/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 16:12:39,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 16:12:39,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 16:12:39,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 16:12:39,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 16:12:39,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 16:12:39,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 16:12:39,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 16:12:39,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 16:12:39,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 16:12:39,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 16:12:39,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 16:12:39,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 16:12:39,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 16:12:39,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 16:12:39,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 16:12:39,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-08 16:12:39,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 16:12:39,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 16:12:39,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 16:12:39,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 16:12:39,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 16:12:39,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 16:12:39,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 16:12:39,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 16:12:39,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 16:12:39,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 16:12:39,673 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 16:12:39,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 16:12:39,675 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 16:12:39,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 16:12:39,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 16:12:39,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 16:12:39,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 16:12:39,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 16:12:39,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 16:12:39,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 16:12:39,677 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 16:12:39,677 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 16:12:39,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 16:12:39,678 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 16:12:39,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 16:12:39,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 16:12:39,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 16:12:39,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 16:12:39,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:12:39,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 16:12:39,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 16:12:39,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 16:12:39,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 16:12:39,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 16:12:39,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 16:12:39,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 16:12:39,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 16:12:40,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 16:12:40,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 16:12:40,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 16:12:40,123 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 16:12:40,124 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 16:12:40,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2021-10-08 16:12:40,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19c64ee26/d1f80025f3894f959710a28b81b50237/FLAG7fe48dc7c [2021-10-08 16:12:40,904 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 16:12:40,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2021-10-08 16:12:40,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19c64ee26/d1f80025f3894f959710a28b81b50237/FLAG7fe48dc7c [2021-10-08 16:12:41,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19c64ee26/d1f80025f3894f959710a28b81b50237 [2021-10-08 16:12:41,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 16:12:41,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 16:12:41,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 16:12:41,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 16:12:41,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 16:12:41,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:12:41" (1/1) ... [2021-10-08 16:12:41,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182a8888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:41, skipping insertion in model container [2021-10-08 16:12:41,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:12:41" (1/1) ... [2021-10-08 16:12:41,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 16:12:41,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 16:12:41,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2541,2554] [2021-10-08 16:12:41,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:12:41,990 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 16:12:42,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2541,2554] [2021-10-08 16:12:42,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:12:42,140 INFO L208 MainTranslator]: Completed translation [2021-10-08 16:12:42,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42 WrapperNode [2021-10-08 16:12:42,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 16:12:42,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 16:12:42,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 16:12:42,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 16:12:42,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 16:12:42,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 16:12:42,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 16:12:42,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 16:12:42,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 16:12:42,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 16:12:42,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 16:12:42,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 16:12:42,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:12:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:42,522 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) [2021-10-08 16:12:42,551 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 [2021-10-08 16:12:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 16:12:42,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 16:12:42,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 16:12:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 16:12:42,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 16:12:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 16:12:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 16:12:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 16:12:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 16:12:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 16:12:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 16:12:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 16:12:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 16:12:42,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 16:12:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 16:12:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 16:12:42,674 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 16:12:43,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 16:12:43,372 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-08 16:12:43,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:12:43 BoogieIcfgContainer [2021-10-08 16:12:43,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 16:12:43,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 16:12:43,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 16:12:43,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 16:12:43,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 04:12:41" (1/3) ... [2021-10-08 16:12:43,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbf55c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:12:43, skipping insertion in model container [2021-10-08 16:12:43,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (2/3) ... [2021-10-08 16:12:43,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbf55c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:12:43, skipping insertion in model container [2021-10-08 16:12:43,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:12:43" (3/3) ... [2021-10-08 16:12:43,384 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array.wvr.c [2021-10-08 16:12:43,390 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 16:12:43,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 16:12:43,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-08 16:12:43,390 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 16:12:43,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,439 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,440 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,441 