/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 [2021-10-06 16:18:27,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:18:27,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:18:27,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-06 16:18:27,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-06 16:18:27,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-06 16:18:27,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-06 16:18:27,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-06 16:18:27,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-06 16:18:27,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-06 16:18:27,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-06 16:18:27,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-06 16:18:27,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 16:18:27,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 16:18:27,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 16:18:27,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 16:18:27,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 16:18:27,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 16:18:27,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 16:18:27,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 16:18:27,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 16:18:27,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 16:18:27,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 16:18:27,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 16:18:27,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-06 16:18:27,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 16:18:27,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 16:18:27,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 16:18:27,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-06 16:18:27,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:18:27,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:18:27,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:18:27,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:18:27,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:18:27,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:18:27,401 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:18:27,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:18:27,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:18:27,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 16:18:27,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:18:27,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:18:27,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:18:27,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:18:27,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:18:27,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:18:27,403 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-06 16:18:27,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:18:27,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:18:27,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:18:27,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:18:27,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:18:27,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:18:27,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:18:27,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:18:27,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:18:27,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:18:27,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:18:27,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:18:27,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:18:27,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:18:27,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 16:18:27,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:18:27,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:18:27,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:18:27,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:18:27,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:18:27,869 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:18:27,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-06 16:18:27,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0da75856f/bf0b4d68eb9043c29155ff1a83b51b1f/FLAGbb9337dae [2021-10-06 16:18:28,545 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:18:28,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-06 16:18:28,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0da75856f/bf0b4d68eb9043c29155ff1a83b51b1f/FLAGbb9337dae [2021-10-06 16:18:28,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0da75856f/bf0b4d68eb9043c29155ff1a83b51b1f [2021-10-06 16:18:28,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:18:28,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:18:28,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:18:28,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:18:28,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:18:28,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:18:28" (1/1) ... [2021-10-06 16:18:28,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e84e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:28, skipping insertion in model container [2021-10-06 16:18:28,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:18:28" (1/1) ... [2021-10-06 16:18:28,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:18:28,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:18:29,151 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[2494,2507] [2021-10-06 16:18:29,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:18:29,172 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:18:29,224 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[2494,2507] [2021-10-06 16:18:29,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:18:29,256 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:18:29,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29 WrapperNode [2021-10-06 16:18:29,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:18:29,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:18:29,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:18:29,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:18:29,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:18:29,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:18:29,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:18:29,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:18:29,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:18:29,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:18:29,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:18:29,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:18:29,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (1/1) ... [2021-10-06 16:18:29,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:18:29,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:18:29,443 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) [2021-10-06 16:18:29,469 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 [2021-10-06 16:18:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:18:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:18:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:18:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:18:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:18:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:18:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:18:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 16:18:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 16:18:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:18:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:18:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:18:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:18:29,530 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 16:18:30,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:18:30,029 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-06 16:18:30,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:30 BoogieIcfgContainer [2021-10-06 16:18:30,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:18:30,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:18:30,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:18:30,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:18:30,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:18:28" (1/3) ... [2021-10-06 16:18:30,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ba5347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:18:30, skipping insertion in model container [2021-10-06 16:18:30,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:18:29" (2/3) ... [2021-10-06 16:18:30,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ba5347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:18:30, skipping insertion in model container [2021-10-06 16:18:30,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:30" (3/3) ... [2021-10-06 16:18:30,060 