/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 14:54:19,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 14:54:19,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 14:54:20,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 14:54:20,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 14:54:20,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 14:54:20,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 14:54:20,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 14:54:20,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 14:54:20,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 14:54:20,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 14:54:20,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 14:54:20,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 14:54:20,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 14:54:20,160 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 14:54:20,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 14:54:20,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 14:54:20,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 14:54:20,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 14:54:20,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 14:54:20,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 14:54:20,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 14:54:20,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 14:54:20,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 14:54:20,164 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 14:54:20,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 14:54:20,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 14:54:20,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 14:54:20,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 14:54:20,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 14:54:20,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 14:54:20,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 14:54:20,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:54:20,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 14:54:20,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 14:54:20,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 14:54:20,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 14:54:20,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 14:54:20,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 14:54:20,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 14:54:20,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 14:54:20,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 14:54:20,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 14:54:20,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 14:54:20,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 14:54:20,627 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 14:54:20,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-10-07 14:54:20,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/132c106ba/e401e3011e6a47ebab346dbd296ea36e/FLAG3856b2f3b [2021-10-07 14:54:21,355 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 14:54:21,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-10-07 14:54:21,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/132c106ba/e401e3011e6a47ebab346dbd296ea36e/FLAG3856b2f3b [2021-10-07 14:54:21,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/132c106ba/e401e3011e6a47ebab346dbd296ea36e [2021-10-07 14:54:21,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 14:54:21,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 14:54:21,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 14:54:21,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 14:54:21,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 14:54:21,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:21,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e1095d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21, skipping insertion in model container [2021-10-07 14:54:21,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:21,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 14:54:21,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 14:54:21,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2513,2526] [2021-10-07 14:54:21,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:54:21,945 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 14:54:21,971 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2513,2526] [2021-10-07 14:54:21,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:54:21,990 INFO L208 MainTranslator]: Completed translation [2021-10-07 14:54:21,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21 WrapperNode [2021-10-07 14:54:21,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 14:54:21,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 14:54:21,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 14:54:21,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 14:54:22,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 14:54:22,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 14:54:22,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 14:54:22,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 14:54:22,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 14:54:22,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 14:54:22,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 14:54:22,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 14:54:22,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (1/1) ... [2021-10-07 14:54:22,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:54:22,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 14:54:22,115 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) [2021-10-07 14:54:22,131 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 [2021-10-07 14:54:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 14:54:22,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 14:54:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 14:54:22,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 14:54:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 14:54:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 14:54:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 14:54:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 14:54:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 14:54:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 14:54:22,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 14:54:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 14:54:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 14:54:22,189 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 14:54:22,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 14:54:22,709 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-07 14:54:22,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:54:22 BoogieIcfgContainer [2021-10-07 14:54:22,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 14:54:22,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 14:54:22,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 14:54:22,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 14:54:22,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:54:21" (1/3) ... [2021-10-07 14:54:22,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29211eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:54:22, skipping insertion in model container [2021-10-07 14:54:22,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:21" (2/3) ... [2021-10-07 14:54:22,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29211eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:54:22, skipping insertion in model container [2021-10-07 14:54:22,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:54:22" (3/3) ... [2021-10-07 14:54:22,724 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2021-10-07 14:54:22,730 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 14:54:22,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 14:54:22,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-07 14:54:22,731 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 14:54:22,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,788 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:22,802 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-07 14:54:22,855 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 14:54:22,864 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 [2021-10-07 14:54:22,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-10-07 14:54:22,884 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 14:54:22,923 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 136 transitions, 288 flow [2021-10-07 14:54:22,927 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 136 transitions, 288 flow [2021-10-07 14:54:22,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 136 transitions, 288 flow [2021-10-07 14:54:23,017 INFO L129 PetriNetUnfolder]: 10/134 cut-off events. [2021-10-07 14:54:23,018 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-07 14:54:23,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 134 events. 