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,441 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,442 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,443 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,444 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,444 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,445 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,446 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,446 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,446 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,446 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,448 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,450 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,452 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,453 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,453 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,453 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,454 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,454 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,454 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,454 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,455 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,455 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,456 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,457 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,457 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,457 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,457 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,457 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,458 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,458 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,458 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,458 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,458 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,459 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,459 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,459 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,459 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,460 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,460 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,460 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,460 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,460 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,461 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,461 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,461 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,465 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,465 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,465 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,465 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,465 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,467 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,468 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,468 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,468 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,468 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,469 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,471 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,471 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,471 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,472 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,472 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,472 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,480 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 16:12:43,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 16:12:43,565 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 [2021-10-08 16:12:43,566 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-08 16:12:43,596 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 16:12:43,612 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 154 transitions, 332 flow [2021-10-08 16:12:43,617 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 154 transitions, 332 flow [2021-10-08 16:12:43,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 154 transitions, 332 flow [2021-10-08 16:12:43,748 INFO L129 PetriNetUnfolder]: 12/151 cut-off events. [2021-10-08 16:12:43,748 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 16:12:43,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 151 events. 12/151 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2021-10-08 16:12:43,761 INFO L116 LiptonReduction]: Number of co-enabled transitions 2184 [2021-10-08 16:12:51,649 INFO L131 LiptonReduction]: Checked pairs total: 2920 [2021-10-08 16:12:51,650 INFO L133 LiptonReduction]: Total number of compositions: 160 [2021-10-08 16:12:51,660 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 35 transitions, 94 flow [2021-10-08 16:12:51,698 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 16:12:51,708 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:51,709 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 16:12:51,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:51,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:51,716 INFO L82 PathProgramCache]: Analyzing trace with hash 20804, now seen corresponding path program 1 times [2021-10-08 16:12:51,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:51,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661172595] [2021-10-08 16:12:51,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:51,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:51,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:51,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661172595] [2021-10-08 16:12:51,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661172595] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:51,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:51,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 16:12:51,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843579034] [2021-10-08 16:12:51,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:51,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:51,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:51,951 INFO L87 Difference]: Start difference. First operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:52,021 INFO L93 Difference]: Finished difference Result 735 states and 2405 transitions. [2021-10-08 16:12:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:52,023 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 [2021-10-08 16:12:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:52,051 INFO L225 Difference]: With dead ends: 735 [2021-10-08 16:12:52,051 INFO L226 Difference]: Without dead ends: 735 [2021-10-08 16:12:52,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:52,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-08 16:12:52,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 370. [2021-10-08 16:12:52,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 3.526315789473684) internal successors, (1206), 369 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1206 transitions. [2021-10-08 16:12:52,178 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1206 transitions. Word has length 2 [2021-10-08 16:12:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:52,178 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1206 transitions. [2021-10-08 16:12:52,179 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) [2021-10-08 16:12:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1206 transitions. [2021-10-08 16:12:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:12:52,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:52,180 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:12:52,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 16:12:52,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:52,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:52,181 INFO L82 PathProgramCache]: Analyzing trace with hash 646012, now seen corresponding path program 1 times [2021-10-08 16:12:52,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:52,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103431673] [2021-10-08 16:12:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:52,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103431673] [2021-10-08 16:12:52,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103431673] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:52,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654420543] [2021-10-08 16:12:52,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:52,326 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) [2021-10-08 16:12:52,334 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 [2021-10-08 16:12:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:52,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654420543] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:52,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:52,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-08 16:12:52,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109784750] [2021-10-08 16:12:52,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:52,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:52,512 