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.c [2021-10-06 16:18:30,065 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:18:30,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:18:30,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-06 16:18:30,066 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:18:30,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,099 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,099 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,103 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,103 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,103 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,104 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,104 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,116 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,116 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,116 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,117 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,117 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,117 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,117 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,118 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,118 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,118 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,118 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,119 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,119 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,119 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,119 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,120 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,120 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,120 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,120 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,120 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,121 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,121 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,121 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,121 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,122 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,122 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,122 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,125 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,128 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,129 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,129 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,129 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,129 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:18:30,135 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 16:18:30,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 16:18:30,196 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 [2021-10-06 16:18:30,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-10-06 16:18:30,214 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 16:18:30,227 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 133 transitions, 282 flow [2021-10-06 16:18:30,230 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 133 transitions, 282 flow [2021-10-06 16:18:30,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 133 transitions, 282 flow [2021-10-06 16:18:30,298 INFO L129 PetriNetUnfolder]: 10/131 cut-off events. [2021-10-06 16:18:30,298 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 16:18:30,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 131 events. 10/131 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2021-10-06 16:18:30,307 INFO L116 LiptonReduction]: Number of co-enabled transitions 1110 [2021-10-06 16:18:35,540 INFO L131 LiptonReduction]: Checked pairs total: 4602 [2021-10-06 16:18:35,540 INFO L133 LiptonReduction]: Total number of compositions: 137 [2021-10-06 16:18:35,550 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 76 flow [2021-10-06 16:18:35,574 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 180 states, 165 states have (on average 2.515151515151515) internal successors, (415), 179 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 165 states have (on average 2.515151515151515) internal successors, (415), 179 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:35,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 16:18:35,583 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:35,584 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 16:18:35,584 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:35,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:35,590 INFO L82 PathProgramCache]: Analyzing trace with hash 523793, now seen corresponding path program 1 times [2021-10-06 16:18:35,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:35,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298167607] [2021-10-06 16:18:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:35,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:35,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:35,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298167607] [2021-10-06 16:18:35,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298167607] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:35,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:35,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-06 16:18:35,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764127558] [2021-10-06 16:18:35,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 16:18:35,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:35,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 16:18:35,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 16:18:35,814 INFO L87 Difference]: Start difference. First operand has 180 states, 165 states have (on average 2.515151515151515) internal successors, (415), 179 states have internal predecessors, (415), 0 states have call successors, (0), 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) [2021-10-06 16:18:35,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:35,887 INFO L93 Difference]: Finished difference Result 152 states and 333 transitions. [2021-10-06 16:18:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 16:18:35,890 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 [2021-10-06 16:18:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:35,909 INFO L225 Difference]: With dead ends: 152 [2021-10-06 16:18:35,909 INFO L226 Difference]: Without dead ends: 142 [2021-10-06 16:18:35,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 16:18:35,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-06 16:18:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-10-06 16:18:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 132 states have (on average 2.3333333333333335) internal successors, (308), 141 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 308 transitions. [2021-10-06 16:18:35,979 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 308 transitions. Word has length 3 [2021-10-06 16:18:35,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:35,979 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 308 transitions. [2021-10-06 16:18:35,979 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) [2021-10-06 16:18:35,979 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 308 transitions. [2021-10-06 16:18:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-06 16:18:35,980 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:35,980 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-06 16:18:35,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:18:35,981 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:35,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:35,981 INFO L82 PathProgramCache]: Analyzing trace with hash 16238049, now seen corresponding path program 1 times [2021-10-06 16:18:35,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:35,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111264553] [2021-10-06 16:18:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:35,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111264553] [2021-10-06 16:18:36,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111264553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-06 16:18:36,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394594725] [2021-10-06 16:18:36,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 16:18:36,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 16:18:36,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,089 INFO L87 Difference]: Start difference. First operand 142 states and 308 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) [2021-10-06 16:18:36,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,152 INFO L93 Difference]: Finished difference Result 172 states and 349 transitions. [2021-10-06 16:18:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 16:18:36,153 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 [2021-10-06 