L78 Accepts]: Start accepts. Automaton has 10272 states and 44992 transitions. Word has length 7 [2021-10-13 19:16:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 10272 states and 44992 transitions. [2021-10-13 19:16:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 19:16:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand 10272 states and 44992 transitions. [2021-10-13 19:16:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:16:25,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:25,698 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:25,742 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 19:16:25,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:25,914 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:25,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:25,915 INFO L82 PathProgramCache]: Analyzing trace with hash 172167060, now seen corresponding path program 1 times [2021-10-13 19:16:25,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:25,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943489622] [2021-10-13 19:16:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:25,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:26,005 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 19:16:26,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:26,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943489622] [2021-10-13 19:16:26,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943489622] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:26,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058187670] [2021-10-13 19:16:26,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:26,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:26,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:26,008 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 19:16:26,043 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 19:16:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:26,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:16:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 19:16:26,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058187670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:26,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:16:26,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2021-10-13 19:16:26,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983470616] [2021-10-13 19:16:26,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:26,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:26,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:26,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:16:26,203 INFO L87 Difference]: Start difference. First operand 10272 states and 44992 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:26,274 INFO L93 Difference]: Finished difference Result 6496 states and 28315 transitions. [2021-10-13 19:16:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:26,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:16:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:26,304 INFO L225 Difference]: With dead ends: 6496 [2021-10-13 19:16:26,304 INFO L226 Difference]: Without dead ends: 6496 [2021-10-13 19:16:26,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 34.8ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:16:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2021-10-13 19:16:26,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 5737. [2021-10-13 19:16:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 5414 states have (on average 4.524935352789066) internal successors, (24498), 5736 states have internal predecessors, (24498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 24498 transitions. [2021-10-13 19:16:26,512 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 24498 transitions. Word has length 8 [2021-10-13 19:16:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:26,513 INFO L470 AbstractCegarLoop]: Abstraction has 5737 states and 24498 transitions. [2021-10-13 19:16:26,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 24498 transitions. [2021-10-13 19:16:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:16:26,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:26,514 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:26,540 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 19:16:26,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 19:16:26,718 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:26,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:26,719 INFO L82 PathProgramCache]: Analyzing trace with hash 172250114, now seen corresponding path program 1 times [2021-10-13 19:16:26,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:26,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443091409] [2021-10-13 19:16:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:26,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:26,906 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 19:16:26,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:26,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443091409] [2021-10-13 19:16:26,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443091409] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:26,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190319794] [2021-10-13 19:16:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:26,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:26,909 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 19:16:26,919 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 19:16:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:27,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 19:16:27,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:27,115 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 19:16:27,298 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:27,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:16:27,368 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:27,369 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 19:16:27,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:16:27,411 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 19:16:27,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190319794] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:27,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:27,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:16:27,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970131433] [2021-10-13 19:16:27,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:16:27,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:27,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:16:27,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:16:27,415 INFO L87 Difference]: Start difference. First operand 5737 states and 24498 transitions. Second operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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 19:16:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:28,026 INFO L93 Difference]: Finished difference Result 10098 states and 42295 transitions. [2021-10-13 19:16:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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 8 [2021-10-13 19:16:28,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:28,083 INFO L225 Difference]: With dead ends: 10098 [2021-10-13 19:16:28,083 INFO L226 Difference]: Without dead ends: 10098 [2021-10-13 19:16:28,083 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 423.7ms TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:16:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10098 states. [2021-10-13 19:16:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10098 to 6471. [2021-10-13 19:16:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6148 states have (on average 4.631099544567339) internal successors, (28472), 6470 states have internal predecessors, (28472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 28472 transitions. [2021-10-13 19:16:28,373 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 28472 transitions. Word has length 8 [2021-10-13 19:16:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:28,374 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 28472 transitions. [2021-10-13 19:16:28,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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 19:16:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 28472 transitions. [2021-10-13 19:16:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:16:28,375 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:28,375 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:28,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-13 19:16:28,588 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,SelfDestructingSolverStorable14 [2021-10-13 19:16:28,589 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:28,590 INFO L82 PathProgramCache]: Analyzing trace with hash 172250117, now seen corresponding path program 1 times [2021-10-13 19:16:28,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:28,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815525849] [2021-10-13 19:16:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,789 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 19:16:28,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:28,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815525849] [2021-10-13 19:16:28,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815525849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:28,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118843897] [2021-10-13 19:16:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:28,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:28,793 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 19:16:28,812 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 19:16:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:16:28,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:29,044 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 19:16:29,153 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:16:29,153 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 34 treesize of output 33 [2021-10-13 19:16:29,256 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:16:29,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 33 [2021-10-13 19:16:29,339 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-10-13 19:16:29,340 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 30 treesize of output 16 [2021-10-13 19:16:29,362 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 19:16:29,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118843897] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:29,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:29,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-10-13 19:16:29,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300716461] [2021-10-13 19:16:29,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 19:16:29,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 19:16:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:16:29,364 INFO L87 Difference]: Start difference. First operand 6471 states and 28472 transitions. Second operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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 19:16:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:30,819 INFO L93 Difference]: Finished difference Result 16894 states and 72543 transitions. [2021-10-13 19:16:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:16:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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 8 [2021-10-13 19:16:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:30,927 INFO L225 Difference]: With dead ends: 16894 [2021-10-13 19:16:30,927 INFO L226 Difference]: Without dead ends: 16894 [2021-10-13 19:16:30,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 731.1ms TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:16:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16894 states. [2021-10-13 19:16:31,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16894 to 7223. [2021-10-13 19:16:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7223 states, 6900 states have (on average 4.7101449275362315) internal successors, (32500), 7222 states have internal predecessors, (32500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:31,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 32500 transitions. [2021-10-13 19:16:31,197 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 32500 transitions. Word has length 8 [2021-10-13 19:16:31,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:31,197 INFO L470 AbstractCegarLoop]: Abstraction has 7223 states and 32500 transitions. [2021-10-13 19:16:31,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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 19:16:31,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 32500 transitions. [2021-10-13 19:16:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:16:31,199 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:31,199 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:31,225 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 19:16:31,407 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,SelfDestructingSolverStorable15 [2021-10-13 19:16:31,409 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:31,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:31,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1780548474, now seen corresponding path program 1 times [2021-10-13 19:16:31,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:31,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505224011] [2021-10-13 19:16:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:31,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:31,441 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 19:16:31,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:31,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505224011] [2021-10-13 19:16:31,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505224011] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:31,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:31,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:31,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992587885] [2021-10-13 19:16:31,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:31,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:31,444 INFO L87 Difference]: Start difference. First operand 7223 states and 32500 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 19:16:31,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:31,523 INFO L93 Difference]: Finished difference Result 5635 states and 25281 transitions. [2021-10-13 19:16:31,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:31,523 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 19:16:31,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:31,637 INFO L225 Difference]: With dead ends: 5635 [2021-10-13 19:16:31,637 INFO L226 Difference]: Without dead ends: 5635 [2021-10-13 19:16:31,638 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 19:16:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5635 states. [2021-10-13 19:16:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5635 to 5635. [2021-10-13 19:16:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5635 states, 5411 states have (on average 4.672149325448161) internal successors, (25281), 5634 states have internal predecessors, (25281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5635 states to 5635 states and 25281 transitions. [2021-10-13 19:16:31,853 INFO L78 Accepts]: Start accepts. Automaton has 5635 states and 25281 transitions. Word has length 8 [2021-10-13 19:16:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:31,854 INFO L470 AbstractCegarLoop]: Abstraction has 5635 states and 25281 transitions. [2021-10-13 19:16:31,854 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 19:16:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5635 states and 25281 transitions. [2021-10-13 19:16:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:16:31,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:31,855 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:31,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 19:16:31,856 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:31,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:31,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1780548423, now seen corresponding path program 1 times [2021-10-13 19:16:31,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:31,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774719576] [2021-10-13 19:16:31,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:31,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:31,890 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 19:16:31,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:31,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774719576] [2021-10-13 19:16:31,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774719576] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:31,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:31,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:31,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042223471] [2021-10-13 19:16:31,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:31,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:31,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:31,893 INFO L87 Difference]: Start difference. First operand 5635 states and 25281 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 19:16:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:31,964 INFO L93 Difference]: Finished difference Result 4247 states and 18976 transitions. [2021-10-13 19:16:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:31,964 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 19:16:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:31,992 INFO L225 Difference]: With dead ends: 4247 [2021-10-13 19:16:31,993 INFO L226 Difference]: Without dead ends: 4247 [2021-10-13 19:16:31,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:32,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2021-10-13 19:16:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4247. [2021-10-13 19:16:32,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4247 states, 4104 states have (on average 4.623781676413255) internal successors, (18976), 4246 states have internal predecessors, (18976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 18976 transitions. [2021-10-13 19:16:32,124 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 18976 transitions. Word has length 8 [2021-10-13 19:16:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:32,125 INFO L470 AbstractCegarLoop]: Abstraction has 4247 states and 18976 transitions. [2021-10-13 19:16:32,125 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 19:16:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 18976 transitions. [2021-10-13 19:16:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:16:32,126 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:32,126 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:32,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 19:16:32,126 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:32,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1780548419, now seen corresponding path program 1 times [2021-10-13 19:16:32,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:32,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346792662] [2021-10-13 19:16:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:32,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:32,160 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 19:16:32,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:32,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346792662] [2021-10-13 19:16:32,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346792662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:32,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:32,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:16:32,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538243285] [2021-10-13 19:16:32,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:16:32,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:16:32,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:32,163 INFO L87 Difference]: Start difference. First operand 4247 states and 18976 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 19:16:32,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:32,209 INFO L93 Difference]: Finished difference Result 3059 states and 13585 transitions. [2021-10-13 19:16:32,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:16:32,210 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 19:16:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:32,226 INFO L225 Difference]: With dead ends: 3059 [2021-10-13 19:16:32,227 INFO L226 Difference]: Without dead ends: 3059 [2021-10-13 19:16:32,227 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:16:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-10-13 19:16:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3059. [2021-10-13 19:16:32,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 2979 states have (on average 4.560255119167506) internal successors, (13585), 3058 states have internal predecessors, (13585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 13585 transitions. [2021-10-13 19:16:32,330 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 13585 transitions. Word has length 8 [2021-10-13 19:16:32,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:32,330 INFO L470 AbstractCegarLoop]: Abstraction has 3059 states and 13585 transitions. [2021-10-13 19:16:32,330 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 19:16:32,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 13585 transitions. [2021-10-13 19:16:32,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:16:32,331 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:32,331 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:32,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 19:16:32,331 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:32,332 INFO L82 PathProgramCache]: Analyzing trace with hash 971495534, now seen corresponding path program 2 times [2021-10-13 19:16:32,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:32,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277248108] [2021-10-13 19:16:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:32,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:32,519 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 19:16:32,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:32,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277248108] [2021-10-13 19:16:32,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277248108] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:32,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91681718] [2021-10-13 19:16:32,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:16:32,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:32,521 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 19:16:32,547 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 19:16:32,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:16:32,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:16:32,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:16:32,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:32,812 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 19:16:32,875 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:32,876 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 19:16:32,949 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:32,950 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 19:16:33,019 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:33,019 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 19:16:33,054 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 19:16:33,056 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 19:16:33,057 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 19 treesize of output 10 [2021-10-13 19:16:33,075 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 19:16:33,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91681718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:33,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:33,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-13 19:16:33,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333577140] [2021-10-13 19:16:33,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:16:33,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:33,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:16:33,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:16:33,078 INFO L87 Difference]: Start difference. First operand 3059 states and 13585 transitions. Second operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 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 19:16:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:33,521 INFO L93 Difference]: Finished difference Result 6103 states and 25502 transitions. [2021-10-13 19:16:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:16:33,521 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 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 9 [2021-10-13 19:16:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:33,564 INFO L225 Difference]: With dead ends: 6103 [2021-10-13 19:16:33,565 INFO L226 Difference]: Without dead ends: 6103 [2021-10-13 19:16:33,565 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 302.0ms TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:16:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6103 states. [2021-10-13 19:16:33,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6103 to 2748. [2021-10-13 19:16:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2668 states have (on average 4.4666416791604195) internal successors, (11917), 2747 states have internal predecessors, (11917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 11917 transitions. [2021-10-13 19:16:33,714 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 11917 transitions. Word has length 9 [2021-10-13 19:16:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:33,715 INFO L470 AbstractCegarLoop]: Abstraction has 2748 states and 11917 transitions. [2021-10-13 19:16:33,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 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 19:16:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 11917 transitions. [2021-10-13 19:16:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:16:33,716 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:33,716 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 19:16:33,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-13 19:16:33,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:33,931 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:33,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:33,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1042212638, now seen corresponding path program 1 times [2021-10-13 19:16:33,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:33,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116349401] [2021-10-13 19:16:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:33,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:34,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:34,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116349401] [2021-10-13 19:16:34,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116349401] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:34,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177249839] [2021-10-13 19:16:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:34,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:34,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:34,010 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 19:16:34,032 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 19:16:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:34,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 19:16:34,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:34,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177249839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:34,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:34,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:16:34,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886205390] [2021-10-13 19:16:34,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:16:34,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:16:34,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:16:34,309 INFO L87 Difference]: Start difference. First operand 2748 states and 11917 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 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 19:16:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:34,492 INFO L93 Difference]: Finished difference Result 4801 states and 18863 transitions. [2021-10-13 19:16:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:16:34,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 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 19:16:34,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:34,521 INFO L225 Difference]: With dead ends: 4801 [2021-10-13 19:16:34,521 INFO L226 Difference]: Without dead ends: 4789 [2021-10-13 19:16:34,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 103.4ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:16:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4789 states. [2021-10-13 19:16:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4789 to 3322. [2021-10-13 19:16:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3322 states, 3242 states have (on average 4.445712523133868) internal successors, (14413), 3321 states have internal predecessors, (14413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3322 states to 3322 states and 14413 transitions. [2021-10-13 19:16:34,687 INFO L78 Accepts]: Start accepts. Automaton has 3322 states and 14413 transitions. Word has length 9 [2021-10-13 19:16:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:34,688 INFO L470 AbstractCegarLoop]: Abstraction has 3322 states and 14413 transitions. [2021-10-13 19:16:34,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 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 19:16:34,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3322 states and 14413 transitions. [2021-10-13 19:16:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:16:34,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:34,689 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:34,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 19:16:34,904 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,SelfDestructingSolverStorable20 [2021-10-13 19:16:34,904 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:34,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:34,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1044682766, now seen corresponding path program 1 times [2021-10-13 19:16:34,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:34,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008264763] [2021-10-13 19:16:34,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:34,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:35,081 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 19:16:35,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:35,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008264763] [2021-10-13 19:16:35,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008264763] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:35,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282473764] [2021-10-13 19:16:35,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:35,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:35,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:35,084 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 19:16:35,103 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 19:16:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:35,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 19:16:35,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:35,328 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 19:16:35,397 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:35,397 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 19:16:35,460 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:35,460 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 