INFO L87 Difference]: Start difference. First operand 370 states and 1206 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:52,569 INFO L93 Difference]: Finished difference Result 1101 states and 3607 transitions. [2021-10-08 16:12:52,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:12:52,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 16:12:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:52,584 INFO L225 Difference]: With dead ends: 1101 [2021-10-08 16:12:52,584 INFO L226 Difference]: Without dead ends: 1101 [2021-10-08 16:12:52,585 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:52,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2021-10-08 16:12:52,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 371. [2021-10-08 16:12:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 343 states have (on average 3.5247813411078717) internal successors, (1209), 370 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 1209 transitions. [2021-10-08 16:12:52,621 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 1209 transitions. Word has length 3 [2021-10-08 16:12:52,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:52,622 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 1209 transitions. [2021-10-08 16:12:52,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 1209 transitions. [2021-10-08 16:12:52,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:12:52,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:52,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:12:52,667 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 [2021-10-08 16:12:52,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:52,837 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:52,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:52,837 INFO L82 PathProgramCache]: Analyzing trace with hash 646029, now seen corresponding path program 1 times [2021-10-08 16:12:52,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:52,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412252150] [2021-10-08 16:12:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:52,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412252150] [2021-10-08 16:12:52,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412252150] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:52,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861176346] [2021-10-08 16:12:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:52,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:52,928 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) [2021-10-08 16:12:52,947 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 [2021-10-08 16:12:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:52,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:53,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861176346] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:53,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:53,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-08 16:12:53,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887989350] [2021-10-08 16:12:53,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:12:53,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:53,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:12:53,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:53,014 INFO L87 Difference]: Start difference. First operand 371 states and 1209 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) [2021-10-08 16:12:53,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:53,047 INFO L93 Difference]: Finished difference Result 735 states and 2406 transitions. [2021-10-08 16:12:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:53,047 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 [2021-10-08 16:12:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:53,055 INFO L225 Difference]: With dead ends: 735 [2021-10-08 16:12:53,056 INFO L226 Difference]: Without dead ends: 735 [2021-10-08 16:12:53,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-08 16:12:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 370. [2021-10-08 16:12:53,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 343 states have (on average 3.5189504373177845) internal successors, (1207), 369 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1207 transitions. [2021-10-08 16:12:53,095 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1207 transitions. Word has length 3 [2021-10-08 16:12:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:53,096 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1207 transitions. [2021-10-08 16:12:53,096 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) [2021-10-08 16:12:53,096 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1207 transitions. [2021-10-08 16:12:53,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 16:12:53,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:53,097 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-08 16:12:53,135 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 [2021-10-08 16:12:53,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,311 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash 20027460, now seen corresponding path program 2 times [2021-10-08 16:12:53,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:53,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782419276] [2021-10-08 16:12:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:53,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:53,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782419276] [2021-10-08 16:12:53,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782419276] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:53,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090212054] [2021-10-08 16:12:53,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:12:53,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:53,373 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) [2021-10-08 16:12:53,383 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 [2021-10-08 16:12:53,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:12:53,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:53,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:12:53,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:12:53,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090212054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:53,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:53,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-08 16:12:53,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862823917] [2021-10-08 16:12:53,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:53,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:53,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:53,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:53,463 INFO L87 Difference]: Start difference. First operand 370 states and 1207 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) [2021-10-08 16:12:53,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:53,474 INFO L93 Difference]: Finished difference Result 369 states and 1206 transitions. [2021-10-08 16:12:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:53,475 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 [2021-10-08 16:12:53,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:53,480 INFO L225 Difference]: With dead ends: 369 [2021-10-08 16:12:53,480 INFO L226 Difference]: Without dead ends: 369 [2021-10-08 16:12:53,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-10-08 16:12:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 367. [2021-10-08 16:12:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 341 states have (on average 3.5249266862170088) internal successors, (1202), 366 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 1202 transitions. [2021-10-08 16:12:53,495 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 1202 transitions. Word has length 4 [2021-10-08 16:12:53,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:53,496 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 1202 transitions. [2021-10-08 16:12:53,496 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) [2021-10-08 16:12:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 1202 transitions. [2021-10-08 16:12:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 16:12:53,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:53,497 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 16:12:53,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-08 16:12:53,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,712 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:53,714 INFO L82 PathProgramCache]: Analyzing trace with hash 620936576, now seen corresponding path program 1 times [2021-10-08 16:12:53,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:53,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599397079] [2021-10-08 16:12:53,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:53,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:53,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599397079] [2021-10-08 