16:18:36,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,155 INFO L225 Difference]: With dead ends: 172 [2021-10-06 16:18:36,155 INFO L226 Difference]: Without dead ends: 172 [2021-10-06 16:18:36,156 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-06 16:18:36,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 154. [2021-10-06 16:18:36,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 144 states have (on average 2.2777777777777777) internal successors, (328), 153 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 328 transitions. [2021-10-06 16:18:36,170 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 328 transitions. Word has length 4 [2021-10-06 16:18:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,171 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 328 transitions. [2021-10-06 16:18:36,171 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) [2021-10-06 16:18:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 328 transitions. [2021-10-06 16:18:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-06 16:18:36,171 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-06 16:18:36,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-06 16:18:36,172 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,173 INFO L82 PathProgramCache]: Analyzing trace with hash 16238100, now seen corresponding path program 1 times [2021-10-06 16:18:36,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552427496] [2021-10-06 16:18:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552427496] [2021-10-06 16:18:36,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552427496] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-06 16:18:36,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214183833] [2021-10-06 16:18:36,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 16:18:36,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 16:18:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,241 INFO L87 Difference]: Start difference. First operand 154 states and 328 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) [2021-10-06 16:18:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,303 INFO L93 Difference]: Finished difference Result 160 states and 321 transitions. [2021-10-06 16:18:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 16:18:36,304 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 [2021-10-06 16:18:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,305 INFO L225 Difference]: With dead ends: 160 [2021-10-06 16:18:36,306 INFO L226 Difference]: Without dead ends: 160 [2021-10-06 16:18:36,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-06 16:18:36,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 148. [2021-10-06 16:18:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 140 states have (on average 2.2) internal successors, (308), 147 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 308 transitions. [2021-10-06 16:18:36,317 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 308 transitions. Word has length 4 [2021-10-06 16:18:36,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,318 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 308 transitions. [2021-10-06 16:18:36,318 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) [2021-10-06 16:18:36,318 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 308 transitions. [2021-10-06 16:18:36,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-06 16:18:36,319 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,319 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:36,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-06 16:18:36,320 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1454192812, now seen corresponding path program 1 times [2021-10-06 16:18:36,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699154686] [2021-10-06 16:18:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699154686] [2021-10-06 16:18:36,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699154686] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-06 16:18:36,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809836026] [2021-10-06 16:18:36,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 16:18:36,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 16:18:36,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,392 INFO L87 Difference]: Start difference. First operand 148 states and 308 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) [2021-10-06 16:18:36,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,429 INFO L93 Difference]: Finished difference Result 148 states and 293 transitions. [2021-10-06 16:18:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 16:18:36,430 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 [2021-10-06 16:18:36,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,431 INFO L225 Difference]: With dead ends: 148 [2021-10-06 16:18:36,432 INFO L226 Difference]: Without dead ends: 148 [2021-10-06 16:18:36,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-06 16:18:36,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 134. [2021-10-06 16:18:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 127 states have (on average 2.1653543307086616) internal successors, (275), 133 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 275 transitions. [2021-10-06 16:18:36,441 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 275 transitions. Word has length 7 [2021-10-06 16:18:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,442 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 275 transitions. [2021-10-06 16:18:36,442 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) [2021-10-06 16:18:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 275 transitions. [2021-10-06 16:18:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-06 16:18:36,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,443 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:36,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-06 16:18:36,444 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1454192761, now seen corresponding path program 1 times [2021-10-06 16:18:36,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966874052] [2021-10-06 16:18:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966874052] [2021-10-06 16:18:36,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966874052] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-06 16:18:36,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726001761] [2021-10-06 16:18:36,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 16:18:36,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 16:18:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,506 INFO L87 Difference]: Start difference. First operand 134 states and 275 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) [2021-10-06 16:18:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,536 INFO L93 Difference]: Finished difference Result 124 states and 250 transitions. [2021-10-06 16:18:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 16:18:36,537 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 [2021-10-06 16:18:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,538 INFO L225 Difference]: With dead ends: 124 [2021-10-06 16:18:36,539 INFO L226 Difference]: Without dead ends: 124 [2021-10-06 16:18:36,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 16:18:36,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-06 16:18:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 118. [2021-10-06 16:18:36,544 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) [2021-10-06 16:18:36,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 239 transitions. [2021-10-06 16:18:36,545 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 239 transitions. Word has length 7 [2021-10-06 16:18:36,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,546 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 239 transitions. [2021-10-06 16:18:36,546 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) [2021-10-06 16:18:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 239 transitions. [2021-10-06 16:18:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-06 16:18:36,547 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,547 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:36,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-06 16:18:36,548 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,548 INFO L82 PathProgramCache]: Analyzing trace with hash -2130199167, now seen corresponding path program 1 times [2021-10-06 16:18:36,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091908984] [2021-10-06 16:18:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091908984] [2021-10-06 16:18:36,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091908984] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-06 16:18:36,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291859357] [2021-10-06 16:18:36,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-06 16:18:36,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-06 