19:16:35,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:16:35,505 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 19:16:35,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282473764] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:35,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:35,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:16:35,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162581552] [2021-10-13 19:16:35,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 19:16:35,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 19:16:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:16:35,508 INFO L87 Difference]: Start difference. First operand 3322 states and 14413 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 19:16:36,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:36,154 INFO L93 Difference]: Finished difference Result 5774 states and 24441 transitions. [2021-10-13 19:16:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:16:36,155 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 9 [2021-10-13 19:16:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:36,187 INFO L225 Difference]: With dead ends: 5774 [2021-10-13 19:16:36,188 INFO L226 Difference]: Without dead ends: 5774 [2021-10-13 19:16:36,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 463.2ms TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:16:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5774 states. [2021-10-13 19:16:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5774 to 3856. [2021-10-13 19:16:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3776 states have (on average 4.547139830508475) internal successors, (17170), 3855 states have internal predecessors, (17170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:36,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 17170 transitions. [2021-10-13 19:16:36,381 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 17170 transitions. Word has length 9 [2021-10-13 19:16:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:36,382 INFO L470 AbstractCegarLoop]: Abstraction has 3856 states and 17170 transitions. [2021-10-13 19:16:36,382 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 19:16:36,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 17170 transitions. [2021-10-13 19:16:36,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:16:36,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:36,382 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:36,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-13 19:16:36,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:36,584 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:36,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1044682769, now seen corresponding path program 1 times [2021-10-13 19:16:36,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:36,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450983351] [2021-10-13 19:16:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:36,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:36,811 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 19:16:36,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:36,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450983351] [2021-10-13 19:16:36,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450983351] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:36,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697366986] [2021-10-13 19:16:36,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:36,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:36,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:36,814 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 19:16:36,835 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 19:16:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:37,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 19:16:37,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:37,073 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 19:16:37,139 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:37,140 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 19:16:37,205 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:37,206 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 24 treesize of output 23 [2021-10-13 19:16:37,251 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:16:37,251 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 27 treesize of output 20 [2021-10-13 19:16:37,257 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 19:16:37,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697366986] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:37,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:37,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 19:16:37,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420996929] [2021-10-13 19:16:37,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:16:37,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:37,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:16:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:16:37,259 INFO L87 Difference]: Start difference. First operand 3856 states and 17170 transitions. Second operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 19:16:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:37,543 INFO L93 Difference]: Finished difference Result 5009 states and 21171 transitions. [2021-10-13 19:16:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:37,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 19:16:37,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:37,564 INFO L225 Difference]: With dead ends: 5009 [2021-10-13 19:16:37,564 INFO L226 Difference]: Without dead ends: 5003 [2021-10-13 19:16:37,564 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:16:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5003 states. [2021-10-13 19:16:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5003 to 4209. [2021-10-13 19:16:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4129 states have (on average 4.488011625090821) internal successors, (18531), 4208 states have internal predecessors, (18531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 18531 transitions. [2021-10-13 19:16:37,678 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 18531 transitions. Word has length 9 [2021-10-13 19:16:37,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:37,679 INFO L470 AbstractCegarLoop]: Abstraction has 4209 states and 18531 transitions. [2021-10-13 19:16:37,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 19:16:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 18531 transitions. [2021-10-13 19:16:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:16:37,680 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:37,680 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:37,721 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 19:16:37,893 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,SelfDestructingSolverStorable22 [2021-10-13 19:16:37,894 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:37,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:37,895 INFO L82 PathProgramCache]: Analyzing trace with hash 637574967, now seen corresponding path program 1 times [2021-10-13 19:16:37,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:37,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862167098] [2021-10-13 19:16:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:37,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:38,120 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 19:16:38,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:38,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862167098] [2021-10-13 19:16:38,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862167098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:38,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:38,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:16:38,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380853980] [2021-10-13 19:16:38,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:38,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:38,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:38,125 INFO L87 Difference]: Start difference. First operand 4209 states and 18531 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:38,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:38,199 INFO L93 Difference]: Finished difference Result 4282 states and 18684 transitions. [2021-10-13 19:16:38,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:16:38,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 19:16:38,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:38,218 INFO L225 Difference]: With dead ends: 4282 [2021-10-13 19:16:38,218 INFO L226 Difference]: Without dead ends: 4209 [2021-10-13 19:16:38,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-10-13 19:16:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2021-10-13 19:16:38,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4129 states have (on average 4.487769435698716) internal successors, (18530), 4208 states have internal predecessors, (18530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 18530 transitions. [2021-10-13 19:16:38,335 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 18530 transitions. Word has length 9 [2021-10-13 19:16:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:38,335 INFO L470 AbstractCegarLoop]: Abstraction has 4209 states and 18530 transitions. [2021-10-13 19:16:38,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 18530 transitions. [2021-10-13 19:16:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:38,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:38,336 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2021-10-13 19:16:38,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 19:16:38,337 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:38,337 INFO L82 PathProgramCache]: Analyzing trace with hash 49016789, now seen corresponding path program 2 times [2021-10-13 19:16:38,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:38,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955358909] [2021-10-13 19:16:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:38,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:38,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:38,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955358909] [2021-10-13 19:16:38,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955358909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:38,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328931478] [2021-10-13 19:16:38,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:16:38,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:38,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:38,527 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 19:16:38,536 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 19:16:38,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:16:38,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:16:38,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:16:38,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:38,840 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 19:16:38,928 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:16:38,928 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 19:16:39,081 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:16:39,081 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 36 treesize of output 23 [2021-10-13 19:16:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:39,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328931478] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:39,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:39,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:16:39,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201595597] [2021-10-13 19:16:39,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:16:39,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:39,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:16:39,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:16:39,088 INFO L87 Difference]: Start difference. First operand 4209 states and 18530 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 19:16:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:40,356 INFO L93 Difference]: Finished difference Result 6756 states and 28031 transitions. [2021-10-13 19:16:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:16:40,356 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 10 [2021-10-13 19:16:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:40,389 INFO L225 Difference]: With dead ends: 6756 [2021-10-13 19:16:40,390 INFO L226 Difference]: Without dead ends: 6756 [2021-10-13 19:16:40,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 868.4ms TimeCoverageRelationStatistics Valid=141, Invalid=789, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:16:40,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2021-10-13 19:16:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 4528. [2021-10-13 19:16:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4448 states have (on average 4.545413669064748) internal successors, (20218), 4527 states have internal predecessors, (20218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 20218 transitions. [2021-10-13 19:16:40,562 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 20218 transitions. Word has length 10 [2021-10-13 19:16:40,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:40,562 INFO L470 AbstractCegarLoop]: Abstraction has 4528 states and 20218 transitions. [2021-10-13 19:16:40,562 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 19:16:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 20218 transitions. [2021-10-13 19:16:40,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:40,563 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:40,563 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2021-10-13 19:16:40,587 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 19:16:40,764 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,SelfDestructingSolverStorable24 [2021-10-13 19:16:40,764 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:40,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:40,765 INFO L82 PathProgramCache]: Analyzing trace with hash 49016792, now seen corresponding path program 1 times [2021-10-13 19:16:40,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:40,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948950402] [2021-10-13 19:16:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:40,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:40,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:40,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948950402] [2021-10-13 19:16:40,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948950402] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:40,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288624357] [2021-10-13 19:16:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:40,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:40,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:40,952 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 19:16:40,956 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 19:16:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:41,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:16:41,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:41,250 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 19:16:41,314 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:41,315 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 19:16:41,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:16:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:41,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288624357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:41,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:41,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:16:41,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568589206] [2021-10-13 19:16:41,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:16:41,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:16:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:16:41,387 INFO L87 Difference]: Start difference. First operand 4528 states and 20218 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 19:16:41,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:41,929 INFO L93 Difference]: Finished difference Result 7065 states and 29388 transitions. [2021-10-13 19:16:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:16:41,930 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 10 [2021-10-13 19:16:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:41,957 INFO L225 Difference]: With dead ends: 7065 [2021-10-13 19:16:41,957 INFO L226 Difference]: Without dead ends: 7065 [2021-10-13 19:16:41,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 356.8ms TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:16:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2021-10-13 19:16:42,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 4530. [2021-10-13 19:16:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 4450 states have (on average 4.544269662921348) internal successors, (20222), 4529 states have internal predecessors, (20222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:42,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 20222 transitions. [2021-10-13 19:16:42,085 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 20222 transitions. Word has length 10 [2021-10-13 19:16:42,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:42,091 INFO L470 AbstractCegarLoop]: Abstraction has 4530 states and 20222 transitions. [2021-10-13 19:16:42,091 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 19:16:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 20222 transitions. [2021-10-13 19:16:42,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:42,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:42,092 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:42,119 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 19:16:42,305 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,SelfDestructingSolverStorable25 [2021-10-13 19:16:42,306 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:42,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:42,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1974494992, now seen corresponding path program 1 times [2021-10-13 19:16:42,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:42,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886555582] [2021-10-13 19:16:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:42,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:42,524 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 19:16:42,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:42,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886555582] [2021-10-13 19:16:42,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886555582] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:42,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124408] [2021-10-13 19:16:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:42,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:42,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:42,530 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 19:16:42,537 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 19:16:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:42,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 19:16:42,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:42,851 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 19:16:42,930 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:42,931 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 19:16:42,997 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:42,998 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 28 treesize of output 27 [2021-10-13 19:16:43,057 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:43,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:16:43,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:16:43,098 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 19:16:43,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124408] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:43,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:43,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:16:43,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075003309] [2021-10-13 19:16:43,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:16:43,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:16:43,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:16:43,100 INFO L87 Difference]: Start difference. First operand 4530 states and 20222 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 19:16:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:43,772 INFO L93 Difference]: Finished difference Result 6719 states and 29592 transitions. [2021-10-13 19:16:43,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:16:43,773 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 10 [2021-10-13 19:16:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:43,802 INFO L225 Difference]: With dead ends: 6719 [2021-10-13 19:16:43,802 INFO L226 Difference]: Without dead ends: 6719 [2021-10-13 19:16:43,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 534.5ms TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:16:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6719 states. [2021-10-13 19:16:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6719 to 4696. [2021-10-13 19:16:43,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 4616 states have (on average 4.558058925476603) internal successors, (21040), 4695 states have internal predecessors, (21040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 21040 transitions. [2021-10-13 19:16:43,985 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 21040 transitions. Word has length 10 [2021-10-13 19:16:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:43,985 INFO L470 AbstractCegarLoop]: Abstraction has 4696 states and 21040 transitions. [2021-10-13 19:16:43,985 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 19:16:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 21040 transitions. [2021-10-13 19:16:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:43,986 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:43,986 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:44,012 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 19:16:44,191 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,SelfDestructingSolverStorable26 [2021-10-13 19:16:44,192 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:44,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:44,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1974494989, now seen corresponding path program 1 times [2021-10-13 19:16:44,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:44,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302254360] [2021-10-13 19:16:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:44,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:44,441 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 19:16:44,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:44,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302254360] [2021-10-13 19:16:44,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302254360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:44,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617705762] [2021-10-13 19:16:44,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:44,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:44,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:44,446 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 19:16:44,456 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 19:16:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:44,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 19:16:44,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:44,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:16:44,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 461 [2021-10-13 19:16:44,891 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 19:16:44,972 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:44,973 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 19:16:45,043 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:45,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:16:45,091 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:45,091 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 19:16:45,119 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:16:45,120 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 27 treesize of output 20 [2021-10-13 19:16:45,125 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 19:16:45,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617705762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:45,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:45,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-13 19:16:45,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996829685] [2021-10-13 19:16:45,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:16:45,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:45,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:16:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:16:45,128 INFO L87 Difference]: Start difference. First operand 4696 states and 21040 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 19:16:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:45,572 INFO L93 Difference]: Finished difference Result 5454 states and 23736 transitions. [2021-10-13 19:16:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:45,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 10 [2021-10-13 19:16:45,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:45,613 INFO L225 Difference]: With dead ends: 5454 [2021-10-13 19:16:45,613 INFO L226 Difference]: Without dead ends: 5448 [2021-10-13 19:16:45,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 201.5ms TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:16:45,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2021-10-13 19:16:45,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 4518. [2021-10-13 19:16:45,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 4438 states have (on average 4.547543938711131) internal successors, (20182), 4517 states have internal predecessors, (20182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 20182 transitions. [2021-10-13 19:16:45,826 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 20182 transitions. Word has length 10 [2021-10-13 19:16:45,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:45,827 INFO L470 AbstractCegarLoop]: Abstraction has 4518 states and 20182 transitions. [2021-10-13 19:16:45,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 19:16:45,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 20182 transitions. [2021-10-13 19:16:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:45,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:45,828 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:45,856 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 19:16:46,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-13 19:16:46,029 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:46,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:46,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1974495350, now seen corresponding path program 1 times [2021-10-13 19:16:46,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:46,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964162184] [2021-10-13 19:16:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:46,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:46,282 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 19:16:46,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:46,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964162184] [2021-10-13 19:16:46,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964162184] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:46,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673840482] [2021-10-13 19:16:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:46,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:46,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:46,285 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 19:16:46,309 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 19:16:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:46,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 19:16:46,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:46,630 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 19:16:46,705 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:46,706 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 19:16:46,780 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:46,780 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 19:16:46,840 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:46,841 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 28 treesize of output 27 [2021-10-13 19:16:46,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:16:46,881 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 19:16:46,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673840482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:46,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:46,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:16:46,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073538044] [2021-10-13 19:16:46,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:16:46,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:46,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:16:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:16:46,884 INFO L87 Difference]: Start difference. First operand 4518 states and 20182 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 19:16:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:47,424 INFO L93 Difference]: Finished difference Result 6779 states and 29693 transitions. [2021-10-13 19:16:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:16:47,425 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 10 [2021-10-13 19:16:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:47,458 INFO L225 Difference]: With dead ends: 6779 [2021-10-13 19:16:47,459 INFO L226 Difference]: Without dead ends: 6779 [2021-10-13 19:16:47,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 455.3ms TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:16:47,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2021-10-13 19:16:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 4628. [2021-10-13 19:16:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4548 states have (on average 4.5551890941073) internal successors, (20717), 4627 states have internal predecessors, (20717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 20717 transitions. [2021-10-13 19:16:47,655 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 20717 transitions. Word has length 10 [2021-10-13 19:16:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:47,656 INFO L470 AbstractCegarLoop]: Abstraction has 4628 states and 20717 transitions. [2021-10-13 19:16:47,656 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 19:16:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 20717 transitions. [2021-10-13 19:16:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:47,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:47,657 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:47,691 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 19:16:47,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-13 19:16:47,872 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:47,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1974495347, now seen corresponding path program 1 times [2021-10-13 19:16:47,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:47,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808303847] [2021-10-13 19:16:47,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:47,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:48,111 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 19:16:48,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:48,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808303847] [2021-10-13 19:16:48,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808303847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:48,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697448372] [2021-10-13 