16:12:53,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599397079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:53,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:53,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:53,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621872372] [2021-10-08 16:12:53,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:53,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:53,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:53,791 INFO L87 Difference]: Start difference. First operand 367 states and 1202 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2021-10-08 16:12:53,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:53,818 INFO L93 Difference]: Finished difference Result 545 states and 1773 transitions. [2021-10-08 16:12:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:53,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2021-10-08 16:12:53,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:53,824 INFO L225 Difference]: With dead ends: 545 [2021-10-08 16:12:53,825 INFO L226 Difference]: Without dead ends: 545 [2021-10-08 16:12:53,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-10-08 16:12:53,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 429. [2021-10-08 16:12:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 3.6501240694789083) internal successors, (1471), 428 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1471 transitions. [2021-10-08 16:12:53,848 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1471 transitions. Word has length 5 [2021-10-08 16:12:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:53,848 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 1471 transitions. [2021-10-08 16:12:53,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2021-10-08 16:12:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1471 transitions. [2021-10-08 16:12:53,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 16:12:53,850 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:53,850 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 16:12:53,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 16:12:53,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:53,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:53,851 INFO L82 PathProgramCache]: Analyzing trace with hash 2069165792, now seen corresponding path program 1 times [2021-10-08 16:12:53,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:53,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266327855] [2021-10-08 16:12:53,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:53,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:53,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266327855] [2021-10-08 16:12:53,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266327855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:53,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431068643] [2021-10-08 16:12:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:53,923 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) [2021-10-08 16:12:53,943 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 [2021-10-08 16:12:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:12:53,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:54,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431068643] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:54,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:54,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2021-10-08 16:12:54,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503808037] [2021-10-08 16:12:54,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:54,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:54,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:12:54,066 INFO L87 Difference]: Start difference. First operand 429 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:54,104 INFO L93 Difference]: Finished difference Result 430 states and 1472 transitions. [2021-10-08 16:12:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:54,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 [2021-10-08 16:12:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:54,113 INFO L225 Difference]: With dead ends: 430 [2021-10-08 16:12:54,113 INFO L226 Difference]: Without dead ends: 430 [2021-10-08 16:12:54,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:12:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-10-08 16:12:54,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-10-08 16:12:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 404 states have (on average 3.6435643564356437) internal successors, (1472), 429 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1472 transitions. [2021-10-08 16:12:54,154 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1472 transitions. Word has length 6 [2021-10-08 16:12:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:54,154 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 1472 transitions. [2021-10-08 16:12:54,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1472 transitions. [2021-10-08 16:12:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:12:54,156 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:54,156 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:54,199 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 [2021-10-08 16:12:54,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,370 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:54,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:54,372 INFO L82 PathProgramCache]: Analyzing trace with hash -358701800, now seen corresponding path program 1 times [2021-10-08 16:12:54,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:54,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272303120] [2021-10-08 16:12:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:54,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:54,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272303120] [2021-10-08 16:12:54,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272303120] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:54,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007242413] [2021-10-08 16:12:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:54,480 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) [2021-10-08 16:12:54,500 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 [2021-10-08 16:12:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:54,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:54,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:54,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007242413] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:54,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:54,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:12:54,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086874657] [2021-10-08 16:12:54,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:54,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:54,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:54,595 INFO L87 Difference]: Start difference. First operand 430 states and 1472 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2021-10-08 16:12:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:54,642 INFO L93 Difference]: Finished difference Result 724 states and 2407 transitions. [2021-10-08 16:12:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:12:54,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 7 [2021-10-08 16:12:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:54,654 INFO L225 Difference]: With dead ends: 724 [2021-10-08 16:12:54,663 INFO L226 Difference]: Without dead ends: 724 [2021-10-08 16:12:54,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-10-08 16:12:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 492. [2021-10-08 16:12:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 466 states have (on average 3.869098712446352) internal successors, (1803), 491 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 1803 transitions. [2021-10-08 16:12:54,691 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 1803 transitions. Word has length 7 [2021-10-08 16:12:54,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:54,693 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 1803 transitions. [2021-10-08 16:12:54,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2021-10-08 16:12:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 1803 transitions. [2021-10-08 16:12:54,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:12:54,694 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:54,694 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:54,734 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 [2021-10-08 16:12:54,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,900 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:54,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:54,901 INFO L82 PathProgramCache]: Analyzing trace with hash -358701799, now seen corresponding path program 1 times [2021-10-08 16:12:54,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:54,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678557724] [2021-10-08 16:12:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:54,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:54,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678557724] [2021-10-08 