16:18:36,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-06 16:18:36,610 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) [2021-10-06 16:18:36,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,684 INFO L93 Difference]: Finished difference Result 120 states and 242 transitions. [2021-10-06 16:18:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 16:18:36,684 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 [2021-10-06 16:18:36,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,685 INFO L225 Difference]: With dead ends: 120 [2021-10-06 16:18:36,686 INFO L226 Difference]: Without dead ends: 120 [2021-10-06 16:18:36,686 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:36,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-06 16:18:36,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-10-06 16:18:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 115 states have (on average 2.1043478260869564) internal successors, (242), 119 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 242 transitions. [2021-10-06 16:18:36,693 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 242 transitions. Word has length 8 [2021-10-06 16:18:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,693 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 242 transitions. [2021-10-06 16:18:36,694 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) [2021-10-06 16:18:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 242 transitions. [2021-10-06 16:18:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-06 16:18:36,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:36,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-06 16:18:36,697 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2130199166, now seen corresponding path program 1 times [2021-10-06 16:18:36,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108361680] [2021-10-06 16:18:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108361680] [2021-10-06 16:18:36,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108361680] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-06 16:18:36,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785342650] [2021-10-06 16:18:36,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-06 16:18:36,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-06 16:18:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-06 16:18:36,788 INFO L87 Difference]: Start difference. First operand 120 states and 242 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) [2021-10-06 16:18:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,832 INFO L93 Difference]: Finished difference Result 124 states and 231 transitions. [2021-10-06 16:18:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 16:18:36,832 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 [2021-10-06 16:18:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,834 INFO L225 Difference]: With dead ends: 124 [2021-10-06 16:18:36,834 INFO L226 Difference]: Without dead ends: 98 [2021-10-06 16:18:36,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-06 16:18:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-06 16:18:36,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2021-10-06 16:18:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 2.033333333333333) internal successors, (183), 93 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:36,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 183 transitions. [2021-10-06 16:18:36,838 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 183 transitions. Word has length 8 [2021-10-06 16:18:36,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,839 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 183 transitions. [2021-10-06 16:18:36,839 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) [2021-10-06 16:18:36,839 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 183 transitions. [2021-10-06 16:18:36,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-06 16:18:36,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,840 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:36,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-06 16:18:36,841 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1708833075, now seen corresponding path program 1 times [2021-10-06 16:18:36,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048876131] [2021-10-06 16:18:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:36,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:36,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048876131] [2021-10-06 16:18:36,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048876131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:36,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:36,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-06 16:18:36,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883087175] [2021-10-06 16:18:36,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 16:18:36,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:36,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 16:18:36,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:36,933 INFO L87 Difference]: Start difference. First operand 94 states and 183 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) [2021-10-06 16:18:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:36,982 INFO L93 Difference]: Finished difference Result 88 states and 171 transitions. [2021-10-06 16:18:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-06 16:18:36,983 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 [2021-10-06 16:18:36,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:36,984 INFO L225 Difference]: With dead ends: 88 [2021-10-06 16:18:36,984 INFO L226 Difference]: Without dead ends: 88 [2021-10-06 16:18:36,985 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-06 16:18:36,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-06 16:18:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-10-06 16:18:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 2.011764705882353) internal successors, (171), 87 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 171 transitions. [2021-10-06 16:18:36,988 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 171 transitions. Word has length 9 [2021-10-06 16:18:36,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:36,989 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 171 transitions. [2021-10-06 16:18:36,989 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) [2021-10-06 16:18:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 171 transitions. [2021-10-06 16:18:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-06 16:18:36,990 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:36,990 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:36,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-06 16:18:36,991 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:36,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1708833126, now seen corresponding path program 1 times [2021-10-06 16:18:36,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:36,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481926126] [2021-10-06 16:18:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:36,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:37,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:37,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481926126] [2021-10-06 16:18:37,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481926126] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:37,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:37,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-06 16:18:37,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777200825] [2021-10-06 16:18:37,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 16:18:37,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 16:18:37,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:37,049 INFO L87 Difference]: Start difference. First operand 88 states and 171 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) [2021-10-06 16:18:37,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:37,104 INFO L93 Difference]: Finished difference Result 100 states and 188 transitions. [2021-10-06 16:18:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-06 16:18:37,105 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 [2021-10-06 16:18:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:37,106 INFO L225 Difference]: With dead ends: 100 [2021-10-06 16:18:37,106 INFO L226 Difference]: Without dead ends: 78 [2021-10-06 16:18:37,106 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-06 16:18:37,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-06 16:18:37,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2021-10-06 16:18:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 73 states have (on average 1.9589041095890412) internal successors, (143), 75 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:37,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 