19:16:48,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:48,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:48,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:48,115 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 19:16:48,137 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 19:16:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:48,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:16:48,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:48,480 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 19:16:48,552 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:48,554 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 19:16:48,629 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:48,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:16:48,701 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:16:48,701 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 19:16:48,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 19:16:48,734 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 19:16:48,737 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 19 treesize of output 10 [2021-10-13 19:16:48,754 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 19:16:48,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697448372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:48,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:48,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-13 19:16:48,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300125304] [2021-10-13 19:16:48,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:16:48,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:48,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:16:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:16:48,757 INFO L87 Difference]: Start difference. First operand 4628 states and 20717 transitions. Second operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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 19:16:49,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:49,345 INFO L93 Difference]: Finished difference Result 8240 states and 35537 transitions. [2021-10-13 19:16:49,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:16:49,345 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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 10 [2021-10-13 19:16:49,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:49,395 INFO L225 Difference]: With dead ends: 8240 [2021-10-13 19:16:49,396 INFO L226 Difference]: Without dead ends: 8236 [2021-10-13 19:16:49,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 328.0ms TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:16:49,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2021-10-13 19:16:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 4500. [2021-10-13 19:16:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4500 states, 4420 states have (on average 4.549095022624434) internal successors, (20107), 4499 states have internal predecessors, (20107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:49,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4500 states to 4500 states and 20107 transitions. [2021-10-13 19:16:49,727 INFO L78 Accepts]: Start accepts. Automaton has 4500 states and 20107 transitions. Word has length 10 [2021-10-13 19:16:49,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:49,728 INFO L470 AbstractCegarLoop]: Abstraction has 4500 states and 20107 transitions. [2021-10-13 19:16:49,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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 19:16:49,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4500 states and 20107 transitions. [2021-10-13 19:16:49,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:16:49,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:49,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:49,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-13 19:16:49,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:49,943 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:49,944 INFO L82 PathProgramCache]: Analyzing trace with hash -355620882, now seen corresponding path program 1 times [2021-10-13 19:16:49,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:49,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976623174] [2021-10-13 19:16:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:49,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:49,990 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 19:16:49,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:49,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976623174] [2021-10-13 19:16:49,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976623174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:49,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908275473] [2021-10-13 19:16:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:49,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:49,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:49,992 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 19:16:50,015 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 19:16:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:50,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 19:16:50,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:50,349 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 19:16:50,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908275473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:50,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:50,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-10-13 19:16:50,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984908733] [2021-10-13 19:16:50,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:16:50,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:16:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:16:50,351 INFO L87 Difference]: Start difference. First operand 4500 states and 20107 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 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 19:16:50,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:50,457 INFO L93 Difference]: Finished difference Result 4572 states and 20259 transitions. [2021-10-13 19:16:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:16:50,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 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 19:16:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:50,495 INFO L225 Difference]: With dead ends: 4572 [2021-10-13 19:16:50,495 INFO L226 Difference]: Without dead ends: 4499 [2021-10-13 19:16:50,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:16:50,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2021-10-13 19:16:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4499. [2021-10-13 19:16:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4419 states have (on average 4.549671871464132) internal successors, (20105), 4498 states have internal predecessors, (20105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 20105 transitions. [2021-10-13 19:16:50,701 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 20105 transitions. Word has length 10 [2021-10-13 19:16:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:50,702 INFO L470 AbstractCegarLoop]: Abstraction has 4499 states and 20105 transitions. [2021-10-13 19:16:50,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 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 19:16:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 20105 transitions. [2021-10-13 19:16:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:16:50,703 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:50,703 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:50,728 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 19:16:50,919 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,SelfDestructingSolverStorable30 [2021-10-13 19:16:50,919 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:50,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:50,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1527013692, now seen corresponding path program 1 times [2021-10-13 19:16:50,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:50,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4223802] [2021-10-13 19:16:50,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:50,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:51,141 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 19:16:51,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:51,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4223802] [2021-10-13 19:16:51,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4223802] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:51,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597579133] [2021-10-13 19:16:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:51,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:51,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:51,145 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 19:16:51,158 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 19:16:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:51,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:16:51,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:51,638 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 19:16:51,716 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:51,717 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 28 treesize of output 27 [2021-10-13 19:16:51,811 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:51,812 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 19:16:51,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:16:51,860 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 19:16:51,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597579133] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:51,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:51,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:16:51,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062034566] [2021-10-13 19:16:51,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:16:51,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:51,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:16:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:16:51,863 INFO L87 Difference]: Start difference. First operand 4499 states and 20105 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 19:16:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:52,646 INFO L93 Difference]: Finished difference Result 6832 states and 29442 transitions. [2021-10-13 19:16:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:16:52,646 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 19:16:52,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:52,687 INFO L225 Difference]: With dead ends: 6832 [2021-10-13 19:16:52,687 INFO L226 Difference]: Without dead ends: 6832 [2021-10-13 19:16:52,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 583.5ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:16:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2021-10-13 19:16:52,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 4568. [2021-10-13 19:16:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4488 states have (on average 4.558155080213904) internal successors, (20457), 4567 states have internal predecessors, (20457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 20457 transitions. [2021-10-13 19:16:52,866 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 20457 transitions. Word has length 11 [2021-10-13 19:16:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:52,867 INFO L470 AbstractCegarLoop]: Abstraction has 4568 states and 20457 transitions. [2021-10-13 19:16:52,867 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 19:16:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 20457 transitions. [2021-10-13 19:16:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:16:52,868 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:52,868 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:52,893 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 19:16:53,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:53,069 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:53,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1527013695, now seen corresponding path program 1 times [2021-10-13 19:16:53,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:53,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137597279] [2021-10-13 19:16:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:53,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:53,470 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 19:16:53,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:53,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137597279] [2021-10-13 19:16:53,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137597279] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:53,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998423898] [2021-10-13 19:16:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:53,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:53,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:53,474 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 19:16:53,497 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 19:16:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:53,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:16:53,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:53,918 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 17 treesize of output 13 [2021-10-13 19:16:54,004 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:54,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:16:54,129 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:54,129 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 19:16:54,199 INFO L354 Elim1Store]: treesize reduction 12, result has 20.0 percent of original size [2021-10-13 19:16:54,199 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 22 treesize of output 10 [2021-10-13 19:16:54,226 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 19:16:54,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998423898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:54,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:54,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-13 19:16:54,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367923905] [2021-10-13 19:16:54,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 19:16:54,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:54,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 19:16:54,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:16:54,229 INFO L87 Difference]: Start difference. First operand 4568 states and 20457 transitions. Second operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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 19:16:55,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:55,373 INFO L93 Difference]: Finished difference Result 7822 states and 32994 transitions. [2021-10-13 19:16:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:16:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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 11 [2021-10-13 19:16:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:55,427 INFO L225 Difference]: With dead ends: 7822 [2021-10-13 19:16:55,427 INFO L226 Difference]: Without dead ends: 7822 [2021-10-13 19:16:55,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 835.4ms TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:16:55,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2021-10-13 19:16:55,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 4693. [2021-10-13 19:16:55,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4693 states, 4613 states have (on average 4.579449382180793) internal successors, (21125), 4692 states have internal predecessors, (21125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:55,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 21125 transitions. [2021-10-13 19:16:55,731 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 21125 transitions. Word has length 11 [2021-10-13 19:16:55,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:55,731 INFO L470 AbstractCegarLoop]: Abstraction has 4693 states and 21125 transitions. [2021-10-13 19:16:55,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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 19:16:55,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 21125 transitions. [2021-10-13 19:16:55,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:16:55,733 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:55,733 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:55,763 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 19:16:55,952 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,SelfDestructingSolverStorable32 [2021-10-13 19:16:55,952 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:55,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:55,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1526956635, now seen corresponding path program 1 times [2021-10-13 19:16:55,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:55,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361339166] [2021-10-13 19:16:55,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:55,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:56,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:56,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361339166] [2021-10-13 19:16:56,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361339166] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:56,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967871319] [2021-10-13 19:16:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:56,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:56,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:56,168 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 19:16:56,169 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 19:16:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:56,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:16:56,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:56,607 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 19:16:56,685 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:56,686 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 19:16:56,808 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:56,808 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 19:16:56,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:16:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:56,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967871319] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:56,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:56,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:16:56,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618132268] [2021-10-13 19:16:56,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:16:56,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:56,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:16:56,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:16:56,859 INFO L87 Difference]: Start difference. First operand 4693 states and 21125 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 19:16:57,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:57,682 INFO L93 Difference]: Finished difference Result 7534 states and 32607 transitions. [2021-10-13 19:16:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:16:57,683 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 19:16:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:57,719 INFO L225 Difference]: With dead ends: 7534 [2021-10-13 19:16:57,719 INFO L226 Difference]: Without dead ends: 7534 [2021-10-13 19:16:57,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 656.8ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:16:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7534 states. [2021-10-13 19:16:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7534 to 4756. [2021-10-13 19:16:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4756 states, 4676 states have (on average 4.588964927288281) internal successors, (21458), 4755 states have internal predecessors, (21458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4756 states to 4756 states and 21458 transitions. [2021-10-13 19:16:57,907 INFO L78 Accepts]: Start accepts. Automaton has 4756 states and 21458 transitions. Word has length 11 [2021-10-13 19:16:57,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:57,907 INFO L470 AbstractCegarLoop]: Abstraction has 4756 states and 21458 transitions. [2021-10-13 19:16:57,907 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 19:16:57,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4756 states and 21458 transitions. [2021-10-13 19:16:57,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:16:57,908 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:57,908 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:57,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-13 19:16:58,116 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,SelfDestructingSolverStorable33 [2021-10-13 19:16:58,117 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:16:58,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:58,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1526956638, now seen corresponding path program 1 times [2021-10-13 19:16:58,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:58,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359806177] [2021-10-13 19:16:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:58,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:58,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:58,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359806177] [2021-10-13 19:16:58,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359806177] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:58,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783944364] [2021-10-13 19:16:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:58,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:16:58,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:16:58,333 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 19:16:58,341 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 19:16:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:58,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:16:58,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:16:58,797 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 19:16:58,881 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:58,882 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 19:16:58,982 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:16:58,983 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 19:16:59,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:16:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:59,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783944364] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:16:59,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:16:59,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:16:59,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058904003] [2021-10-13 19:16:59,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:16:59,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:59,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:16:59,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:16:59,036 INFO L87 Difference]: Start difference. First operand 4756 states and 21458 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 19:16:59,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:59,847 INFO L93 Difference]: Finished difference Result 7534 states and 32234 transitions. [2021-10-13 19:16:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:16:59,848 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 19:16:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:59,888 INFO L225 Difference]: With dead ends: 7534 [2021-10-13 19:16:59,888 INFO L226 Difference]: Without dead ends: 7534 [2021-10-13 19:16:59,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 608.1ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-10-13 19:16:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7534 states. [2021-10-13 19:17:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7534 to 4756. [2021-10-13 19:17:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4756 states, 4676 states have (on average 4.575705731394354) internal successors, (21396), 4755 states have internal predecessors, (21396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4756 states to 4756 states and 21396 transitions. [2021-10-13 19:17:00,084 INFO L78 Accepts]: Start accepts. Automaton has 4756 states and 21396 transitions. Word has length 11 [2021-10-13 19:17:00,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:00,084 INFO L470 AbstractCegarLoop]: Abstraction has 4756 states and 21396 transitions. [2021-10-13 19:17:00,085 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 19:17:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4756 states and 21396 transitions. [2021-10-13 19:17:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:17:00,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:00,086 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:00,111 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 19:17:00,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:00,287 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:00,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1079921129, now seen corresponding path program 2 times [2021-10-13 19:17:00,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:00,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992846244] [2021-10-13 19:17:00,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:00,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:00,525 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 19:17:00,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:00,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992846244] [2021-10-13 19:17:00,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992846244] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:00,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006854672] [2021-10-13 19:17:00,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:17:00,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:00,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:00,530 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 19:17:00,550 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 19:17:00,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:17:00,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:17:00,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-13 19:17:00,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:00,971 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 19:17:01,073 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:01,074 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 26 treesize of output 25 [2021-10-13 19:17:01,159 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:01,159 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 26 treesize of output 25 [2021-10-13 19:17:01,249 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:01,250 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 19:17:01,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:17:01,314 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 19:17:01,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006854672] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:01,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:01,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:17:01,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695473053] [2021-10-13 19:17:01,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:17:01,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:01,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:17:01,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:17:01,317 INFO L87 Difference]: Start difference. First operand 4756 states and 21396 transitions. Second operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:01,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:01,774 INFO L93 Difference]: Finished difference Result 7633 states and 35357 transitions. [2021-10-13 19:17:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:17:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:01,816 INFO L225 Difference]: With dead ends: 7633 [2021-10-13 19:17:01,816 INFO L226 Difference]: Without dead ends: 7633 [2021-10-13 19:17:01,817 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 386.2ms TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:17:01,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2021-10-13 19:17:01,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 5737. [2021-10-13 19:17:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 5657 states have (on average 4.743680395969595) internal successors, (26835), 5736 states have internal predecessors, (26835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 26835 transitions. [2021-10-13 19:17:02,044 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 26835 transitions. Word has length 11 [2021-10-13 19:17:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:02,044 INFO L470 AbstractCegarLoop]: Abstraction has 5737 states and 26835 transitions. [2021-10-13 19:17:02,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:02,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 26835 transitions. [2021-10-13 19:17:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:17:02,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:02,045 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:02,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-13 19:17:02,246 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,SelfDestructingSolverStorable35 [2021-10-13 19:17:02,247 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:02,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:02,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1079921126, now seen corresponding path program 1 times [2021-10-13 19:17:02,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:02,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602550778] [2021-10-13 19:17:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:02,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:02,524 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 19:17:02,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:02,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602550778] [2021-10-13 19:17:02,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602550778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:02,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248583748] [2021-10-13 19:17:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:02,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:02,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:02,527 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 19:17:02,531 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 19:17:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:02,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:02,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:02,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:02,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:02,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 297 [2021-10-13 19:17:03,047 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 19:17:03,151 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:03,152 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 19:17:03,233 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:03,233 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 19:17:03,304 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:03,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:17:03,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:17:03,352 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 19:17:03,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248583748] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:03,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:03,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-13 19:17:03,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991394101] [2021-10-13 