10/134 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2021-10-07 14:54:23,033 INFO L116 LiptonReduction]: Number of co-enabled transitions 1110 [2021-10-07 14:54:28,726 INFO L131 LiptonReduction]: Checked pairs total: 4194 [2021-10-07 14:54:28,726 INFO L133 LiptonReduction]: Total number of compositions: 151 [2021-10-07 14:54:28,737 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 76 flow [2021-10-07 14:54:28,762 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 188 states, 172 states have (on average 2.5348837209302326) internal successors, (436), 187 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:28,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 172 states have (on average 2.5348837209302326) internal successors, (436), 187 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:28,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 14:54:28,772 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:28,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 14:54:28,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:28,779 INFO L82 PathProgramCache]: Analyzing trace with hash 544370, now seen corresponding path program 1 times [2021-10-07 14:54:28,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:28,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226857505] [2021-10-07 14:54:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:28,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:29,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:29,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226857505] [2021-10-07 14:54:29,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226857505] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:29,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:29,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 14:54:29,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229118342] [2021-10-07 14:54:29,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 14:54:29,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:29,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 14:54:29,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:54:29,089 INFO L87 Difference]: Start difference. First operand has 188 states, 172 states have (on average 2.5348837209302326) internal successors, (436), 187 states have internal predecessors, (436), 0 states have call successors, (0), 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 1.5) 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) [2021-10-07 14:54:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,144 INFO L93 Difference]: Finished difference Result 216 states and 457 transitions. [2021-10-07 14:54:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 14:54:29,146 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 3 [2021-10-07 14:54:29,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,160 INFO L225 Difference]: With dead ends: 216 [2021-10-07 14:54:29,161 INFO L226 Difference]: Without dead ends: 198 [2021-10-07 14:54:29,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:54:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-07 14:54:29,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 166. [2021-10-07 14:54:29,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 152 states have (on average 2.414473684210526) internal successors, (367), 165 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 367 transitions. [2021-10-07 14:54:29,219 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 367 transitions. Word has length 3 [2021-10-07 14:54:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:29,221 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 367 transitions. [2021-10-07 14:54:29,221 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) [2021-10-07 14:54:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 367 transitions. [2021-10-07 14:54:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 14:54:29,222 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:29,222 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 14:54:29,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 14:54:29,223 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash 544228, now seen corresponding path program 1 times [2021-10-07 14:54:29,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:29,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174769320] [2021-10-07 14:54:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:29,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:29,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:29,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174769320] [2021-10-07 14:54:29,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174769320] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:29,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:29,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 14:54:29,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962801801] [2021-10-07 14:54:29,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 14:54:29,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:29,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 14:54:29,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:54:29,276 INFO L87 Difference]: Start difference. First operand 166 states and 367 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) [2021-10-07 14:54:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,308 INFO L93 Difference]: Finished difference Result 130 states and 279 transitions. [2021-10-07 14:54:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 14:54:29,308 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 3 [2021-10-07 14:54:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,310 INFO L225 Difference]: With dead ends: 130 [2021-10-07 14:54:29,311 INFO L226 Difference]: Without dead ends: 130 [2021-10-07 14:54:29,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:54:29,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-07 14:54:29,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-07 14:54:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 122 states have (on average 2.2868852459016393) internal successors, (279), 129 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 279 transitions. [2021-10-07 14:54:29,325 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 279 transitions. Word has length 3 [2021-10-07 14:54:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:29,325 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 279 transitions. [2021-10-07 14:54:29,325 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) [2021-10-07 14:54:29,325 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 279 transitions. [2021-10-07 14:54:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 14:54:29,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:29,326 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 14:54:29,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-07 14:54:29,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:29,327 INFO L82 PathProgramCache]: Analyzing trace with hash 16871562, now seen corresponding path program 1 times [2021-10-07 14:54:29,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:29,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758492471] [2021-10-07 14:54:29,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:29,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:29,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:29,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758492471] [2021-10-07 14:54:29,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758492471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:29,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:29,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 14:54:29,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729524774] [2021-10-07 14:54:29,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 14:54:29,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 14:54:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:29,407 INFO L87 Difference]: Start difference. First operand 130 states and 279 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,474 INFO L93 Difference]: Finished difference Result 140 states and 292 transitions. [2021-10-07 14:54:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 14:54:29,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-07 14:54:29,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,477 INFO L225 Difference]: With dead ends: 140 [2021-10-07 14:54:29,477 INFO L226 Difference]: Without dead ends: 140 [2021-10-07 14:54:29,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:29,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-07 