143 transitions. [2021-10-06 16:18:37,110 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 143 transitions. Word has length 9 [2021-10-06 16:18:37,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:37,110 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 143 transitions. [2021-10-06 16:18:37,110 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) [2021-10-06 16:18:37,110 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 143 transitions. [2021-10-06 16:18:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-06 16:18:37,111 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:37,111 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:37,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-06 16:18:37,112 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:37,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:37,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1671070565, now seen corresponding path program 1 times [2021-10-06 16:18:37,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:37,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400413816] [2021-10-06 16:18:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:37,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:37,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:37,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400413816] [2021-10-06 16:18:37,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400413816] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:37,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:37,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-06 16:18:37,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981652864] [2021-10-06 16:18:37,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 16:18:37,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 16:18:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:37,165 INFO L87 Difference]: Start difference. First operand 76 states and 143 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) [2021-10-06 16:18:37,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:37,212 INFO L93 Difference]: Finished difference Result 68 states and 117 transitions. [2021-10-06 16:18:37,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-06 16:18:37,212 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 [2021-10-06 16:18:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:37,213 INFO L225 Difference]: With dead ends: 68 [2021-10-06 16:18:37,213 INFO L226 Difference]: Without dead ends: 50 [2021-10-06 16:18:37,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-06 16:18:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-06 16:18:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-06 16:18:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.75) internal successors, (84), 49 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 84 transitions. [2021-10-06 16:18:37,216 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 84 transitions. Word has length 9 [2021-10-06 16:18:37,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:37,216 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 84 transitions. [2021-10-06 16:18:37,216 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) [2021-10-06 16:18:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 84 transitions. [2021-10-06 16:18:37,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-06 16:18:37,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:37,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:37,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-06 16:18:37,218 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:37,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1671070616, now seen corresponding path program 1 times [2021-10-06 16:18:37,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:37,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702825391] [2021-10-06 16:18:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:37,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:37,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:37,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702825391] [2021-10-06 16:18:37,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702825391] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:37,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:37,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-06 16:18:37,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196765541] [2021-10-06 16:18:37,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 16:18:37,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 16:18:37,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:37,269 INFO L87 Difference]: Start difference. First operand 50 states and 84 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) [2021-10-06 16:18:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:37,306 INFO L93 Difference]: Finished difference Result 60 states and 97 transitions. [2021-10-06 16:18:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 16:18:37,307 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 [2021-10-06 16:18:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:37,307 INFO L225 Difference]: With dead ends: 60 [2021-10-06 16:18:37,307 INFO L226 Difference]: Without dead ends: 44 [2021-10-06 16:18:37,308 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-06 16:18:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-06 16:18:37,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-06 16:18:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 43 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:37,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 72 transitions. [2021-10-06 16:18:37,310 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 72 transitions. Word has length 9 [2021-10-06 16:18:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:37,310 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 72 transitions. [2021-10-06 16:18:37,310 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) [2021-10-06 16:18:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 72 transitions. [2021-10-06 16:18:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-06 16:18:37,311 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:37,311 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:37,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-06 16:18:37,312 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:37,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:37,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1614908200, now seen corresponding path program 2 times [2021-10-06 16:18:37,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:37,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992205655] [2021-10-06 16:18:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:37,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:37,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:37,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992205655] [2021-10-06 16:18:37,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992205655] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:37,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:37,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-06 16:18:37,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450842498] [2021-10-06 16:18:37,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 16:18:37,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 16:18:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:37,366 INFO L87 Difference]: Start difference. First operand 44 states and 72 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) [2021-10-06 16:18:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:37,404 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2021-10-06 16:18:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 16:18:37,404 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 [2021-10-06 16:18:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:37,405 INFO L225 Difference]: With dead ends: 36 [2021-10-06 16:18:37,405 INFO L226 Difference]: Without dead ends: 28 [2021-10-06 16:18:37,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-06 16:18:37,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-06 16:18:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-06 16:18:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 16:18:37,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 44 transitions. [2021-10-06 16:18:37,407 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 44 transitions. Word has length 9 [2021-10-06 16:18:37,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:37,408 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 44 transitions. [2021-10-06 16:18:37,408 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) [2021-10-06 16:18:37,408 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2021-10-06 16:18:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-06 