19:17:03,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:17:03,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:03,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:17:03,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:17:03,357 INFO L87 Difference]: Start difference. First operand 5737 states and 26835 transitions. Second operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:04,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:04,048 INFO L93 Difference]: Finished difference Result 7933 states and 35977 transitions. [2021-10-13 19:17:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:17:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:04,095 INFO L225 Difference]: With dead ends: 7933 [2021-10-13 19:17:04,095 INFO L226 Difference]: Without dead ends: 7933 [2021-10-13 19:17:04,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 564.8ms TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:17:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2021-10-13 19:17:04,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 6066. [2021-10-13 19:17:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6066 states, 5986 states have (on average 4.602572669562312) internal successors, (27551), 6065 states have internal predecessors, (27551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6066 states to 6066 states and 27551 transitions. [2021-10-13 19:17:04,286 INFO L78 Accepts]: Start accepts. Automaton has 6066 states and 27551 transitions. Word has length 11 [2021-10-13 19:17:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:04,287 INFO L470 AbstractCegarLoop]: Abstraction has 6066 states and 27551 transitions. [2021-10-13 19:17:04,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 6066 states and 27551 transitions. [2021-10-13 19:17:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:04,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:04,288 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:04,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-13 19:17:04,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:04,489 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash 92861826, now seen corresponding path program 1 times [2021-10-13 19:17:04,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:04,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186793279] [2021-10-13 19:17:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:04,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:04,748 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 19:17:04,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:04,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186793279] [2021-10-13 19:17:04,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186793279] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:04,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665060750] [2021-10-13 19:17:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:04,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:04,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:04,751 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 19:17:04,773 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 19:17:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:05,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:05,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:05,259 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 19:17:05,337 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:05,338 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 19:17:05,485 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:05,486 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 28 treesize of output 27 [2021-10-13 19:17:05,548 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:05,549 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 19:17:05,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:17:05,589 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 19:17:05,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665060750] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:05,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:05,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:17:05,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144862198] [2021-10-13 19:17:05,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:17:05,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:17:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:17:05,594 INFO L87 Difference]: Start difference. First operand 6066 states and 27551 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 19:17:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:06,900 INFO L93 Difference]: Finished difference Result 9296 states and 40435 transitions. [2021-10-13 19:17:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:17:06,900 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 19:17:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:06,967 INFO L225 Difference]: With dead ends: 9296 [2021-10-13 19:17:06,968 INFO L226 Difference]: Without dead ends: 9296 [2021-10-13 19:17:06,968 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 835.2ms TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2021-10-13 19:17:06,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9296 states. [2021-10-13 19:17:07,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9296 to 6172. [2021-10-13 19:17:07,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 6092 states have (on average 4.611785948785292) internal successors, (28095), 6171 states have internal predecessors, (28095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 28095 transitions. [2021-10-13 19:17:07,327 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 28095 transitions. Word has length 12 [2021-10-13 19:17:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:07,327 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 28095 transitions. [2021-10-13 19:17:07,327 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 19:17:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 28095 transitions. [2021-10-13 19:17:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:07,332 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:07,332 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:07,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-10-13 19:17:07,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-13 19:17:07,546 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:07,547 INFO L82 PathProgramCache]: Analyzing trace with hash 92861829, now seen corresponding path program 1 times [2021-10-13 19:17:07,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:07,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632348434] [2021-10-13 19:17:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:07,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:07,865 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 19:17:07,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:07,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632348434] [2021-10-13 19:17:07,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632348434] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:07,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849890398] [2021-10-13 19:17:07,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:07,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:07,868 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 19:17:07,882 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 19:17:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:08,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:17:08,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:08,479 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 19:17:08,613 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:17:08,613 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 33 [2021-10-13 19:17:08,812 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:17:08,813 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 33 [2021-10-13 19:17:08,944 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:17:08,944 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 33 [2021-10-13 19:17:09,044 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:17:09,044 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 36 treesize of output 23 [2021-10-13 19:17:09,073 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 19:17:09,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849890398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:09,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:09,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-10-13 19:17:09,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491823420] [2021-10-13 19:17:09,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:17:09,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:09,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:17:09,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:17:09,082 INFO L87 Difference]: Start difference. First operand 6172 states and 28095 transitions. Second operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 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 19:17:12,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:12,344 INFO L93 Difference]: Finished difference Result 11146 states and 47343 transitions. [2021-10-13 19:17:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 19:17:12,344 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 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 19:17:12,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:12,410 INFO L225 Difference]: With dead ends: 11146 [2021-10-13 19:17:12,411 INFO L226 Difference]: Without dead ends: 11146 [2021-10-13 19:17:12,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2296.1ms TimeCoverageRelationStatistics Valid=263, Invalid=1543, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:17:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11146 states. [2021-10-13 19:17:12,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11146 to 6098. [2021-10-13 19:17:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 6018 states have (on average 4.602027251578598) internal successors, (27695), 6097 states have internal predecessors, (27695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 27695 transitions. [2021-10-13 19:17:12,774 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 27695 transitions. Word has length 12 [2021-10-13 19:17:12,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:12,774 INFO L470 AbstractCegarLoop]: Abstraction has 6098 states and 27695 transitions. [2021-10-13 19:17:12,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 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 19:17:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 27695 transitions. [2021-10-13 19:17:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:12,776 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:12,776 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2021-10-13 19:17:12,826 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 19:17:12,991 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,SelfDestructingSolverStorable38 [2021-10-13 19:17:12,991 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:12,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:12,992 INFO L82 PathProgramCache]: Analyzing trace with hash -139459318, now seen corresponding path program 2 times [2021-10-13 19:17:12,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:12,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045194805] [2021-10-13 19:17:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:12,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:13,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:13,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045194805] [2021-10-13 19:17:13,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045194805] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:13,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673362365] [2021-10-13 19:17:13,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:17:13,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:13,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:13,126 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 19:17:13,150 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 19:17:13,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:17:13,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:17:13,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 19:17:13,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:13,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673362365] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:13,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:13,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:17:13,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354048581] [2021-10-13 19:17:13,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:17:13,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:13,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:17:13,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:17:13,822 INFO L87 Difference]: Start difference. First operand 6098 states and 27695 transitions. Second operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 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 19:17:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:14,098 INFO L93 Difference]: Finished difference Result 12083 states and 50888 transitions. [2021-10-13 19:17:14,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:17:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 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 19:17:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:14,185 INFO L225 Difference]: With dead ends: 12083 [2021-10-13 19:17:14,186 INFO L226 Difference]: Without dead ends: 12063 [2021-10-13 19:17:14,186 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 146.3ms TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:17:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12063 states. [2021-10-13 19:17:14,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12063 to 8188. [2021-10-13 19:17:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8108 states have (on average 4.674025653675383) internal successors, (37897), 8187 states have internal predecessors, (37897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 37897 transitions. [2021-10-13 19:17:14,647 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 37897 transitions. Word has length 12 [2021-10-13 19:17:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:14,647 INFO L470 AbstractCegarLoop]: Abstraction has 8188 states and 37897 transitions. [2021-10-13 19:17:14,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 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 19:17:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 37897 transitions. [2021-10-13 19:17:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:14,649 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:14,649 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:14,694 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 19:17:14,864 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,SelfDestructingSolverStorable39 [2021-10-13 19:17:14,865 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:14,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:14,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2060488106, now seen corresponding path program 1 times [2021-10-13 19:17:14,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:14,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460558407] [2021-10-13 19:17:14,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:14,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:15,144 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 19:17:15,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:15,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460558407] [2021-10-13 19:17:15,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460558407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:15,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084013616] [2021-10-13 19:17:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:15,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:15,149 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 19:17:15,171 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 19:17:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:15,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:17:15,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:15,602 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 19:17:15,655 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:15,656 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 28 treesize of output 27 [2021-10-13 19:17:15,727 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:15,727 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 19:17:15,786 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:15,786 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 19:17:15,818 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:17:15,819 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 23 treesize of output 16 [2021-10-13 19:17:15,830 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 19:17:15,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084013616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:15,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:15,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-10-13 19:17:15,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837676375] [2021-10-13 19:17:15,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:17:15,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:15,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:17:15,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:17:15,832 INFO L87 Difference]: Start difference. First operand 8188 states and 37897 transitions. Second operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:16,272 INFO L93 Difference]: Finished difference Result 13683 states and 61453 transitions. [2021-10-13 19:17:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:17:16,273 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:16,341 INFO L225 Difference]: With dead ends: 13683 [2021-10-13 19:17:16,341 INFO L226 Difference]: Without dead ends: 13675 [2021-10-13 19:17:16,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 285.5ms TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:17:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13675 states. [2021-10-13 19:17:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13675 to 8186. [2021-10-13 19:17:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8186 states, 8106 states have (on average 4.7031828275351595) internal successors, (38124), 8185 states have internal predecessors, (38124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8186 states to 8186 states and 38124 transitions. [2021-10-13 19:17:16,656 INFO L78 Accepts]: Start accepts. Automaton has 8186 states and 38124 transitions. Word has length 12 [2021-10-13 19:17:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:16,657 INFO L470 AbstractCegarLoop]: Abstraction has 8186 states and 38124 transitions. [2021-10-13 19:17:16,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:17:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 8186 states and 38124 transitions. [2021-10-13 19:17:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:16,658 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:16,658 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:16,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-13 19:17:16,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:16,859 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:16,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:16,860 INFO L82 PathProgramCache]: Analyzing trace with hash -2060401047, now seen corresponding path program 1 times [2021-10-13 19:17:16,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:16,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86191919] [2021-10-13 19:17:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:16,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:17,128 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 19:17:17,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:17,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86191919] [2021-10-13 19:17:17,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86191919] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:17,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643192762] [2021-10-13 19:17:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:17,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:17,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:17,131 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 19:17:17,132 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 19:17:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:17,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:17,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:17,684 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 19:17:17,760 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:17,760 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 19:17:17,822 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:17,823 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 19:17:17,926 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:17,927 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 19:17:17,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:17:17,967 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 19:17:17,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643192762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:17,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:17,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:17:17,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481753477] [2021-10-13 19:17:17,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:17:17,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:17,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:17:17,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:17:17,970 INFO L87 Difference]: Start difference. First operand 8186 states and 38124 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 19:17:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:20,273 INFO L93 Difference]: Finished difference Result 20689 states and 88537 transitions. [2021-10-13 19:17:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:17:20,273 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 19:17:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:20,410 INFO L225 Difference]: With dead ends: 20689 [2021-10-13 19:17:20,411 INFO L226 Difference]: Without dead ends: 20689 [2021-10-13 19:17:20,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1546.7ms TimeCoverageRelationStatistics Valid=244, Invalid=1316, Unknown=0, NotChecked=0, Total=1560 [2021-10-13 19:17:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20689 states. [2021-10-13 19:17:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20689 to 8982. [2021-10-13 19:17:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8982 states, 8902 states have (on average 4.754774208043137) internal successors, (42327), 8981 states have internal predecessors, (42327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 42327 transitions. [2021-10-13 19:17:20,846 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 42327 transitions. Word has length 12 [2021-10-13 19:17:20,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:20,846 INFO L470 AbstractCegarLoop]: Abstraction has 8982 states and 42327 transitions. [2021-10-13 19:17:20,847 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 19:17:20,847 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 42327 transitions. [2021-10-13 19:17:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:20,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:20,848 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:20,874 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 19:17:21,048 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,SelfDestructingSolverStorable41 [2021-10-13 19:17:21,048 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:21,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:21,049 INFO L82 PathProgramCache]: Analyzing trace with hash -2060401044, now seen corresponding path program 1 times [2021-10-13 19:17:21,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:21,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286179199] [2021-10-13 19:17:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:21,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:21,310 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 19:17:21,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:21,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286179199] [2021-10-13 19:17:21,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286179199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:21,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093237243] [2021-10-13 19:17:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:21,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:21,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:21,313 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 19:17:21,336 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 19:17:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:21,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:21,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:21,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 146 [2021-10-13 19:17:21,869 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 19:17:21,939 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:21,939 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 25 treesize of output 24 [2021-10-13 19:17:22,008 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:22,009 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 19:17:22,107 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:22,108 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 19:17:22,154 INFO L354 Elim1Store]: treesize reduction 12, result has 20.0 percent of original size [2021-10-13 19:17:22,154 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 22 treesize of output 10 [2021-10-13 19:17:22,177 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 19:17:22,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093237243] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:22,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:22,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-10-13 19:17:22,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199716031] [2021-10-13 19:17:22,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 19:17:22,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 19:17:22,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:17:22,181 INFO L87 Difference]: Start difference. First operand 8982 states and 42327 transitions. Second operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 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 19:17:23,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:23,171 INFO L93 Difference]: Finished difference Result 16695 states and 73545 transitions. [2021-10-13 19:17:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:17:23,172 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 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 19:17:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:23,255 INFO L225 Difference]: With dead ends: 16695 [2021-10-13 19:17:23,255 INFO L226 Difference]: Without dead ends: 16689 [2021-10-13 19:17:23,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 620.6ms TimeCoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:17:23,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16689 states. [2021-10-13 19:17:23,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16689 to 8490. [2021-10-13 19:17:23,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8490 states, 8410 states have (on average 4.697027348394768) internal successors, (39502), 8489 states have internal predecessors, (39502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:23,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8490 states to 8490 states and 39502 transitions. [2021-10-13 19:17:23,592 INFO L78 Accepts]: Start accepts. Automaton has 8490 states and 39502 transitions. Word has length 12 [2021-10-13 19:17:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:23,592 INFO L470 AbstractCegarLoop]: Abstraction has 8490 states and 39502 transitions. [2021-10-13 19:17:23,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 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 19:17:23,593 INFO L276 IsEmpty]: Start isEmpty. Operand 8490 states and 39502 transitions. [2021-10-13 19:17:23,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:23,595 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:23,595 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:23,628 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 19:17:23,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:23,811 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:23,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 882176865, now seen corresponding path program 1 times [2021-10-13 19:17:23,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:23,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999781729] [2021-10-13 19:17:23,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:23,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:24,212 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 19:17:24,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:24,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999781729] [2021-10-13 19:17:24,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999781729] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:24,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027040491] [2021-10-13 19:17:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:24,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:24,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:24,225 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 19:17:24,257 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 19:17:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:24,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:24,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:24,829 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 19:17:24,916 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:24,917 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 19:17:25,024 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:25,025 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 19:17:25,107 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:25,107 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 19:17:25,191 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:25,191 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 19:17:25,228 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:17:25,229 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 25 treesize of output 18 [2021-10-13 19:17:25,245 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 19:17:25,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027040491] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:25,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:25,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-13 19:17:25,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971994992] [2021-10-13 19:17:25,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:17:25,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:25,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:17:25,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:17:25,248 INFO L87 Difference]: Start difference. First operand 8490 states and 39502 transitions. Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 19:17:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:25,636 INFO L93 Difference]: Finished difference Result 12484 states and 57077 transitions. [2021-10-13 19:17:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:17:25,637 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 19:17:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:25,702 INFO L225 Difference]: With dead ends: 12484 [2021-10-13 19:17:25,702 INFO L226 Difference]: Without dead ends: 12484 [2021-10-13 19:17:25,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 380.2ms TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:17:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12484 states. [2021-10-13 19:17:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12484 to 8978. [2021-10-13 19:17:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8978 states, 8898 states have (on average 4.718476062036412) internal successors, (41985), 8977 states have internal predecessors, (41985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8978 states to 8978 states and 41985 transitions. [2021-10-13 19:17:26,077 INFO L78 Accepts]: Start accepts. Automaton has 8978 states and 41985 transitions. Word has length 12 [2021-10-13 19:17:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:26,078 INFO L470 AbstractCegarLoop]: Abstraction has 8978 states and 41985 transitions. [2021-10-13 19:17:26,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 19:17:26,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8978 states and 41985 transitions. [2021-10-13 19:17:26,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:26,080 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:26,081 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:26,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-13 19:17:26,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:26,294 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:26,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:26,295 INFO L82 PathProgramCache]: Analyzing trace with hash 882176868, now seen corresponding path program 1 times [2021-10-13 19:17:26,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:26,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668439746] [2021-10-13 19:17:26,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:26,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:26,646 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 19:17:26,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:26,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668439746] [2021-10-13 19:17:26,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668439746] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:26,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845398283] [2021-10-13 19:17:26,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:26,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:26,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:26,648 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 19:17:26,666 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 19:17:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:27,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:17:27,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:27,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:27,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:27,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 144 [2021-10-13 19:17:27,231 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 19:17:27,350 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:27,351 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 19:17:27,464 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:27,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:17:27,552 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:27,552 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 23 treesize of output 22 [2021-10-13 19:17:27,690 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:27,690 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 19:17:27,764 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:17:27,765 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 27 treesize of output 20 [2021-10-13 19:17:27,770 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 19:17:27,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845398283] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:27,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:27,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-13 19:17:27,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471318686] [2021-10-13 19:17:27,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:17:27,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:17:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:17:27,772 INFO L87 Difference]: Start difference. First operand 8978 states and 41985 transitions. Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 19:17:28,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:28,388 INFO L93 Difference]: Finished difference Result 10558 states and 47974 transitions. [2021-10-13 19:17:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:17:28,389 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 19:17:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:28,457 INFO L225 Difference]: With dead ends: 10558 [2021-10-13 19:17:28,457 INFO L226 Difference]: Without dead ends: 10548 [2021-10-13 19:17:28,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 367.3ms TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:17:28,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2021-10-13 19:17:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 8454. [2021-10-13 19:17:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8454 states, 8374 states have (on average 4.687604490088368) internal successors, (39254), 8453 states have internal predecessors, (39254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8454 states to 8454 states and 39254 transitions. [2021-10-13 19:17:28,826 INFO L78 Accepts]: Start accepts. Automaton has 8454 states and 39254 transitions. Word has length 12 [2021-10-13 19:17:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:28,827 INFO L470 AbstractCegarLoop]: Abstraction has 8454 states and 39254 transitions. [2021-10-13 19:17:28,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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 19:17:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8454 states and 39254 transitions. [2021-10-13 19:17:28,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:28,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:28,844 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:28,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-10-13 19:17:29,063 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,SelfDestructingSolverStorable44 [2021-10-13 19:17:29,063 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:29,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:29,064 INFO L82 PathProgramCache]: Analyzing trace with hash 882176507, now seen corresponding path program 1 times [2021-10-13 19:17:29,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:29,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614590957] [2021-10-13 19:17:29,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:29,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:29,447 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 19:17:29,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:29,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614590957] [2021-10-13 19:17:29,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614590957] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:29,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684043703] [2021-10-13 19:17:29,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:29,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:29,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:29,449 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 19:17:29,450 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 19:17:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:29,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:17:29,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:29,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:29,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 144 [2021-10-13 19:17:30,074 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 19:17:30,332 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:30,332 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 19:17:30,423 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:30,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:17:30,494 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:30,495 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 19:17:30,565 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:30,565 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 19:17:30,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:17:30,607 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 19:17:30,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684043703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:30,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:30,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:17:30,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693040518] [2021-10-13 19:17:30,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:17:30,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:30,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:17:30,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:17:30,609 INFO L87 Difference]: Start difference. First operand 8454 states and 39254 transitions. Second operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:31,406 INFO L93 Difference]: Finished difference Result 12890 states and 56688 transitions. [2021-10-13 19:17:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:17:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:31,469 INFO L225 Difference]: With dead ends: 12890 [2021-10-13 19:17:31,469 INFO L226 Difference]: Without dead ends: 12890 [2021-10-13 19:17:31,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 712.9ms TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:17:31,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12890 states. [2021-10-13 19:17:31,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12890 to 8764. [2021-10-13 19:17:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8764 states, 8684 states have (on average 4.669622293873791) internal successors, (40551), 8763 states have internal predecessors, (40551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8764 states to 8764 states and 40551 transitions. [2021-10-13 19:17:31,775 INFO L78 Accepts]: Start accepts. Automaton has 8764 states and 40551 transitions. Word has length 12 [2021-10-13 19:17:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:31,775 INFO L470 AbstractCegarLoop]: Abstraction has 8764 states and 40551 transitions. [2021-10-13 19:17:31,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 8764 states and 40551 transitions. [2021-10-13 19:17:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:31,777 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:31,777 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:31,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-13 19:17:31,982 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,SelfDestructingSolverStorable45 [2021-10-13 19:17:31,983 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:31,983 INFO L82 PathProgramCache]: Analyzing trace with hash 882176510, now seen corresponding path program 1 times [2021-10-13 19:17:31,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:31,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821422733] [2021-10-13 19:17:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:31,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:32,306 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 19:17:32,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:32,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821422733] [2021-10-13 19:17:32,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821422733] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:32,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622639038] [2021-10-13 19:17:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:32,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:32,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:32,308 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 19:17:32,309 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 19:17:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:32,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 19:17:32,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:32,902 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 19:17:32,983 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:32,983 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 19:17:33,109 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:33,110 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 26 treesize of output 25 [2021-10-13 19:17:33,189 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:33,189 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 19:17:33,260 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:33,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:17:33,306 INFO L354 Elim1Store]: treesize reduction 12, result has 20.0 percent of original size [2021-10-13 19:17:33,306 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 22 treesize of output 10 [2021-10-13 19:17:33,312 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 19:17:33,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622639038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:33,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:33,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:17:33,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808962692] [2021-10-13 19:17:33,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:17:33,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:17:33,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:17:33,314 INFO L87 Difference]: Start difference. First operand 8764 states and 40551 transitions. Second operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:33,929 INFO L93 Difference]: Finished difference Result 9924 states and 44774 transitions. [2021-10-13 19:17:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:17:33,929 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:33,971 INFO L225 Difference]: With dead ends: 9924 [2021-10-13 19:17:33,971 INFO L226 Difference]: Without dead ends: 9916 [2021-10-13 19:17:33,972 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 575.0ms TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:17:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9916 states. [2021-10-13 19:17:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9916 to 8518. [2021-10-13 19:17:34,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8518 states, 8438 states have (on average 4.673500829580469) internal successors, (39435), 8517 states have internal predecessors, (39435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8518 states to 8518 states and 39435 transitions. [2021-10-13 19:17:34,445 INFO L78 Accepts]: Start accepts. Automaton has 8518 states and 39435 transitions. Word has length 12 [2021-10-13 19:17:34,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:34,445 INFO L470 AbstractCegarLoop]: Abstraction has 8518 states and 39435 transitions. [2021-10-13 19:17:34,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:34,445 INFO L276 IsEmpty]: Start isEmpty. Operand 8518 states and 39435 transitions. [2021-10-13 19:17:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:34,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:34,447 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:34,473 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 19:17:34,647 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,SelfDestructingSolverStorable46 [2021-10-13 19:17:34,648 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:34,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:34,649 INFO L82 PathProgramCache]: Analyzing trace with hash 882178680, now seen corresponding path program 1 times [2021-10-13 19:17:34,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:34,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160285771] [2021-10-13 19:17:34,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:34,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:34,878 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 19:17:34,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:34,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160285771] [2021-10-13 19:17:34,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160285771] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:34,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963909249] [2021-10-13 19:17:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:34,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:34,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:34,880 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 19:17:34,902 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 19:17:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:35,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 19:17:35,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:35,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:35,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:35,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:35,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-10-13 19:17:35,552 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 19:17:35,645 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:35,645 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 19:17:35,731 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:35,732 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 19:17:35,801 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:35,802 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 19:17:35,874 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:35,875 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 26 treesize of output 25 [2021-10-13 19:17:35,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 19:17:35,922 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 19:17:35,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963909249] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:35,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:35,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:17:35,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672264583] [2021-10-13 19:17:35,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:17:35,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:17:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:17:35,923 INFO L87 Difference]: Start difference. First operand 8518 states and 39435 transitions. Second operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:36,454 INFO L93 Difference]: Finished difference Result 14834 states and 68811 transitions. [2021-10-13 19:17:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:17:36,455 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:36,521 INFO L225 Difference]: With dead ends: 14834 [2021-10-13 19:17:36,521 INFO L226 Difference]: Without dead ends: 14834 [2021-10-13 19:17:36,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 426.1ms TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:17:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14834 states. [2021-10-13 19:17:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14834 to 10324. [2021-10-13 19:17:37,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10324 states, 10244 states have (on average 4.851132370167903) internal successors, (49695), 10323 states have internal predecessors, (49695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10324 states to 10324 states and 49695 transitions. [2021-10-13 19:17:37,054 INFO L78 Accepts]: Start accepts. Automaton has 10324 states and 49695 transitions. Word has length 12 [2021-10-13 19:17:37,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:37,055 INFO L470 AbstractCegarLoop]: Abstraction has 10324 states and 49695 transitions. [2021-10-13 19:17:37,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:37,055 INFO L276 IsEmpty]: Start isEmpty. Operand 10324 states and 49695 transitions. [2021-10-13 19:17:37,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:17:37,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:37,056 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:37,082 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 19:17:37,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:37,257 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:37,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:37,259 INFO L82 PathProgramCache]: Analyzing trace with hash 882178683, now seen corresponding path program 1 times [2021-10-13 19:17:37,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:37,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811731500] [2021-10-13 19:17:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:37,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:37,484 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 19:17:37,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:37,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811731500] [2021-10-13 19:17:37,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811731500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:37,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415306011] [2021-10-13 19:17:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:37,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:37,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:37,488 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 19:17:37,494 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 19:17:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:38,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 19:17:38,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:38,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:38,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2021-10-13 19:17:38,187 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 19:17:38,283 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:38,284 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 19:17:38,373 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:38,373 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 19:17:38,442 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:38,442 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 19:17:38,508 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:38,509 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 19:17:38,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 19:17:38,569 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 19:17:38,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415306011] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:38,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:38,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 19:17:38,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158375237] [2021-10-13 19:17:38,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:17:38,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:38,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:17:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:17:38,572 INFO L87 Difference]: Start difference. First operand 10324 states and 49695 transitions. Second operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:39,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:39,353 INFO L93 Difference]: Finished difference Result 14834 states and 67435 transitions. [2021-10-13 19:17:39,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:17:39,354 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:39,441 INFO L225 Difference]: With dead ends: 14834 [2021-10-13 19:17:39,441 INFO L226 Difference]: Without dead ends: 14834 [2021-10-13 19:17:39,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 462.3ms TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:17:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14834 states. [2021-10-13 19:17:39,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14834 to 9076. [2021-10-13 19:17:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 8996 states have (on average 4.731547354379725) internal successors, (42565), 9075 states have internal predecessors, (42565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 42565 transitions. [2021-10-13 19:17:39,776 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 42565 transitions. Word has length 12 [2021-10-13 19:17:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:39,776 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 42565 transitions. [2021-10-13 19:17:39,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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 19:17:39,777 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 42565 transitions. [2021-10-13 19:17:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:39,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:39,778 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1] [2021-10-13 19:17:39,821 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 19:17:39,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-13 19:17:39,992 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:39,993 INFO L82 PathProgramCache]: Analyzing trace with hash -407294736, now seen corresponding path program 3 times [2021-10-13 19:17:39,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:39,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383152690] [2021-10-13 19:17:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:39,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:40,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:40,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383152690] [2021-10-13 19:17:40,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383152690] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:40,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048182456] [2021-10-13 19:17:40,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:17:40,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:40,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:40,174 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 19:17:40,175 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 19:17:40,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:17:40,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:17:40,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:17:40,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:41,079 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 19:17:41,167 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:17:41,168 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 19:17:41,429 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:17:41,430 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 36 treesize of output 23 [2021-10-13 19:17:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:41,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048182456] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:41,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:41,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:17:41,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013695644] [2021-10-13 19:17:41,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:17:41,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:41,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:17:41,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:17:41,434 INFO L87 Difference]: Start difference. First operand 9076 states and 42565 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 19:17:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:43,608 INFO L93 Difference]: Finished difference Result 14619 states and 64272 transitions. [2021-10-13 19:17:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:17:43,609 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 19:17:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:43,715 INFO L225 Difference]: With dead ends: 14619 [2021-10-13 19:17:43,715 INFO L226 Difference]: Without dead ends: 14619 [2021-10-13 19:17:43,717 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1508.0ms TimeCoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:17:43,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14619 states. [2021-10-13 19:17:44,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14619 to 9132. [2021-10-13 19:17:44,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9132 states, 9052 states have (on average 4.729673000441891) internal successors, (42813), 9131 states have internal predecessors, (42813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9132 states to 9132 states and 42813 transitions. [2021-10-13 19:17:44,261 INFO L78 Accepts]: Start accepts. Automaton has 9132 states and 42813 transitions. Word has length 13 [2021-10-13 19:17:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:44,261 INFO L470 AbstractCegarLoop]: Abstraction has 9132 states and 42813 transitions. [2021-10-13 19:17:44,261 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 19:17:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9132 states and 42813 transitions. [2021-10-13 19:17:44,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:44,263 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:44,263 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1] [2021-10-13 19:17:44,292 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 19:17:44,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:44,471 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:44,471 INFO L82 PathProgramCache]: Analyzing trace with hash -407294733, now seen corresponding path program 3 times [2021-10-13 19:17:44,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:44,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667198698] [2021-10-13 19:17:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:44,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:44,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:44,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667198698] [2021-10-13 19:17:44,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667198698] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:44,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877357166] [2021-10-13 19:17:44,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:17:44,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:44,674 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 19:17:44,691 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 19:17:45,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 19:17:45,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:17:45,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:17:45,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:45,399 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 19:17:45,515 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:17:45,515 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 33 [2021-10-13 19:17:45,721 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:17:45,722 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 34 treesize of output 21 [2021-10-13 19:17:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:45,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877357166] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:45,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:45,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:17:45,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803374584] [2021-10-13 19:17:45,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:17:45,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:45,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:17:45,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:17:45,727 INFO L87 Difference]: Start difference. First operand 9132 states and 42813 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 19:17:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:47,809 INFO L93 Difference]: Finished difference Result 14618 states and 63868 transitions. [2021-10-13 19:17:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:17:47,809 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 19:17:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:47,876 INFO L225 Difference]: With dead ends: 14618 [2021-10-13 19:17:47,876 INFO L226 Difference]: Without dead ends: 14618 [2021-10-13 19:17:47,877 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1455.9ms TimeCoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 19:17:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14618 states. [2021-10-13 19:17:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14618 to 9085. [2021-10-13 19:17:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9085 states, 9005 states have (on average 4.729150471960022) internal successors, (42586), 9084 states have internal