14:54:29,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2021-10-07 14:54:29,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 126 states have (on average 2.2698412698412698) internal successors, (286), 133 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 286 transitions. [2021-10-07 14:54:29,490 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 286 transitions. Word has length 4 [2021-10-07 14:54:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:29,490 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 286 transitions. [2021-10-07 14:54:29,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,491 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 286 transitions. [2021-10-07 14:54:29,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 14:54:29,492 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:29,492 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:29,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-07 14:54:29,492 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:29,493 INFO L82 PathProgramCache]: Analyzing trace with hash 251144077, now seen corresponding path program 1 times [2021-10-07 14:54:29,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:29,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785045720] [2021-10-07 14:54:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:29,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:29,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:29,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785045720] [2021-10-07 14:54:29,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785045720] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:29,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:29,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 14:54:29,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899909735] [2021-10-07 14:54:29,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 14:54:29,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 14:54:29,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:29,616 INFO L87 Difference]: Start difference. First operand 134 states and 286 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-07 14:54:29,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,658 INFO L93 Difference]: Finished difference Result 128 states and 264 transitions. [2021-10-07 14:54:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 14:54:29,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2021-10-07 14:54:29,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,661 INFO L225 Difference]: With dead ends: 128 [2021-10-07 14:54:29,661 INFO L226 Difference]: Without dead ends: 128 [2021-10-07 14:54:29,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:29,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-07 14:54:29,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-10-07 14:54:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 110 states have (on average 2.209090909090909) internal successors, (243), 115 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 243 transitions. [2021-10-07 14:54:29,670 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 243 transitions. Word has length 7 [2021-10-07 14:54:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:29,670 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 243 transitions. [2021-10-07 14:54:29,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-07 14:54:29,671 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 243 transitions. [2021-10-07 14:54:29,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 14:54:29,671 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:29,671 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:29,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-07 14:54:29,672 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:29,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash 251144075, now seen corresponding path program 1 times [2021-10-07 14:54:29,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:29,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313961042] [2021-10-07 14:54:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:29,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:29,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:29,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313961042] [2021-10-07 14:54:29,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313961042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:29,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:29,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 14:54:29,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350920955] [2021-10-07 14:54:29,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 14:54:29,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:29,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 14:54:29,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:29,725 INFO L87 Difference]: Start difference. First operand 116 states and 243 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-07 14:54:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,762 INFO L93 Difference]: Finished difference Result 118 states and 239 transitions. [2021-10-07 14:54:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 14:54:29,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2021-10-07 14:54:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,764 INFO L225 Difference]: With dead ends: 118 [2021-10-07 14:54:29,764 INFO L226 Difference]: Without dead ends: 118 [2021-10-07 14:54:29,764 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-07 14:54:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-07 14:54:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 112 states have (on average 2.1339285714285716) internal successors, (239), 117 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 239 transitions. [2021-10-07 14:54:29,772 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 239 transitions. Word has length 7 [2021-10-07 14:54:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:29,772 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 239 transitions. [2021-10-07 14:54:29,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-07 14:54:29,773 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 239 transitions. [2021-10-07 14:54:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 14:54:29,774 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:29,774 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:29,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-07 14:54:29,774 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:29,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:29,775 INFO L82 PathProgramCache]: Analyzing trace with hash -804453873, now seen corresponding path program 1 times [2021-10-07 14:54:29,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:29,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401259861] [2021-10-07 14:54:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:29,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:29,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:29,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401259861] [2021-10-07 14:54:29,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401259861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:29,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:29,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:29,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402110455] [2021-10-07 14:54:29,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:54:29,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:29,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:54:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:29,823 INFO L87 Difference]: Start difference. First operand 118 states and 239 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-07 14:54:29,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,893 INFO L93 Difference]: Finished difference Result 116 states and 232 transitions. [2021-10-07 14:54:29,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 14:54:29,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2021-10-07 14:54:29,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,899 INFO L225 Difference]: With dead ends: 116 [2021-10-07 14:54:29,899 INFO L226 Difference]: Without dead ends: 116 [2021-10-07 14:54:29,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:54:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-07 14:54:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 102. [2021-10-07 14:54:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 98 states have (on average 2.0714285714285716) internal successors, (203), 101 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:29,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 203 transitions. [2021-10-07 14:54:29,913 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 