16:18:37,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 16:18:37,408 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 16:18:37,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-06 16:18:37,409 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-10-06 16:18:37,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:18:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1614875510, now seen corresponding path program 2 times [2021-10-06 16:18:37,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:18:37,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24745193] [2021-10-06 16:18:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:18:37,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:18:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:18:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:18:37,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:18:37,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24745193] [2021-10-06 16:18:37,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24745193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:18:37,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:18:37,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-06 16:18:37,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429572115] [2021-10-06 16:18:37,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 16:18:37,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:18:37,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 16:18:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-06 16:18:37,460 INFO L87 Difference]: Start difference. First operand 28 states and 44 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) [2021-10-06 16:18:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 16:18:37,486 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2021-10-06 16:18:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 16:18:37,486 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 [2021-10-06 16:18:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 16:18:37,487 INFO L225 Difference]: With dead ends: 20 [2021-10-06 16:18:37,487 INFO L226 Difference]: Without dead ends: 0 [2021-10-06 16:18:37,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-06 16:18:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-06 16:18:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-06 16:18:37,504 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) [2021-10-06 16:18:37,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-06 16:18:37,506 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-06 16:18:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 16:18:37,506 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-06 16:18:37,506 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) [2021-10-06 16:18:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-06 16:18:37,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-06 16:18:37,509 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:18:37,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:18:37,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-06 16:18:37,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-06 16:18:37,519 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:18:37,519 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:18:37,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:18:37 BasicIcfg [2021-10-06 16:18:37,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:18:37,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:18:37,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:18:37,522 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:18:37,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:18:30" (3/4) ... [2021-10-06 16:18:37,525 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-06 16:18:37,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-06 16:18:37,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-06 16:18:37,535 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-06 16:18:37,535 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-06 16:18:37,535 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-06 16:18:37,536 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-06 16:18:37,579 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel/bluetooth.wvr.c-witness.graphml [2021-10-06 16:18:37,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:18:37,581 INFO L168 Benchmark]: Toolchain (without parser) took 8660.69 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 138.7 MB in the beginning and 171.5 MB in the end (delta: -32.8 MB). Peak memory consumption was 897.9 kB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,581 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 164.6 MB. Free memory is still 135.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:18:37,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.14 ms. Allocated memory is still 164.6 MB. Free memory was 138.4 MB in the beginning and 127.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.33 ms. Allocated memory is still 164.6 MB. Free memory was 127.9 MB in the beginning and 126.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,583 INFO L168 Benchmark]: Boogie Preprocessor took 56.70 ms. Allocated memory is still 164.6 MB. Free memory was 126.1 MB in the beginning and 124.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,583 INFO L168 Benchmark]: RCFGBuilder took 656.52 ms. Allocated memory is still 164.6 MB. Free memory was 124.8 MB in the beginning and 146.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,584 INFO L168 Benchmark]: TraceAbstraction took 7468.94 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 145.6 MB in the beginning and 174.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,584 INFO L168 Benchmark]: Witness Printer took 57.13 ms. Allocated memory is still 198.2 MB. Free memory was 174.1 MB in the beginning and 171.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 16:18:37,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 164.6 MB. Free memory is still 135.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 332.14 ms. Allocated memory is still 164.6 MB. Free memory was 138.4 MB in the beginning and 127.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 75.33 ms. Allocated memory is still 164.6 MB. Free memory was 127.9 MB in the beginning and 126.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.70 ms. Allocated memory is still 164.6 MB. Free memory was 126.1 MB in the beginning and 124.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 656.52 ms. Allocated memory is still 164.6 MB. Free memory was 124.8 MB in the beginning and 146.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7468.94 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 145.6 MB in the beginning and 174.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB. * Witness Printer took 57.13 ms. Allocated memory is still 198.2 MB. Free memory was 174.1 MB in the beginning and 171.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5309.9ms, 130 PlacesBefore, 35 PlacesAfterwards, 133 TransitionsBefore, 30 TransitionsAfterwards, 1110 CoEnabledTransitionPairs, 8 FixpointIterations, 71 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 137 TotalNumberOfCompositions, 4602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2397, positive: 2156, positive conditional: 0, positive unconditional: 2156, negative: 241, negative conditional: 0, negative unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 849, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 849, positive: 782, positive conditional: 0, positive unconditional: 782, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 67, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2397, positive: 1351, positive conditional: 0, positive unconditional: 1351, negative: 197, negative conditional: 0, negative unconditional: 197, unknown: 849, unknown conditional: 0, unknown unconditional: 849] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 132, Positive conditional cache size: 0, Positive unconditional cache size: 132, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - 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, 160 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 7330.5ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 18.0ms, AutomataDifference: 719.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5377.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 290 SDtfs, 303 SDslu, 361 SDs, 0 SdLazy, 423 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 378.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 195.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=0, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 133.6ms AutomataMinimizationTime, 13 MinimizatonAttempts, 56 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.8ms SsaConstructionTime, 221.2ms SatisfiabilityAnalysisTime, 584.3ms InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2021-10-06 16:18:37,641 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...