predecessors, (42586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:48,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9085 states to 9085 states and 42586 transitions. [2021-10-13 19:17:48,304 INFO L78 Accepts]: Start accepts. Automaton has 9085 states and 42586 transitions. Word has length 13 [2021-10-13 19:17:48,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:48,305 INFO L470 AbstractCegarLoop]: Abstraction has 9085 states and 42586 transitions. [2021-10-13 19:17:48,305 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 19:17:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9085 states and 42586 transitions. [2021-10-13 19:17:48,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:48,307 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:48,307 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:48,348 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 19:17:48,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:48,521 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1423889284, now seen corresponding path program 1 times [2021-10-13 19:17:48,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:48,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946158205] [2021-10-13 19:17:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:48,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:49,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:49,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946158205] [2021-10-13 19:17:49,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946158205] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:49,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741143130] [2021-10-13 19:17:49,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:49,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:49,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:49,266 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 19:17:49,275 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 19:17:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:49,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:17:49,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:49,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:49,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:17:49,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 194 [2021-10-13 19:17:50,105 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 19:17:50,176 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:50,177 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 19:17:50,280 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:50,281 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 19:17:50,344 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:50,345 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 19:17:50,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:17:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:50,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741143130] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:50,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:50,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:17:50,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541280119] [2021-10-13 19:17:50,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:17:50,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:50,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:17:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:17:50,379 INFO L87 Difference]: Start difference. First operand 9085 states and 42586 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 19:17:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:52,349 INFO L93 Difference]: Finished difference Result 21827 states and 94310 transitions. [2021-10-13 19:17:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:17:52,350 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 19:17:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:52,459 INFO L225 Difference]: With dead ends: 21827 [2021-10-13 19:17:52,459 INFO L226 Difference]: Without dead ends: 21823 [2021-10-13 19:17:52,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1408.6ms TimeCoverageRelationStatistics Valid=233, Invalid=1249, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:17:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21823 states. [2021-10-13 19:17:52,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21823 to 9434. [2021-10-13 19:17:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9434 states, 9354 states have (on average 4.761920034209964) internal successors, (44543), 9433 states have internal predecessors, (44543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 44543 transitions. [2021-10-13 19:17:53,029 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 44543 transitions. Word has length 13 [2021-10-13 19:17:53,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:53,029 INFO L470 AbstractCegarLoop]: Abstraction has 9434 states and 44543 transitions. [2021-10-13 19:17:53,029 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 19:17:53,029 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 44543 transitions. [2021-10-13 19:17:53,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:53,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:53,031 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:53,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-13 19:17:53,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:53,247 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:53,248 INFO L82 PathProgramCache]: Analyzing trace with hash 618214314, now seen corresponding path program 1 times [2021-10-13 19:17:53,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:53,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654300648] [2021-10-13 19:17:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:53,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:53,518 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 19:17:53,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:53,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654300648] [2021-10-13 19:17:53,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654300648] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:53,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861709075] [2021-10-13 19:17:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:53,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:53,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:53,521 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 19:17:53,522 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 19:17:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:54,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:54,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:54,212 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 19:17:54,276 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:17:54,276 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 28 treesize of output 27 [2021-10-13 19:17:54,353 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:54,353 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 19:17:54,426 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:54,427 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 19:17:54,478 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:54,479 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 24 treesize of output 23 [2021-10-13 19:17:54,505 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:17:54,505 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 23 treesize of output 16 [2021-10-13 19:17:54,512 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 19:17:54,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861709075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:54,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:54,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-13 19:17:54,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503146271] [2021-10-13 19:17:54,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 19:17:54,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:54,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 19:17:54,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:17:54,514 INFO L87 Difference]: Start difference. First operand 9434 states and 44543 transitions. Second operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 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 19:17:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:55,143 INFO L93 Difference]: Finished difference Result 15798 states and 72429 transitions. [2021-10-13 19:17:55,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:17:55,143 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 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 13 [2021-10-13 19:17:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:55,213 INFO L225 Difference]: With dead ends: 15798 [2021-10-13 19:17:55,213 INFO L226 Difference]: Without dead ends: 15790 [2021-10-13 19:17:55,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 360.6ms TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:17:55,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15790 states. [2021-10-13 19:17:55,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15790 to 9196. [2021-10-13 19:17:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9196 states, 9116 states have (on average 4.767770952172005) internal successors, (43463), 9195 states have internal predecessors, (43463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9196 states to 9196 states and 43463 transitions. [2021-10-13 19:17:55,520 INFO L78 Accepts]: Start accepts. Automaton has 9196 states and 43463 transitions. Word has length 13 [2021-10-13 19:17:55,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:55,521 INFO L470 AbstractCegarLoop]: Abstraction has 9196 states and 43463 transitions. [2021-10-13 19:17:55,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 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 19:17:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 9196 states and 43463 transitions. [2021-10-13 19:17:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:55,522 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:55,522 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:55,548 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 19:17:55,723 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,SelfDestructingSolverStorable52 [2021-10-13 19:17:55,723 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1577929542, now seen corresponding path program 1 times [2021-10-13 19:17:55,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:55,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241365881] [2021-10-13 19:17:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:55,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:55,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:55,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241365881] [2021-10-13 19:17:55,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241365881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:55,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690047748] [2021-10-13 19:17:55,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:55,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:55,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:55,781 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 19:17:55,803 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 19:17:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:56,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 19:17:56,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:56,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690047748] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:56,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:56,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 19:17:56,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198197401] [2021-10-13 19:17:56,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:17:56,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:56,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:17:56,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:17:56,627 INFO L87 Difference]: Start difference. First operand 9196 states and 43463 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 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 19:17:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:56,804 INFO L93 Difference]: Finished difference Result 9274 states and 42958 transitions. [2021-10-13 19:17:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:17:56,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 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 19:17:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:56,863 INFO L225 Difference]: With dead ends: 9274 [2021-10-13 19:17:56,863 INFO L226 Difference]: Without dead ends: 9014 [2021-10-13 19:17:56,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:17:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9014 states. [2021-10-13 19:17:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9014 to 8962. [2021-10-13 19:17:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8962 states, 8882 states have (on average 4.719657734744427) internal successors, (41920), 8961 states have internal predecessors, (41920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8962 states to 8962 states and 41920 transitions. [2021-10-13 19:17:57,108 INFO L78 Accepts]: Start accepts. Automaton has 8962 states and 41920 transitions. Word has length 13 [2021-10-13 19:17:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:57,108 INFO L470 AbstractCegarLoop]: Abstraction has 8962 states and 41920 transitions. [2021-10-13 19:17:57,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 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 19:17:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 8962 states and 41920 transitions. [2021-10-13 19:17:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:57,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:57,110 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:57,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-10-13 19:17:57,310 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,SelfDestructingSolverStorable53 [2021-10-13 19:17:57,311 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:57,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:57,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1577565247, now seen corresponding path program 1 times [2021-10-13 19:17:57,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:57,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41180890] [2021-10-13 19:17:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:57,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:57,552 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 19:17:57,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:57,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41180890] [2021-10-13 19:17:57,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41180890] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:57,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253546149] [2021-10-13 19:17:57,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:57,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:57,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:17:57,555 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 19:17:57,556 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 19:17:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:58,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 19:17:58,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:17:58,403 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 19:17:58,472 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:58,473 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 19:17:58,552 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:58,552 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 19:17:58,624 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:58,624 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 19:17:58,684 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:17:58,684 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 19:17:58,729 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:17:58,729 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 25 treesize of output 18 [2021-10-13 19:17:58,732 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 19:17:58,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253546149] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:17:58,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:17:58,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-13 19:17:58,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927407449] [2021-10-13 19:17:58,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 19:17:58,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 19:17:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:17:58,734 INFO L87 Difference]: Start difference. First operand 8962 states and 41920 transitions. Second operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 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 19:17:59,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:59,087 INFO L93 Difference]: Finished difference Result 13379 states and 63395 transitions. [2021-10-13 19:17:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:17:59,088 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 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 19:17:59,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:59,153 INFO L225 Difference]: With dead ends: 13379 [2021-10-13 19:17:59,153 INFO L226 Difference]: Without dead ends: 13379 [2021-10-13 19:17:59,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 351.2ms TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:17:59,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13379 states. [2021-10-13 19:17:59,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13379 to 10465. [2021-10-13 19:17:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10465 states, 10385 states have (on average 4.808955223880597) internal successors, (49941), 10464 states have internal predecessors, (49941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:59,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10465 states to 10465 states and 49941 transitions. [2021-10-13 19:17:59,464 INFO L78 Accepts]: Start accepts. Automaton has 10465 states and 49941 transitions. Word has length 13 [2021-10-13 19:17:59,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:59,464 INFO L470 AbstractCegarLoop]: Abstraction has 10465 states and 49941 transitions. [2021-10-13 19:17:59,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 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 19:17:59,465 INFO L276 IsEmpty]: Start isEmpty. Operand 10465 states and 49941 transitions. [2021-10-13 19:17:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:17:59,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:59,466 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:59,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-13 19:17:59,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:17:59,681 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread4Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:17:59,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:59,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1577565250, now seen corresponding path program 1 times [2021-10-13 19:17:59,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:59,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193129863] [2021-10-13 19:17:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:59,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:00,016 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 19:18:00,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:00,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193129863] [2021-10-13 19:18:00,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193129863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:00,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818191302] [2021-10-13 19:18:00,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:00,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:00,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:00,021 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 19:18:00,039 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 19:18:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:00,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 19:18:00,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:00,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-10-13 19:18:00,843 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 19:18:00,920 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:18:00,920 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 19:18:00,998 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:18:00,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:18:01,061 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:18:01,061 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 19:18:01,114 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 19:18:01,114 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 19:18:01,147 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-13 19:18:01,147 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 23 treesize of output 16 [2021-10-13 19:18:01,150 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 19:18:01,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818191302] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:01,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:01,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-13 19:18:01,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814522686] [2021-10-13 19:18:01,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 19:18:01,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 19:18:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:18:01,152 INFO L87 Difference]: Start difference. First operand 10465 states and 49941 transitions. Second operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:18:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:01,482 INFO L93 Difference]: Finished difference Result 13339 states and 62065 transitions. [2021-10-13 19:18:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:18:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:18:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:01,567 INFO L225 Difference]: With dead ends: 13339 [2021-10-13 19:18:01,567 INFO L226 Difference]: Without dead ends: 13130 [2021-10-13 19:18:01,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 303.0ms TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:18:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13130 states. [2021-10-13 19:18:02,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13130 to 10216. [2021-10-13 19:18:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10216 states, 10136 states have (on average 4.73569455406472) internal successors, (48001), 10215 states have internal predecessors, (48001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10216 states to 10216 states and 48001 transitions. [2021-10-13 19:18:02,100 INFO L78 Accepts]: Start accepts. Automaton has 10216 states and 48001 transitions. Word has length 13 [2021-10-13 19:18:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:02,100 INFO L470 AbstractCegarLoop]: Abstraction has 10216 states and 48001 transitions. [2021-10-13 19:18:02,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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 19:18:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 10216 states and 48001 transitions. [2021-10-13 19:18:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:02,101 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:02,101 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:02,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-10-13 19:18:02,302 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,SelfDestructingSolverStorable55 [2021-10-13 19:18:02,302 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:02,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:02,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1131590124, now seen corresponding path program 1 times [2021-10-13 19:18:02,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:02,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753888553] [2021-10-13 19:18:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:02,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:02,514 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 19:18:02,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:02,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753888553] [2021-10-13 19:18:02,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753888553] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:02,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508631561] [2021-10-13 19:18:02,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:02,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:02,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:02,517 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 19:18:02,518 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 19:18:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:03,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:03,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:03,315 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 19:18:03,385 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:03,386 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 19:18:03,485 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:03,485 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 19:18:03,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:18:03,569 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 19:18:03,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508631561] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:03,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:03,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:03,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443080185] [2021-10-13 19:18:03,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:03,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:03,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:03,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:03,571 INFO L87 Difference]: Start difference. First operand 10216 states and 48001 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 19:18:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:04,798 INFO L93 Difference]: Finished difference Result 15667 states and 70168 transitions. [2021-10-13 19:18:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:18:04,799 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 19:18:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:04,871 INFO L225 Difference]: With dead ends: 15667 [2021-10-13 19:18:04,871 INFO L226 Difference]: Without dead ends: 15667 [2021-10-13 19:18:04,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 894.9ms TimeCoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:18:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15667 states. [2021-10-13 19:18:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15667 to 10368. [2021-10-13 19:18:05,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10368 states, 10288 states have (on average 4.741154743390358) internal successors, (48777), 10367 states have internal predecessors, (48777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:05,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10368 states to 10368 states and 48777 transitions. [2021-10-13 19:18:05,481 INFO L78 Accepts]: Start accepts. Automaton has 10368 states and 48777 transitions. Word has length 14 [2021-10-13 19:18:05,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:05,481 INFO L470 AbstractCegarLoop]: Abstraction has 10368 states and 48777 transitions. [2021-10-13 19:18:05,481 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 19:18:05,482 INFO L276 IsEmpty]: Start isEmpty. Operand 10368 states and 48777 transitions. [2021-10-13 19:18:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:05,483 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:05,483 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:05,515 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 19:18:05,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:05,694 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:05,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:05,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1131590121, now seen corresponding path program 1 times [2021-10-13 19:18:05,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:05,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140728278] [2021-10-13 19:18:05,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:05,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:05,912 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 19:18:05,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:05,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140728278] [2021-10-13 19:18:05,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140728278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:05,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607090390] [2021-10-13 19:18:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:05,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:05,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:05,918 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 19:18:05,939 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 19:18:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:06,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:06,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:06,855 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 19:18:06,936 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:06,937 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 19:18:07,037 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:07,038 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 19:18:07,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:18:07,129 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 19:18:07,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607090390] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:07,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:07,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:07,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421440217] [2021-10-13 19:18:07,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:07,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:07,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:07,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:07,131 INFO L87 Difference]: Start difference. First operand 10368 states and 48777 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 19:18:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:08,510 INFO L93 Difference]: Finished difference Result 15667 states and 69603 transitions. [2021-10-13 19:18:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:18:08,511 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 19:18:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:08,607 INFO L225 Difference]: With dead ends: 15667 [2021-10-13 19:18:08,607 INFO L226 Difference]: Without dead ends: 15667 [2021-10-13 19:18:08,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 896.1ms TimeCoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:18:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15667 states. [2021-10-13 19:18:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15667 to 10224. [2021-10-13 19:18:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10224 states, 10144 states have (on average 4.7345228706624605) internal successors, (48027), 10223 states have internal predecessors, (48027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10224 states to 10224 states and 48027 transitions. [2021-10-13 19:18:09,203 INFO L78 Accepts]: Start accepts. Automaton has 10224 states and 48027 transitions. Word has length 14 [2021-10-13 19:18:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:09,203 INFO L470 AbstractCegarLoop]: Abstraction has 10224 states and 48027 transitions. [2021-10-13 19:18:09,204 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 19:18:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 10224 states and 48027 transitions. [2021-10-13 