203 transitions. Word has length 8 [2021-10-07 14:54:29,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:29,914 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 203 transitions. [2021-10-07 14:54:29,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-07 14:54:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 203 transitions. [2021-10-07 14:54:29,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 14:54:29,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:29,916 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:29,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-07 14:54:29,917 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:29,919 INFO L82 PathProgramCache]: Analyzing trace with hash -804454014, now seen corresponding path program 1 times [2021-10-07 14:54:29,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:29,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495595687] [2021-10-07 14:54:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:29,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:30,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:30,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495595687] [2021-10-07 14:54:30,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495595687] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:30,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:30,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:30,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388588626] [2021-10-07 14:54:30,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:54:30,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:30,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:54:30,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:30,006 INFO L87 Difference]: Start difference. First operand 102 states and 203 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-07 14:54:30,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:30,061 INFO L93 Difference]: Finished difference Result 108 states and 195 transitions. [2021-10-07 14:54:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 14:54:30,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2021-10-07 14:54:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:30,062 INFO L225 Difference]: With dead ends: 108 [2021-10-07 14:54:30,062 INFO L226 Difference]: Without dead ends: 72 [2021-10-07 14:54:30,065 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:54:30,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-07 14:54:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-10-07 14:54:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 67 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:30,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 124 transitions. [2021-10-07 14:54:30,078 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 124 transitions. Word has length 8 [2021-10-07 14:54:30,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:30,079 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 124 transitions. [2021-10-07 14:54:30,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-07 14:54:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 124 transitions. [2021-10-07 14:54:30,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 14:54:30,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:30,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:30,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-07 14:54:30,083 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:30,084 INFO L82 PathProgramCache]: Analyzing trace with hash 831223885, now seen corresponding path program 1 times [2021-10-07 14:54:30,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:30,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701167161] [2021-10-07 14:54:30,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:30,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:30,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:30,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701167161] [2021-10-07 14:54:30,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701167161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:30,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:30,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:54:30,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045816526] [2021-10-07 14:54:30,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:54:30,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:54:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:54:30,199 INFO L87 Difference]: Start difference. First operand 68 states and 124 transitions. Second operand has 6 states, 5 states have (on average 1.8) 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) [2021-10-07 14:54:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:30,241 INFO L93 Difference]: Finished difference Result 64 states and 109 transitions. [2021-10-07 14:54:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 14:54:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) 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 9 [2021-10-07 14:54:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:30,243 INFO L225 Difference]: With dead ends: 64 [2021-10-07 14:54:30,243 INFO L226 Difference]: Without dead ends: 54 [2021-10-07 14:54:30,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:54:30,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-07 14:54:30,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-10-07 14:54:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 49 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 91 transitions. [2021-10-07 14:54:30,246 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 91 transitions. Word has length 9 [2021-10-07 14:54:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:30,246 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 91 transitions. [2021-10-07 14:54:30,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) 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) [2021-10-07 14:54:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 91 transitions. [2021-10-07 14:54:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 14:54:30,247 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:30,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:30,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-07 14:54:30,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:30,249 INFO L82 PathProgramCache]: Analyzing trace with hash 831270319, now seen corresponding path program 1 times [2021-10-07 14:54:30,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:30,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367281589] [2021-10-07 14:54:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:30,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:30,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:30,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367281589] [2021-10-07 14:54:30,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367281589] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:30,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:30,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:54:30,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64587075] [2021-10-07 14:54:30,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:54:30,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:54:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:54:30,307 INFO L87 Difference]: Start difference. First operand 50 states and 91 transitions. Second operand has 6 states, 5 states have (on average 1.8) 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) [2021-10-07 14:54:30,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:30,344 INFO L93 Difference]: Finished difference Result 42 states and 74 transitions. [2021-10-07 14:54:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 14:54:30,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) 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 9 [2021-10-07 14:54:30,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:30,345 INFO L225 Difference]: With dead ends: 42 [2021-10-07 14:54:30,346 INFO L226 Difference]: Without dead ends: 42 [2021-10-07 14:54:30,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:54:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-07 14:54:30,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-07 14:54:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 41 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:30,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 74 transitions. [2021-10-07 14:54:30,348 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 74 transitions. Word has length 9 [2021-10-07 14:54:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:30,349 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 74 transitions. [2021-10-07 14:54:30,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) 