16:12:54,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678557724] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:54,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149220704] [2021-10-08 16:12:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:54,942 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) [2021-10-08 16:12:54,954 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 [2021-10-08 16:12:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:55,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:55,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149220704] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:55,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:55,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-08 16:12:55,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079148941] [2021-10-08 16:12:55,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:12:55,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:55,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:12:55,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:55,043 INFO L87 Difference]: Start difference. First operand 492 states and 1803 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-08 16:12:55,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:55,062 INFO L93 Difference]: Finished difference Result 546 states and 1834 transitions. [2021-10-08 16:12:55,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:55,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 7 [2021-10-08 16:12:55,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:55,069 INFO L225 Difference]: With dead ends: 546 [2021-10-08 16:12:55,069 INFO L226 Difference]: Without dead ends: 546 [2021-10-08 16:12:55,070 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:55,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-10-08 16:12:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 430. [2021-10-08 16:12:55,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 413 states have (on average 3.709443099273608) internal successors, (1532), 429 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1532 transitions. [2021-10-08 16:12:55,090 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1532 transitions. Word has length 7 [2021-10-08 16:12:55,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:55,090 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 1532 transitions. [2021-10-08 16:12:55,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-08 16:12:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1532 transitions. [2021-10-08 16:12:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:12:55,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:55,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:55,129 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 [2021-10-08 16:12:55,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:55,305 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:55,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:55,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1770028135, now seen corresponding path program 1 times [2021-10-08 16:12:55,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:55,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422184792] [2021-10-08 16:12:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:55,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:55,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422184792] [2021-10-08 16:12:55,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422184792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:55,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:55,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:55,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115822588] [2021-10-08 16:12:55,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:55,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:55,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:55,360 INFO L87 Difference]: Start difference. First operand 430 states and 1532 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2021-10-08 16:12:55,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:55,381 INFO L93 Difference]: Finished difference Result 598 states and 2131 transitions. [2021-10-08 16:12:55,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:55,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2021-10-08 16:12:55,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:55,387 INFO L225 Difference]: With dead ends: 598 [2021-10-08 16:12:55,388 INFO L226 Difference]: Without dead ends: 598 [2021-10-08 16:12:55,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:55,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2021-10-08 16:12:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 512. [2021-10-08 16:12:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 495 states have (on average 3.8585858585858586) internal successors, (1910), 511 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 1910 transitions. [2021-10-08 16:12:55,410 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 1910 transitions. Word has length 8 [2021-10-08 16:12:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 1910 transitions. [2021-10-08 16:12:55,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2021-10-08 16:12:55,411 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 1910 transitions. [2021-10-08 16:12:55,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:12:55,413 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:55,413 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:55,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-08 16:12:55,414 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:55,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:55,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1765147208, now seen corresponding path program 2 times [2021-10-08 16:12:55,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:55,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074009731] [2021-10-08 16:12:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:55,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:55,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074009731] [2021-10-08 16:12:55,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074009731] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:55,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21580949] [2021-10-08 16:12:55,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:12:55,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:55,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:55,525 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) [2021-10-08 16:12:55,528 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 [2021-10-08 16:12:55,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:12:55,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:55,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:55,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:12:55,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21580949] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:55,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:55,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2021-10-08 16:12:55,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740134722] [2021-10-08 16:12:55,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:55,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:55,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:55,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:12:55,627 INFO L87 Difference]: Start difference. First operand 512 states and 1910 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) [2021-10-08 16:12:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:55,647 INFO L93 Difference]: Finished difference Result 364 states and 1362 transitions. [2021-10-08 16:12:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:55,648 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 [2021-10-08 16:12:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:55,651 INFO L225 Difference]: With dead ends: 364 [2021-10-08 16:12:55,652 INFO L226 Difference]: Without dead ends: 356 [2021-10-08 16:12:55,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-08 16:12:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-10-08 16:12:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 236. [2021-10-08 16:12:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 3.411255411255411) internal successors, (788), 235 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 788 transitions. [2021-10-08 16:12:55,665 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 788 transitions. Word has length 8 [2021-10-08 16:12:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:55,666 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 788 transitions. [2021-10-08 16:12:55,666 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) [2021-10-08 16:12:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 788 transitions. [2021-10-08 16:12:55,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:12:55,667 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:55,667 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:55,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:55,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-08 16:12:55,883 