19:18:09,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:09,205 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:09,205 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:09,245 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 19:18:09,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-13 19:18:09,418 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:09,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1131573429, now seen corresponding path program 1 times [2021-10-13 19:18:09,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:09,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781519325] [2021-10-13 19:18:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:09,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:09,640 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 19:18:09,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:09,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781519325] [2021-10-13 19:18:09,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781519325] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:09,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602763157] [2021-10-13 19:18:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:09,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:09,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:09,645 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 19:18:09,655 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 19:18:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:10,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:18:10,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:10,365 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-13 19:18:10,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 384 treesize of output 350 [2021-10-13 19:18:10,575 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 19:18:10,643 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:10,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 19:18:10,732 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:10,732 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 19:18:10,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:18:10,822 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 19:18:10,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602763157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:10,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:10,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:10,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637946570] [2021-10-13 19:18:10,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:10,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:10,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:10,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:10,825 INFO L87 Difference]: Start difference. First operand 10224 states and 48027 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 19:18:11,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:11,748 INFO L93 Difference]: Finished difference Result 14846 states and 67019 transitions. [2021-10-13 19:18:11,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:18:11,748 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 19:18:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:11,822 INFO L225 Difference]: With dead ends: 14846 [2021-10-13 19:18:11,822 INFO L226 Difference]: Without dead ends: 14846 [2021-10-13 19:18:11,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 658.0ms TimeCoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:18:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14846 states. [2021-10-13 19:18:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14846 to 10371. [2021-10-13 19:18:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10371 states, 10291 states have (on average 4.740355650568458) internal successors, (48783), 10370 states have internal predecessors, (48783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10371 states to 10371 states and 48783 transitions. [2021-10-13 19:18:12,409 INFO L78 Accepts]: Start accepts. Automaton has 10371 states and 48783 transitions. Word has length 14 [2021-10-13 19:18:12,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:12,410 INFO L470 AbstractCegarLoop]: Abstraction has 10371 states and 48783 transitions. [2021-10-13 19:18:12,410 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 19:18:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 10371 states and 48783 transitions. [2021-10-13 19:18:12,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:12,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:12,411 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:12,458 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 19:18:12,611 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,SelfDestructingSolverStorable58 [2021-10-13 19:18:12,612 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:12,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:12,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1131573426, now seen corresponding path program 1 times [2021-10-13 19:18:12,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:12,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451280623] [2021-10-13 19:18:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:12,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:12,930 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 19:18:12,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:12,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451280623] [2021-10-13 19:18:12,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451280623] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:12,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247136528] [2021-10-13 19:18:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:12,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:12,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:12,932 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 19:18:12,951 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 19:18:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:13,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:13,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:13,741 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 19:18:13,818 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:13,819 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 19:18:13,919 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:13,920 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 19:18:13,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:18:13,995 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 19:18:13,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247136528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:13,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:13,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:13,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992416596] [2021-10-13 19:18:13,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:13,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:13,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:13,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:13,997 INFO L87 Difference]: Start difference. First operand 10371 states and 48783 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 19:18:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:17,438 INFO L93 Difference]: Finished difference Result 36071 states and 160313 transitions. [2021-10-13 19:18:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 19:18:17,438 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 19:18:17,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:17,918 INFO L225 Difference]: With dead ends: 36071 [2021-10-13 19:18:17,918 INFO L226 Difference]: Without dead ends: 36071 [2021-10-13 19:18:17,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2171.7ms TimeCoverageRelationStatistics Valid=330, Invalid=2120, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 19:18:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36071 states. [2021-10-13 19:18:18,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36071 to 17547. [2021-10-13 19:18:18,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17547 states, 17467 states have (on average 5.028224652201294) internal successors, (87828), 17546 states have internal predecessors, (87828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17547 states to 17547 states and 87828 transitions. [2021-10-13 19:18:19,040 INFO L78 Accepts]: Start accepts. Automaton has 17547 states and 87828 transitions. Word has length 14 [2021-10-13 19:18:19,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:19,041 INFO L470 AbstractCegarLoop]: Abstraction has 17547 states and 87828 transitions. [2021-10-13 19:18:19,041 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 19:18:19,041 INFO L276 IsEmpty]: Start isEmpty. Operand 17547 states and 87828 transitions. [2021-10-13 19:18:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:19,042 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:19,042 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:19,071 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 19:18:19,243 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,SelfDestructingSolverStorable59 [2021-10-13 19:18:19,243 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:19,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:19,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1136852560, now seen corresponding path program 1 times [2021-10-13 19:18:19,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:19,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989118903] [2021-10-13 19:18:19,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:19,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:19,520 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 19:18:19,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:19,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989118903] [2021-10-13 19:18:19,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989118903] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:19,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229245524] [2021-10-13 19:18:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:19,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:19,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:19,523 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 19:18:19,537 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 19:18:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:20,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:20,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:20,377 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 19:18:20,431 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:20,432 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 19:18:20,513 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:20,514 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 19:18:20,645 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:20,646 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 19:18:20,728 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:20,729 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 19:18:20,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:18:20,770 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 19:18:20,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229245524] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:20,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:20,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:20,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776910793] [2021-10-13 19:18:20,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:20,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:20,772 INFO L87 Difference]: Start difference. First operand 17547 states and 87828 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 19:18:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:22,113 INFO L93 Difference]: Finished difference Result 24658 states and 121029 transitions. [2021-10-13 19:18:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:18:22,113 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 19:18:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:22,251 INFO L225 Difference]: With dead ends: 24658 [2021-10-13 19:18:22,252 INFO L226 Difference]: Without dead ends: 24658 [2021-10-13 19:18:22,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 879.5ms TimeCoverageRelationStatistics Valid=116, Invalid=696, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:18:22,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24658 states. [2021-10-13 19:18:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24658 to 16394. [2021-10-13 19:18:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16394 states, 16314 states have (on average 4.952739977933064) internal successors, (80799), 16393 states have internal predecessors, (80799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16394 states to 16394 states and 80799 transitions. [2021-10-13 19:18:23,117 INFO L78 Accepts]: Start accepts. Automaton has 16394 states and 80799 transitions. Word has length 14 [2021-10-13 19:18:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:23,117 INFO L470 AbstractCegarLoop]: Abstraction has 16394 states and 80799 transitions. [2021-10-13 19:18:23,117 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 19:18:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 16394 states and 80799 transitions. [2021-10-13 19:18:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:23,119 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:23,119 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:23,147 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 19:18:23,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,50 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:23,329 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:23,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:23,329 INFO L82 PathProgramCache]: Analyzing trace with hash 266258305, now seen corresponding path program 1 times [2021-10-13 19:18:23,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:23,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436011995] [2021-10-13 19:18:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:23,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:23,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:23,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436011995] [2021-10-13 19:18:23,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436011995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:23,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338045336] [2021-10-13 19:18:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:23,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:23,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:23,705 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 19:18:23,725 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 19:18:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:24,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:18:24,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:24,630 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 19:18:24,725 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:24,725 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 19:18:24,954 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:24,955 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 36 treesize of output 35 [2021-10-13 19:18:25,046 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:18:25,046 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 36 treesize of output 23 [2021-10-13 19:18:25,049 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:25,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338045336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:25,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:25,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:25,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255199969] [2021-10-13 19:18:25,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:25,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:25,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:25,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:25,051 INFO L87 Difference]: Start difference. First operand 16394 states and 80799 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 19:18:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:28,337 INFO L93 Difference]: Finished difference Result 25926 states and 122131 transitions. [2021-10-13 19:18:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 19:18:28,337 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 19:18:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:28,480 INFO L225 Difference]: With dead ends: 25926 [2021-10-13 19:18:28,480 INFO L226 Difference]: Without dead ends: 25926 [2021-10-13 19:18:28,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2211.0ms TimeCoverageRelationStatistics Valid=257, Invalid=1813, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:18:28,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25926 states. [2021-10-13 19:18:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25926 to 15902. [2021-10-13 19:18:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15902 states, 15822 states have (on average 4.937302490203514) internal successors, (78118), 15901 states have internal predecessors, (78118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15902 states to 15902 states and 78118 transitions. [2021-10-13 19:18:29,415 INFO L78 Accepts]: Start accepts. Automaton has 15902 states and 78118 transitions. Word has length 14 [2021-10-13 19:18:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:29,415 INFO L470 AbstractCegarLoop]: Abstraction has 15902 states and 78118 transitions. [2021-10-13 19:18:29,416 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 19:18:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 15902 states and 78118 transitions. [2021-10-13 19:18:29,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:29,417 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:29,417 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1] [2021-10-13 19:18:29,447 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 19:18:29,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,51 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:29,622 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:29,622 INFO L82 PathProgramCache]: Analyzing trace with hash 266201248, now seen corresponding path program 2 times [2021-10-13 19:18:29,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:29,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810361679] [2021-10-13 19:18:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:29,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:29,853 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:29,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:29,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810361679] [2021-10-13 19:18:29,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810361679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:29,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664154175] [2021-10-13 19:18:29,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:18:29,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:29,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:29,856 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 19:18:29,857 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 19:18:30,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:18:30,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:18:30,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:30,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:30,740 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 19:18:30,814 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:30,814 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 28 treesize of output 27 [2021-10-13 19:18:31,260 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:31,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:18:31,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:18:31,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:31,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664154175] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:31,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:31,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:31,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086319078] [2021-10-13 19:18:31,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:31,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:31,309 INFO L87 Difference]: Start difference. First operand 15902 states and 78118 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 19:18:32,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:32,591 INFO L93 Difference]: Finished difference Result 24864 states and 120188 transitions. [2021-10-13 19:18:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:18:32,592 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 19:18:32,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:32,721 INFO L225 Difference]: With dead ends: 24864 [2021-10-13 19:18:32,722 INFO L226 Difference]: Without dead ends: 24864 [2021-10-13 19:18:32,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1208.6ms TimeCoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 19:18:32,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24864 states. [2021-10-13 19:18:33,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24864 to 16681. [2021-10-13 19:18:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16681 states, 16601 states have (on average 5.006565869525932) internal successors, (83114), 16680 states have internal predecessors, (83114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16681 states to 16681 states and 83114 transitions. [2021-10-13 19:18:33,613 INFO L78 Accepts]: Start accepts. Automaton has 16681 states and 83114 transitions. Word has length 14 [2021-10-13 19:18:33,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:33,613 INFO L470 AbstractCegarLoop]: Abstraction has 16681 states and 83114 transitions. [2021-10-13 19:18:33,613 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 19:18:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 16681 states and 83114 transitions. [2021-10-13 19:18:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:33,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:33,614 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1] [2021-10-13 19:18:33,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-10-13 19:18:33,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,52 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:33,815 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:33,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:33,816 INFO L82 PathProgramCache]: Analyzing trace with hash 266201251, now seen corresponding path program 2 times [2021-10-13 19:18:33,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:33,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485748548] [2021-10-13 19:18:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:33,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:34,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:34,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485748548] [2021-10-13 19:18:34,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485748548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:34,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096274292] [2021-10-13 19:18:34,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:18:34,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:34,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:34,076 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 19:18:34,096 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 19:18:34,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:18:34,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:18:34,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:18:34,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:35,266 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 19:18:35,358 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:35,359 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 33 [2021-10-13 19:18:35,580 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:35,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 33 [2021-10-13 19:18:35,667 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:18:35,668 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 34 treesize of output 21 [2021-10-13 19:18:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:35,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096274292] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:35,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:35,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:35,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85508732] [2021-10-13 19:18:35,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:35,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:35,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:35,674 INFO L87 Difference]: Start difference. First operand 16681 states and 83114 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 19:18:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:38,547 INFO L93 Difference]: Finished difference Result 25505 states and 122958 transitions. [2021-10-13 19:18:38,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 19:18:38,550 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 19:18:38,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:39,006 INFO L225 Difference]: With dead ends: 25505 [2021-10-13 19:18:39,006 INFO L226 Difference]: Without dead ends: 25505 [2021-10-13 19:18:39,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 2098.5ms TimeCoverageRelationStatistics Valid=257, Invalid=1813, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 19:18:39,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25505 states. [2021-10-13 19:18:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25505 to 16533. [2021-10-13 19:18:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16533 states, 16453 states have (on average 4.987965720537288) internal successors, (82067), 16532 states have internal predecessors, (82067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16533 states to 16533 states and 82067 transitions. [2021-10-13 19:18:39,848 INFO L78 Accepts]: Start accepts. Automaton has 16533 states and 82067 transitions. Word has length 14 [2021-10-13 19:18:39,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:39,848 INFO L470 AbstractCegarLoop]: Abstraction has 16533 states and 82067 transitions. [2021-10-13 19:18:39,849 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 19:18:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 16533 states and 82067 transitions. [2021-10-13 19:18:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:39,851 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:39,851 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:39,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-13 19:18:40,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,53 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:40,057 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash -957779085, now seen corresponding path program 1 times [2021-10-13 19:18:40,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:40,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471482643] [2021-10-13 19:18:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:40,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:40,331 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 19:18:40,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:40,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471482643] [2021-10-13 19:18:40,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471482643] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:40,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907082432] [2021-10-13 19:18:40,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:40,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:40,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:40,333 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 19:18:40,349 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 19:18:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:41,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:41,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:41,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:41,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2021-10-13 19:18:41,272 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 19:18:41,364 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:41,364 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 28 treesize of output 27 [2021-10-13 19:18:41,493 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:41,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 19:18:41,564 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:41,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:18:41,622 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:41,623 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 27 treesize of output 26 [2021-10-13 19:18:41,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:18:41,664 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 19:18:41,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907082432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:41,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:41,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:41,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973799332] [2021-10-13 19:18:41,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:41,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:41,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:41,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:41,666 INFO L87 Difference]: Start difference. First operand 16533 states and 82067 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 19:18:43,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:43,003 INFO L93 Difference]: Finished difference Result 25844 states and 123981 transitions. [2021-10-13 19:18:43,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:18:43,003 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 19:18:43,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:43,165 INFO L225 Difference]: With dead ends: 25844 [2021-10-13 19:18:43,165 INFO L226 Difference]: Without dead ends: 25844 [2021-10-13 19:18:43,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 847.4ms TimeCoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:18:43,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25844 states. [2021-10-13 19:18:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25844 to 16693. [2021-10-13 19:18:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16693 states, 16613 states have (on average 4.971708902666586) internal successors, (82595), 16692 states have internal predecessors, (82595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16693 states to 16693 states and 82595 transitions. [2021-10-13 19:18:44,051 INFO L78 Accepts]: Start accepts. Automaton has 16693 states and 82595 transitions. Word has length 14 [2021-10-13 19:18:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:44,052 INFO L470 AbstractCegarLoop]: Abstraction has 16693 states and 82595 transitions. [2021-10-13 19:18:44,052 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 19:18:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 16693 states and 82595 transitions. [2021-10-13 19:18:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:44,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:44,054 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:44,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2021-10-13 19:18:44,254 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,SelfDestructingSolverStorable64 [2021-10-13 19:18:44,255 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:44,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:44,256 INFO L82 PathProgramCache]: Analyzing trace with hash -957779082, now seen corresponding path program 1 times [2021-10-13 19:18:44,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:44,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923281371] [2021-10-13 19:18:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:44,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:44,514 