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) [2021-10-07 14:54:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 74 transitions. [2021-10-07 14:54:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 14:54:30,350 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:30,350 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:30,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-07 14:54:30,350 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-07 14:54:30,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:30,351 INFO L82 PathProgramCache]: Analyzing trace with hash 831270290, now seen corresponding path program 1 times [2021-10-07 14:54:30,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:30,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830754855] [2021-10-07 14:54:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:30,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:30,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:30,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830754855] [2021-10-07 14:54:30,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830754855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:30,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:30,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:30,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359603137] [2021-10-07 14:54:30,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 14:54:30,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:30,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 14:54:30,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:30,385 INFO L87 Difference]: Start difference. First operand 42 states and 74 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) [2021-10-07 14:54:30,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:30,399 INFO L93 Difference]: Finished difference Result 36 states and 62 transitions. [2021-10-07 14:54:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 14:54:30,401 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 [2021-10-07 14:54:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:30,401 INFO L225 Difference]: With dead ends: 36 [2021-10-07 14:54:30,401 INFO L226 Difference]: Without dead ends: 0 [2021-10-07 14:54:30,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:30,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-07 14:54:30,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-07 14:54:30,402 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) [2021-10-07 14:54:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-07 14:54:30,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-07 14:54:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:30,403 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-07 14:54:30,403 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) [2021-10-07 14:54:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-07 14:54:30,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-07 14:54:30,407 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 14:54:30,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 14:54:30,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,411 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,411 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 14:54:30,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-07 14:54:30,418 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 14:54:30,418 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 14:54:30,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 02:54:30 BasicIcfg [2021-10-07 14:54:30,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 14:54:30,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 14:54:30,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 14:54:30,422 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 14:54:30,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:54:22" (3/4) ... [2021-10-07 14:54:30,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-07 14:54:30,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-07 14:54:30,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-07 14:54:30,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-07 14:54:30,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-07 14:54:30,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-07 14:54:30,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-07 14:54:30,487 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel-bluetooth.wvr.c-witness.graphml [2021-10-07 14:54:30,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 14:54:30,489 INFO L168 Benchmark]: Toolchain (without parser) took 8768.22 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 134.4 MB in the beginning and 81.5 MB in the end (delta: 52.9 MB). Peak memory consumption was 86.2 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,490 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 160.4 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 14:54:30,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.06 ms. Allocated memory is still 160.4 MB. Free memory was 134.1 MB in the beginning and 124.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.11 ms. Allocated memory is still 160.4 MB. Free memory was 124.0 MB in the beginning and 122.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,491 INFO L168 Benchmark]: Boogie Preprocessor took 30.91 ms. Allocated memory is still 160.4 MB. Free memory was 122.0 MB in the beginning and 121.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,492 INFO L168 Benchmark]: RCFGBuilder took 639.62 ms. Allocated memory is still 160.4 MB. Free memory was 120.8 MB in the beginning and 105.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,493 INFO L168 Benchmark]: TraceAbstraction took 7706.92 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 104.8 MB in the beginning and 84.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,493 INFO L168 Benchmark]: Witness Printer took 66.30 ms. Allocated memory is still 192.9 MB. Free memory was 84.6 MB in the beginning and 81.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-07 14:54:30,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 160.4 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 262.06 ms. Allocated memory is still 160.4 MB. Free memory was 134.1 MB in the beginning and 124.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.11 ms. Allocated memory is still 160.4 MB. Free memory was 124.0 MB in the beginning and 122.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.91 ms. Allocated memory is still 160.4 MB. Free memory was 122.0 MB in the beginning and 121.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 639.62 ms. Allocated memory is still 160.4 MB. Free memory was 120.8 MB in the beginning and 105.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7706.92 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 104.8 MB in the beginning and 84.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. * Witness Printer took 66.30 ms. Allocated memory is still 192.9 MB. Free memory was 84.6 MB in the beginning and 81.5 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: 5799.7ms, 133 PlacesBefore, 35 PlacesAfterwards, 136 TransitionsBefore, 30 TransitionsAfterwards, 1110 CoEnabledTransitionPairs, 8 FixpointIterations, 74 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 151 TotalNumberOfCompositions, 4194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2605, positive: 2392, positive conditional: 0, positive unconditional: 2392, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 905, positive: 867, positive conditional: 0, positive unconditional: 867, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 905, positive: 834, positive conditional: 0, positive unconditional: 834, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2605, positive: 1525, positive conditional: 0, positive unconditional: 1525, negative: 175, negative conditional: 0, negative unconditional: 175, unknown: 905, unknown conditional: 0, unknown unconditional: 905] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: 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 5 procedures, 163 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 7562.4ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 17.8ms, AutomataDifference: 554.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5898.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 225 SDtfs, 187 SDslu, 247 SDs, 0 SdLazy, 273 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 260.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 112.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 107.9ms AutomataMinimizationTime, 10 MinimizatonAttempts, 72 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.8ms SsaConstructionTime, 215.6ms SatisfiabilityAnalysisTime, 485.1ms InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-07 14:54:30,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...