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:55,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:55,884 INFO L82 PathProgramCache]: Analyzing trace with hash -963701039, now seen corresponding path program 1 times [2021-10-08 16:12:55,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:55,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807846285] [2021-10-08 16:12:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:55,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:55,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807846285] [2021-10-08 16:12:55,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807846285] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:55,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866899270] [2021-10-08 16:12:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:55,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:55,919 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) [2021-10-08 16:12:55,939 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 [2021-10-08 16:12:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:55,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866899270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:56,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:56,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:12:56,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151807706] [2021-10-08 16:12:56,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:56,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:56,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:56,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:56,014 INFO L87 Difference]: Start difference. First operand 236 states and 788 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2021-10-08 16:12:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:56,035 INFO L93 Difference]: Finished difference Result 346 states and 1144 transitions. [2021-10-08 16:12:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:12:56,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 9 [2021-10-08 16:12:56,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:56,039 INFO L225 Difference]: With dead ends: 346 [2021-10-08 16:12:56,039 INFO L226 Difference]: Without dead ends: 346 [2021-10-08 16:12:56,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-10-08 16:12:56,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 274. [2021-10-08 16:12:56,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 3.650557620817844) internal successors, (982), 273 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 982 transitions. [2021-10-08 16:12:56,051 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 982 transitions. Word has length 9 [2021-10-08 16:12:56,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:56,051 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 982 transitions. [2021-10-08 16:12:56,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2021-10-08 16:12:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 982 transitions. [2021-10-08 16:12:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:12:56,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:56,052 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:56,089 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 [2021-10-08 16:12:56,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-08 16:12:56,267 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:56,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:56,268 INFO L82 PathProgramCache]: Analyzing trace with hash -963701019, now seen corresponding path program 1 times [2021-10-08 16:12:56,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:56,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845198134] [2021-10-08 16:12:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:56,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:56,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845198134] [2021-10-08 16:12:56,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845198134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:56,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566254946] [2021-10-08 16:12:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:56,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:56,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:56,330 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) [2021-10-08 16:12:56,362 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 [2021-10-08 16:12:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566254946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:56,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:56,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-08 16:12:56,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019213757] [2021-10-08 16:12:56,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:12:56,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:56,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:12:56,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:56,450 INFO L87 Difference]: Start difference. First operand 274 states and 982 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2021-10-08 16:12:56,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:56,465 INFO L93 Difference]: Finished difference Result 272 states and 899 transitions. [2021-10-08 16:12:56,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:56,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2021-10-08 16:12:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:56,469 INFO L225 Difference]: With dead ends: 272 [2021-10-08 16:12:56,469 INFO L226 Difference]: Without dead ends: 272 [2021-10-08 16:12:56,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:56,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-08 16:12:56,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 236. [2021-10-08 16:12:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 233 states have (on average 3.5107296137339055) internal successors, (818), 235 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 818 transitions. [2021-10-08 16:12:56,481 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 818 transitions. Word has length 9 [2021-10-08 16:12:56,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:56,481 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 818 transitions. [2021-10-08 16:12:56,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2021-10-08 16:12:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 818 transitions. [2021-10-08 16:12:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:12:56,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:56,482 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:56,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:56,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:56,697 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:56,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:56,697 INFO L82 PathProgramCache]: Analyzing trace with hash 190040487, now seen corresponding path program 2 times [2021-10-08 16:12:56,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:56,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999347428] [2021-10-08 16:12:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:56,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:56,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999347428] [2021-10-08 16:12:56,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999347428] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:56,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435816604] [2021-10-08 16:12:56,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:12:56,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:56,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:56,737 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) [2021-10-08 16:12:56,761 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 [2021-10-08 16:12:56,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:12:56,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:56,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:56,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:12:56,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435816604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:56,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:56,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-08 16:12:56,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706043875] [2021-10-08 16:12:56,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:56,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:56,843 INFO L87 Difference]: Start difference. First operand 236 states and 818 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-08 16:12:56,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:56,851 INFO L93 Difference]: Finished difference Result 198 states and 692 transitions. [2021-10-08 16:12:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:56,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 10 [2021-10-08 16:12:56,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:56,853 INFO L225 Difference]: With dead ends: 198 [2021-10-08 16:12:56,853 INFO L226 Difference]: Without dead ends: 166 [2021-10-08 16:12:56,854 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-08 16:12:56,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 106. [2021-10-08 16:12:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 3.104761904761905) internal successors, (326), 105 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 326 transitions. [2021-10-08 16:12:56,859 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 326 transitions. Word has length 10 [2021-10-08 16:12:56,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:56,859 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 326 transitions. [2021-10-08 16:12:56,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-08 16:12:56,860 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 326 transitions. [2021-10-08 16:12:56,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:12:56,860 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:56,860 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:56,899 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 [2021-10-08 16:12:57,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-08 16:12:57,074 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:57,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:57,075 INFO L82 PathProgramCache]: Analyzing trace with hash 194751013, now seen corresponding path program 1 times [2021-10-08 16:12:57,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:57,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584892411] [2021-10-08 16:12:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:57,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:57,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:57,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584892411] [2021-10-08 16:12:57,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584892411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:57,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:57,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:57,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647627149] [2021-10-08 16:12:57,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:12:57,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:57,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:12:57,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:12:57,139 INFO L87 Difference]: Start difference. First operand 106 states and 326 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:57,157 INFO L93 Difference]: Finished difference Result 80 states and 241 transitions. [2021-10-08 16:12:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:57,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-08 16:12:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:57,158 INFO L225 Difference]: With dead ends: 80 [2021-10-08 16:12:57,158 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 16:12:57,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:57,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 16:12:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 16:12:57,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 16:12:57,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-08 16:12:57,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:57,159 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 16:12:57,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 16:12:57,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 16:12:57,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,167 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 16:12:57,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 16:12:57,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 16:12:57,170 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,170 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,170 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,170 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,170 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,170 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:57,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-08 16:12:57,178 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 16:12:57,178 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 16:12:57,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:12:57 BasicIcfg [2021-10-08 16:12:57,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 16:12:57,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 16:12:57,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 16:12:57,182 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 16:12:57,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:12:43" (3/4) ... [2021-10-08 16:12:57,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 16:12:57,191 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 16:12:57,191 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 16:12:57,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-08 16:12:57,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-08 16:12:57,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 16:12:57,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 16:12:57,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 16:12:57,242 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-max-array.wvr.c-witness.graphml [2021-10-08 16:12:57,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 16:12:57,244 INFO L168 Benchmark]: Toolchain (without parser) took 15960.21 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 126.3 MB in the beginning and 170.3 MB in the end (delta: -44.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,245 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 16:12:57,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.82 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.87 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 113.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,246 INFO L168 Benchmark]: Boogie Preprocessor took 122.36 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 111.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,246 INFO L168 Benchmark]: RCFGBuilder took 953.86 ms. Allocated memory is still 151.0 MB. Free memory was 111.6 MB in the beginning and 128.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,247 INFO L168 Benchmark]: TraceAbstraction took 13804.66 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 127.8 MB in the beginning and 173.4 MB in the end (delta: -45.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,247 INFO L168 Benchmark]: Witness Printer took 60.63 ms. Allocated memory is still 239.1 MB. Free memory was 173.4 MB in the beginning and 170.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:57,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 839.82 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 137.87 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 113.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.36 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 111.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 953.86 ms. Allocated memory is still 151.0 MB. Free memory was 111.6 MB in the beginning and 128.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13804.66 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 127.8 MB in the beginning and 173.4 MB in the end (delta: -45.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * Witness Printer took 60.63 ms. Allocated memory is still 239.1 MB. Free memory was 173.4 MB in the beginning and 170.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8033.0ms, 152 PlacesBefore, 41 PlacesAfterwards, 154 TransitionsBefore, 35 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 7 FixpointIterations, 83 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 160 TotalNumberOfCompositions, 2920 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2525, positive: 2486, positive conditional: 0, positive unconditional: 2486, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1486, positive: 1471, positive conditional: 0, positive unconditional: 1471, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1486, positive: 1471, positive conditional: 0, positive unconditional: 1471, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2525, positive: 1015, positive conditional: 0, positive unconditional: 1015, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 1486, unknown conditional: 0, unknown unconditional: 1486] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 185 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 13625.4ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 20.1ms, AutomataDifference: 576.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8132.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 481 SDtfs, 460 SDslu, 422 SDs, 0 SdLazy, 124 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 138.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=9, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 363.2ms AutomataMinimizationTime, 14 MinimizatonAttempts, 2300 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 138.0ms SsaConstructionTime, 488.2ms SatisfiabilityAnalysisTime, 955.3ms InterpolantComputationTime, 157 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1012 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 24 InterpolantComputations, 11 PerfectInterpolantSequences, 28/46 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 16:12:57,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...