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 19:18:44,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:44,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923281371] [2021-10-13 19:18:44,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923281371] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:44,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504847812] [2021-10-13 19:18:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:44,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:44,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:44,516 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 19:18:44,536 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 19:18:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:45,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 19:18:45,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:45,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:45,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1038 treesize of output 974 [2021-10-13 19:18:45,604 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 27 treesize of output 23 [2021-10-13 19:18:45,711 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:45,711 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 33 treesize of output 32 [2021-10-13 19:18:45,894 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:45,894 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 19:18:46,009 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:46,010 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 1 case distinctions, treesize of input 34 treesize of output 33 [2021-10-13 19:18:46,110 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:18:46,111 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 19:18:46,193 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:18:46,194 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 36 treesize of output 23 [2021-10-13 19:18:46,220 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 19:18:46,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504847812] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:46,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:46,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-13 19:18:46,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845895613] [2021-10-13 19:18:46,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:18:46,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:18:46,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:18:46,222 INFO L87 Difference]: Start difference. First operand 16693 states and 82595 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 19:18:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:48,556 INFO L93 Difference]: Finished difference Result 26404 states and 122927 transitions. [2021-10-13 19:18:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 19:18:48,557 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 19:18:48,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:48,690 INFO L225 Difference]: With dead ends: 26404 [2021-10-13 19:18:48,691 INFO L226 Difference]: Without dead ends: 26384 [2021-10-13 19:18:48,691 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1547.4ms TimeCoverageRelationStatistics Valid=227, Invalid=1255, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:18:48,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26384 states. [2021-10-13 19:18:49,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26384 to 16513. [2021-10-13 19:18:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16513 states, 16433 states have (on average 4.965009432240005) internal successors, (81590), 16512 states have internal predecessors, (81590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16513 states to 16513 states and 81590 transitions. [2021-10-13 19:18:49,465 INFO L78 Accepts]: Start accepts. Automaton has 16513 states and 81590 transitions. Word has length 14 [2021-10-13 19:18:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:49,465 INFO L470 AbstractCegarLoop]: Abstraction has 16513 states and 81590 transitions. [2021-10-13 19:18:49,465 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 19:18:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 16513 states and 81590 transitions. [2021-10-13 19:18:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:49,467 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:49,467 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:49,499 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 19:18:49,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,55 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:49,678 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:49,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:49,680 INFO L82 PathProgramCache]: Analyzing trace with hash -68819686, now seen corresponding path program 1 times [2021-10-13 19:18:49,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:49,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991729452] [2021-10-13 19:18:49,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:49,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:49,951 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 19:18:49,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:49,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991729452] [2021-10-13 19:18:49,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991729452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:49,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255431365] [2021-10-13 19:18:49,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:49,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:49,955 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 19:18:49,959 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 19:18:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:50,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 19:18:50,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:50,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:50,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:18:50,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-10-13 19:18:51,156 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 19:18:51,246 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:51,247 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 19:18:51,335 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:51,335 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 19:18:51,452 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:51,453 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 28 treesize of output 27 [2021-10-13 19:18:51,526 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:51,526 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 28 treesize of output 27 [2021-10-13 19:18:51,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:18:51,569 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 19:18:51,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255431365] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:51,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:51,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-13 19:18:51,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928249815] [2021-10-13 19:18:51,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 19:18:51,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:51,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 19:18:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2021-10-13 19:18:51,570 INFO L87 Difference]: Start difference. First operand 16513 states and 81590 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 19:18:52,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:52,680 INFO L93 Difference]: Finished difference Result 25888 states and 125479 transitions. [2021-10-13 19:18:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:18:52,681 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 19:18:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:52,829 INFO L225 Difference]: With dead ends: 25888 [2021-10-13 19:18:52,830 INFO L226 Difference]: Without dead ends: 25888 [2021-10-13 19:18:52,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 901.1ms TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:18:52,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25888 states. [2021-10-13 19:18:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25888 to 17293. [2021-10-13 19:18:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17293 states, 17213 states have (on average 4.957067332829838) internal successors, (85326), 17292 states have internal predecessors, (85326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:53,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17293 states to 17293 states and 85326 transitions. [2021-10-13 19:18:53,705 INFO L78 Accepts]: Start accepts. Automaton has 17293 states and 85326 transitions. Word has length 14 [2021-10-13 19:18:53,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:53,705 INFO L470 AbstractCegarLoop]: Abstraction has 17293 states and 85326 transitions. [2021-10-13 19:18:53,705 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 19:18:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 17293 states and 85326 transitions. [2021-10-13 19:18:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:53,707 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:53,707 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:53,735 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 19:18:53,908 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,SelfDestructingSolverStorable66 [2021-10-13 19:18:53,908 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:53,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:53,910 INFO L82 PathProgramCache]: Analyzing trace with hash -68819683, now seen corresponding path program 1 times [2021-10-13 19:18:53,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:53,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572223149] [2021-10-13 19:18:53,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:53,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:54,167 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 19:18:54,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:54,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572223149] [2021-10-13 19:18:54,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572223149] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:54,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829011277] [2021-10-13 19:18:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:54,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:54,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:54,172 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 19:18:54,400 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 19:18:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:55,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:18:55,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:18:55,320 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 19:18:55,397 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:55,397 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 19:18:55,489 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:55,490 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 19:18:55,643 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:55,644 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 19:18:55,717 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:18:55,718 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 19:18:55,766 INFO L354 Elim1Store]: treesize reduction 12, result has 20.0 percent of original size [2021-10-13 19:18:55,767 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 22 treesize of output 10 [2021-10-13 19:18:55,799 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 19:18:55,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829011277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:55,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:18:55,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2021-10-13 19:18:55,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834386008] [2021-10-13 19:18:55,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 19:18:55,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:55,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 19:18:55,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:18:55,802 INFO L87 Difference]: Start difference. First operand 17293 states and 85326 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 19:18:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:57,267 INFO L93 Difference]: Finished difference Result 25660 states and 124036 transitions. [2021-10-13 19:18:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:18:57,268 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 19:18:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:57,678 INFO L225 Difference]: With dead ends: 25660 [2021-10-13 19:18:57,679 INFO L226 Difference]: Without dead ends: 25642 [2021-10-13 19:18:57,679 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1080.5ms TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2021-10-13 19:18:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25642 states. [2021-10-13 19:18:58,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25642 to 17029. [2021-10-13 19:18:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17029 states, 16949 states have (on average 4.947784530060771) internal successors, (83860), 17028 states have internal predecessors, (83860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:58,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17029 states to 17029 states and 83860 transitions. [2021-10-13 19:18:58,629 INFO L78 Accepts]: Start accepts. Automaton has 17029 states and 83860 transitions. Word has length 14 [2021-10-13 19:18:58,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:58,630 INFO L470 AbstractCegarLoop]: Abstraction has 17029 states and 83860 transitions. [2021-10-13 19:18:58,630 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 19:18:58,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17029 states and 83860 transitions. [2021-10-13 19:18:58,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:18:58,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:58,640 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:58,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-10-13 19:18:58,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,57 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:58,854 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:18:58,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:58,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1864966269, now seen corresponding path program 2 times [2021-10-13 19:18:58,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:58,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514296370] [2021-10-13 19:18:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:58,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:59,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:59,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514296370] [2021-10-13 19:18:59,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514296370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:18:59,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410956479] [2021-10-13 19:18:59,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:18:59,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:18:59,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:18:59,167 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 19:18:59,175 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 19:18:59,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:18:59,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:18:59,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 19:18:59,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:19:00,055 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 19:19:00,144 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:19:00,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:19:00,247 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:19:00,247 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 19:19:00,332 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-13 19:19:00,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:19:00,481 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-13 19:19:00,482 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 36 treesize of output 23 [2021-10-13 19:19:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:19:00,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410956479] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:00,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:19:00,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:19:00,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335786332] [2021-10-13 19:19:00,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:19:00,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:19:00,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:19:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:19:00,487 INFO L87 Difference]: Start difference. First operand 17029 states and 83860 transitions. Second operand has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 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 19:19:01,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:19:01,926 INFO L93 Difference]: Finished difference Result 24481 states and 122671 transitions. [2021-10-13 19:19:01,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:19:01,926 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 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 19:19:01,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:19:02,077 INFO L225 Difference]: With dead ends: 24481 [2021-10-13 19:19:02,077 INFO L226 Difference]: Without dead ends: 24481 [2021-10-13 19:19:02,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 915.3ms TimeCoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:19:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24481 states. [2021-10-13 19:19:02,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24481 to 19280. [2021-10-13 19:19:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19280 states, 19200 states have (on average 5.062708333333333) internal successors, (97204), 19279 states have internal predecessors, (97204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:19:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19280 states to 19280 states and 97204 transitions. [2021-10-13 19:19:03,010 INFO L78 Accepts]: Start accepts. Automaton has 19280 states and 97204 transitions. Word has length 14 [2021-10-13 19:19:03,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:19:03,011 INFO L470 AbstractCegarLoop]: Abstraction has 19280 states and 97204 transitions. [2021-10-13 19:19:03,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 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 19:19:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand 19280 states and 97204 transitions. [2021-10-13 19:19:03,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:19:03,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:19:03,013 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:19:03,044 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 19:19:03,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-10-13 19:19:03,214 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:19:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:19:03,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1864966272, now seen corresponding path program 1 times [2021-10-13 19:19:03,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:19:03,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828494630] [2021-10-13 19:19:03,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:19:03,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:19:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:19:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:19:03,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:19:03,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828494630] [2021-10-13 19:19:03,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828494630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:03,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631717102] [2021-10-13 19:19:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:19:03,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:19:03,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:19:03,478 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 19:19:03,498 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 19:19:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:19:04,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 19:19:04,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:19:04,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:19:04,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 19:19:04,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2021-10-13 19:19:04,500 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 19:19:04,566 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:04,567 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 19:19:04,628 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:04,629 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 19:19:04,683 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:04,684 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 19:19:04,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:19:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:19:04,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631717102] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:04,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:19:04,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 19:19:04,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201738638] [2021-10-13 19:19:04,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 19:19:04,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:19:04,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 19:19:04,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:19:04,759 INFO L87 Difference]: Start difference. First operand 19280 states and 97204 transitions. Second operand has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 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 19:19:06,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:19:06,416 INFO L93 Difference]: Finished difference Result 30261 states and 145772 transitions. [2021-10-13 19:19:06,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 19:19:06,417 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 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 19:19:06,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:19:06,624 INFO L225 Difference]: With dead ends: 30261 [2021-10-13 19:19:06,624 INFO L226 Difference]: Without dead ends: 30261 [2021-10-13 19:19:06,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 798.3ms TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2021-10-13 19:19:06,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30261 states. [2021-10-13 19:19:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30261 to 19671. [2021-10-13 19:19:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19671 states, 19591 states have (on average 4.984891021387372) internal successors, (97659), 19670 states have internal predecessors, (97659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:19:07,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19671 states to 19671 states and 97659 transitions. [2021-10-13 19:19:07,683 INFO L78 Accepts]: Start accepts. Automaton has 19671 states and 97659 transitions. Word has length 14 [2021-10-13 19:19:07,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:19:07,684 INFO L470 AbstractCegarLoop]: Abstraction has 19671 states and 97659 transitions. [2021-10-13 19:19:07,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 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 19:19:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 19671 states and 97659 transitions. [2021-10-13 19:19:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:19:07,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:19:07,687 INFO L512 BasicCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:19:07,718 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 19:19:07,887 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,SelfDestructingSolverStorable69 [2021-10-13 19:19:07,888 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:19:07,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:19:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash 574462253, now seen corresponding path program 2 times [2021-10-13 19:19:07,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:19:07,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107373692] [2021-10-13 19:19:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:19:07,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:19:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:19:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:19:08,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:19:08,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107373692] [2021-10-13 19:19:08,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107373692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:08,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595884958] [2021-10-13 19:19:08,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:19:08,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:19:08,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:19:08,156 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 19:19:08,156 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 19:19:09,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:19:09,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:19:09,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:19:09,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:19:09,209 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 19:19:09,268 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:09,269 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 19:19:09,344 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:09,344 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 19:19:09,500 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:09,500 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 19:19:09,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-13 19:19:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:19:09,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595884958] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:09,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:19:09,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-13 19:19:09,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633388651] [2021-10-13 19:19:09,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:19:09,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:19:09,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:19:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:19:09,898 INFO L87 Difference]: Start difference. First operand 19671 states and 97659 transitions. Second operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 19:19:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:19:11,354 INFO L93 Difference]: Finished difference Result 28541 states and 136711 transitions. [2021-10-13 19:19:11,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:19:11,355 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 19:19:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:19:11,539 INFO L225 Difference]: With dead ends: 28541 [2021-10-13 19:19:11,539 INFO L226 Difference]: Without dead ends: 28541 [2021-10-13 19:19:11,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1016.5ms TimeCoverageRelationStatistics Valid=143, Invalid=1047, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:19:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28541 states. [2021-10-13 19:19:12,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28541 to 19509. [2021-10-13 19:19:12,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19509 states, 19429 states have (on average 4.983529775078491) internal successors, (96825), 19508 states have internal predecessors, (96825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:19:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19509 states to 19509 states and 96825 transitions. [2021-10-13 19:19:12,612 INFO L78 Accepts]: Start accepts. Automaton has 19509 states and 96825 transitions. Word has length 15 [2021-10-13 19:19:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:19:12,612 INFO L470 AbstractCegarLoop]: Abstraction has 19509 states and 96825 transitions. [2021-10-13 19:19:12,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 19:19:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 19509 states and 96825 transitions. [2021-10-13 19:19:12,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:19:12,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:19:12,615 INFO L512 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:19:12,644 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 19:19:12,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,60 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:19:12,816 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2021-10-13 19:19:12,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:19:12,817 INFO L82 PathProgramCache]: Analyzing trace with hash -719467106, now seen corresponding path program 1 times [2021-10-13 19:19:12,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:19:12,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230486898] [2021-10-13 19:19:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:19:12,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:19:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:19:13,369 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 19:19:13,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:19:13,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230486898] [2021-10-13 19:19:13,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230486898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:13,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520420507] [2021-10-13 19:19:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:19:13,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:19:13,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:19:13,377 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 19:19:13,394 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 19:19:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:19:14,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 19:19:14,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:19:14,437 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 19:19:14,515 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:14,515 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 19:19:14,639 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:14,639 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 19:19:14,760 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-13 19:19:14,761 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 19:19:14,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-10-13 19:19:14,812 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 19:19:14,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520420507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:19:14,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:19:14,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-13 19:19:14,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637569154] [2021-10-13 19:19:14,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 19:19:14,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:19:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 19:19:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:19:14,814 INFO L87 Difference]: Start difference. First operand 19509 states and 96825 transitions. Second operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 19:19:16,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:19:16,536 INFO L93 Difference]: Finished difference Result 29158 states and 142582 transitions. [2021-10-13 19:19:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:19:16,537 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 19:19:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted.