/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:35:10,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:35:10,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:35:10,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:35:10,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:35:10,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:35:10,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:35:10,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:35:10,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:35:10,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:35:10,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:35:10,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:35:10,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:35:10,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:35:10,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:35:10,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:35:10,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:35:10,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:35:10,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:35:10,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:35:10,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:35:10,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:35:10,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:35:10,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:35:10,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:35:10,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:35:10,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:35:10,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:35:10,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:35:10,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:35:10,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:35:10,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:35:10,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:35:10,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:35:10,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:35:10,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:35:10,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:35:10,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:35:10,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:35:10,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:35:10,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:35:10,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:35:10,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:35:10,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:35:10,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:35:10,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:35:10,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:35:10,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:35:10,463 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:35:10,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:35:10,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:35:10,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:35:10,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:35:10,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:35:10,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:35:10,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:35:10,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:35:10,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:35:10,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:35:10,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:35:10,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:35:10,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:35:10,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:35:10,473 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:35:10,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:35:10,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:35:10,474 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:35:10,474 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:35:10,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:35:10,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:35:10,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:35:10,794 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:35:10,795 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:35:10,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-12-11 19:35:11,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:35:12,075 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:35:12,076 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-12-11 19:35:12,085 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0bf6b09/477d4ccfbf5f42b3af4e7e4dbf8aefd7/FLAGd5f09782e [2022-12-11 19:35:12,097 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0bf6b09/477d4ccfbf5f42b3af4e7e4dbf8aefd7 [2022-12-11 19:35:12,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:35:12,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:35:12,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:35:12,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:35:12,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:35:12,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb75715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12, skipping insertion in model container [2022-12-11 19:35:12,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:35:12,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:35:12,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:35:12,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:35:12,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:35:12,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:35:12,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-12-11 19:35:12,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:35:12,297 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:35:12,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:35:12,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:35:12,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:35:12,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:35:12,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-12-11 19:35:12,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:35:12,339 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:35:12,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12 WrapperNode [2022-12-11 19:35:12,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:35:12,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:35:12,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:35:12,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:35:12,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,377 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 19:35:12,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:35:12,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:35:12,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:35:12,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:35:12,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,408 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:35:12,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:35:12,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:35:12,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:35:12,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (1/1) ... [2022-12-11 19:35:12,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:35:12,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:35:12,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 19:35:12,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 19:35:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:35:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 19:35:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 19:35:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 19:35:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 19:35:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 19:35:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 19:35:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:35:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:35:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:35:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:35:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:35:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:35:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:35:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:35:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:35:12,493 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:35:12,600 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:35:12,601 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:35:12,794 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:35:12,817 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:35:12,817 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:35:12,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:35:12 BoogieIcfgContainer [2022-12-11 19:35:12,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:35:12,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:35:12,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:35:12,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:35:12,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:35:12" (1/3) ... [2022-12-11 19:35:12,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4b7a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:35:12, skipping insertion in model container [2022-12-11 19:35:12,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:35:12" (2/3) ... [2022-12-11 19:35:12,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4b7a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:35:12, skipping insertion in model container [2022-12-11 19:35:12,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:35:12" (3/3) ... [2022-12-11 19:35:12,827 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-12-11 19:35:12,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:35:12,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:35:12,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:35:12,901 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-11 19:35:12,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 198 flow [2022-12-11 19:35:12,975 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-12-11 19:35:12,975 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:35:12,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 2/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 24 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-11 19:35:13,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 87 transitions, 198 flow [2022-12-11 19:35:13,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 74 transitions, 166 flow [2022-12-11 19:35:13,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:35:13,042 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@258161a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:35:13,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:35:13,072 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2022-12-11 19:35:13,072 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:35:13,072 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:35:13,073 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:35:13,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:35:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:35:13,081 INFO L85 PathProgramCache]: Analyzing trace with hash -511271724, now seen corresponding path program 1 times [2022-12-11 19:35:13,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:35:13,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843942804] [2022-12-11 19:35:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:35:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:35:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:35:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:35:14,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:35:14,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843942804] [2022-12-11 19:35:14,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843942804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:35:14,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:35:14,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:35:14,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814200401] [2022-12-11 19:35:14,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:35:14,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:35:14,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:35:14,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:35:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:35:14,374 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-11 19:35:14,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 166 flow. Second operand has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:14,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:35:14,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-11 19:35:14,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:35:14,933 INFO L130 PetriNetUnfolder]: 47/213 cut-off events. [2022-12-11 19:35:14,934 INFO L131 PetriNetUnfolder]: For 79/85 co-relation queries the response was YES. [2022-12-11 19:35:14,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 213 events. 47/213 cut-off events. For 79/85 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 725 event pairs, 21 based on Foata normal form. 6/210 useless extension candidates. Maximal degree in co-relation 250. Up to 85 conditions per place. [2022-12-11 19:35:14,939 INFO L137 encePairwiseOnDemand]: 71/87 looper letters, 27 selfloop transitions, 15 changer transitions 13/99 dead transitions. [2022-12-11 19:35:14,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 99 transitions, 347 flow [2022-12-11 19:35:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:35:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:35:14,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 787 transitions. [2022-12-11 19:35:14,960 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.695844385499558 [2022-12-11 19:35:14,961 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 166 flow. Second operand 13 states and 787 transitions. [2022-12-11 19:35:14,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 99 transitions, 347 flow [2022-12-11 19:35:14,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 99 transitions, 321 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-11 19:35:14,971 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 237 flow [2022-12-11 19:35:14,973 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=237, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2022-12-11 19:35:14,976 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2022-12-11 19:35:14,976 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 237 flow [2022-12-11 19:35:14,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:14,977 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:35:14,977 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:35:14,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:35:14,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:35:14,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:35:14,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1864249302, now seen corresponding path program 2 times [2022-12-11 19:35:14,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:35:14,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689628454] [2022-12-11 19:35:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:35:14,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:35:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:35:15,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:35:15,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:35:15,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689628454] [2022-12-11 19:35:15,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689628454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:35:15,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:35:15,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:35:15,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699450163] [2022-12-11 19:35:15,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:35:15,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:35:15,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:35:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:35:15,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:35:15,558 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-11 19:35:15,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 237 flow. Second operand has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:15,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:35:15,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-11 19:35:15,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:35:15,969 INFO L130 PetriNetUnfolder]: 61/256 cut-off events. [2022-12-11 19:35:15,969 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2022-12-11 19:35:15,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 256 events. 61/256 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 999 event pairs, 1 based on Foata normal form. 1/256 useless extension candidates. Maximal degree in co-relation 545. Up to 71 conditions per place. [2022-12-11 19:35:15,972 INFO L137 encePairwiseOnDemand]: 75/87 looper letters, 41 selfloop transitions, 19 changer transitions 19/123 dead transitions. [2022-12-11 19:35:15,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 123 transitions, 550 flow [2022-12-11 19:35:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:35:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:35:15,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 794 transitions. [2022-12-11 19:35:15,977 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7020335985853228 [2022-12-11 19:35:15,978 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 237 flow. Second operand 13 states and 794 transitions. [2022-12-11 19:35:15,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 123 transitions, 550 flow [2022-12-11 19:35:15,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 123 transitions, 536 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-11 19:35:15,985 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 361 flow [2022-12-11 19:35:15,986 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=361, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2022-12-11 19:35:15,986 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 17 predicate places. [2022-12-11 19:35:15,986 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 361 flow [2022-12-11 19:35:15,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:15,987 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:35:15,987 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:35:15,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:35:15,988 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:35:15,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:35:15,989 INFO L85 PathProgramCache]: Analyzing trace with hash 443810422, now seen corresponding path program 3 times [2022-12-11 19:35:15,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:35:15,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252152779] [2022-12-11 19:35:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:35:15,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:35:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:35:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:35:16,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:35:16,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252152779] [2022-12-11 19:35:16,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252152779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:35:16,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:35:16,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:35:16,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935510847] [2022-12-11 19:35:16,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:35:16,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:35:16,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:35:16,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:35:16,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:35:16,428 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-11 19:35:16,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 361 flow. Second operand has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:16,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:35:16,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-11 19:35:16,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:35:16,885 INFO L130 PetriNetUnfolder]: 53/262 cut-off events. [2022-12-11 19:35:16,886 INFO L131 PetriNetUnfolder]: For 204/212 co-relation queries the response was YES. [2022-12-11 19:35:16,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 262 events. 53/262 cut-off events. For 204/212 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1119 event pairs, 6 based on Foata normal form. 4/263 useless extension candidates. Maximal degree in co-relation 652. Up to 49 conditions per place. [2022-12-11 19:35:16,889 INFO L137 encePairwiseOnDemand]: 75/87 looper letters, 24 selfloop transitions, 15 changer transitions 41/124 dead transitions. [2022-12-11 19:35:16,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 124 transitions, 660 flow [2022-12-11 19:35:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:35:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:35:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 792 transitions. [2022-12-11 19:35:16,894 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7002652519893899 [2022-12-11 19:35:16,894 INFO L175 Difference]: Start difference. First operand has 99 places, 95 transitions, 361 flow. Second operand 13 states and 792 transitions. [2022-12-11 19:35:16,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 124 transitions, 660 flow [2022-12-11 19:35:16,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 124 transitions, 607 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-12-11 19:35:16,901 INFO L231 Difference]: Finished difference. Result has 107 places, 79 transitions, 290 flow [2022-12-11 19:35:16,901 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=290, PETRI_PLACES=107, PETRI_TRANSITIONS=79} [2022-12-11 19:35:16,903 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 25 predicate places. [2022-12-11 19:35:16,903 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 79 transitions, 290 flow [2022-12-11 19:35:16,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:16,904 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:35:16,905 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:35:16,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:35:16,906 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:35:16,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:35:16,906 INFO L85 PathProgramCache]: Analyzing trace with hash -191324216, now seen corresponding path program 4 times [2022-12-11 19:35:16,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:35:16,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821896821] [2022-12-11 19:35:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:35:16,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:35:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:35:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:35:17,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:35:17,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821896821] [2022-12-11 19:35:17,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821896821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:35:17,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:35:17,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:35:17,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951566714] [2022-12-11 19:35:17,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:35:17,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:35:17,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:35:17,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:35:17,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:35:17,371 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-11 19:35:17,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 79 transitions, 290 flow. Second operand has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:17,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:35:17,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-11 19:35:17,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:35:17,647 INFO L130 PetriNetUnfolder]: 12/132 cut-off events. [2022-12-11 19:35:17,647 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-12-11 19:35:17,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 132 events. 12/132 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 346 event pairs, 3 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 298. Up to 26 conditions per place. [2022-12-11 19:35:17,648 INFO L137 encePairwiseOnDemand]: 75/87 looper letters, 22 selfloop transitions, 6 changer transitions 19/91 dead transitions. [2022-12-11 19:35:17,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 91 transitions, 421 flow [2022-12-11 19:35:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:35:17,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:35:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 774 transitions. [2022-12-11 19:35:17,654 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6843501326259946 [2022-12-11 19:35:17,654 INFO L175 Difference]: Start difference. First operand has 107 places, 79 transitions, 290 flow. Second operand 13 states and 774 transitions. [2022-12-11 19:35:17,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 91 transitions, 421 flow [2022-12-11 19:35:17,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 91 transitions, 356 flow, removed 14 selfloop flow, removed 16 redundant places. [2022-12-11 19:35:17,657 INFO L231 Difference]: Finished difference. Result has 101 places, 72 transitions, 209 flow [2022-12-11 19:35:17,657 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=209, PETRI_PLACES=101, PETRI_TRANSITIONS=72} [2022-12-11 19:35:17,658 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 19 predicate places. [2022-12-11 19:35:17,658 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 72 transitions, 209 flow [2022-12-11 19:35:17,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:17,659 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:35:17,659 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:35:17,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:35:17,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:35:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:35:17,660 INFO L85 PathProgramCache]: Analyzing trace with hash 262837988, now seen corresponding path program 5 times [2022-12-11 19:35:17,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:35:17,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211921775] [2022-12-11 19:35:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:35:17,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:35:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:35:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:35:18,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:35:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211921775] [2022-12-11 19:35:18,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211921775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:35:18,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:35:18,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:35:18,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570306245] [2022-12-11 19:35:18,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:35:18,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:35:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:35:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:35:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:35:18,068 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-11 19:35:18,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 72 transitions, 209 flow. Second operand has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:18,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:35:18,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-11 19:35:18,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:35:18,319 INFO L130 PetriNetUnfolder]: 4/83 cut-off events. [2022-12-11 19:35:18,320 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-11 19:35:18,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 83 events. 4/83 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 66 event pairs, 0 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 154. Up to 7 conditions per place. [2022-12-11 19:35:18,320 INFO L137 encePairwiseOnDemand]: 75/87 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2022-12-11 19:35:18,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 72 transitions, 270 flow [2022-12-11 19:35:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 19:35:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 19:35:18,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 703 transitions. [2022-12-11 19:35:18,323 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6733716475095786 [2022-12-11 19:35:18,323 INFO L175 Difference]: Start difference. First operand has 101 places, 72 transitions, 209 flow. Second operand 12 states and 703 transitions. [2022-12-11 19:35:18,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 72 transitions, 270 flow [2022-12-11 19:35:18,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 72 transitions, 235 flow, removed 2 selfloop flow, removed 14 redundant places. [2022-12-11 19:35:18,324 INFO L231 Difference]: Finished difference. Result has 87 places, 0 transitions, 0 flow [2022-12-11 19:35:18,325 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=87, PETRI_TRANSITIONS=0} [2022-12-11 19:35:18,325 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2022-12-11 19:35:18,325 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 0 transitions, 0 flow [2022-12-11 19:35:18,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.36363636363637) internal successors, (642), 11 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:35:18,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 19:35:18,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 19:35:18,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 19:35:18,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 19:35:18,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:35:18,330 INFO L445 BasicCegarLoop]: Path program histogram: [5] [2022-12-11 19:35:18,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:35:18,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:35:18,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:35:18 BasicIcfg [2022-12-11 19:35:18,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:35:18,342 INFO L158 Benchmark]: Toolchain (without parser) took 6242.19ms. Allocated memory was 168.8MB in the beginning and 244.3MB in the end (delta: 75.5MB). Free memory was 146.3MB in the beginning and 202.3MB in the end (delta: -56.0MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. [2022-12-11 19:35:18,342 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:35:18,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.39ms. Allocated memory is still 168.8MB. Free memory was 145.9MB in the beginning and 134.8MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-11 19:35:18,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.11ms. Allocated memory is still 168.8MB. Free memory was 134.8MB in the beginning and 133.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:35:18,346 INFO L158 Benchmark]: Boogie Preprocessor took 31.69ms. Allocated memory is still 168.8MB. Free memory was 133.4MB in the beginning and 132.1MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:35:18,349 INFO L158 Benchmark]: RCFGBuilder took 408.45ms. Allocated memory is still 168.8MB. Free memory was 132.1MB in the beginning and 118.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 19:35:18,350 INFO L158 Benchmark]: TraceAbstraction took 5519.98ms. Allocated memory was 168.8MB in the beginning and 244.3MB in the end (delta: 75.5MB). Free memory was 117.4MB in the beginning and 202.3MB in the end (delta: -84.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:35:18,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.39ms. Allocated memory is still 168.8MB. Free memory was 145.9MB in the beginning and 134.8MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.11ms. Allocated memory is still 168.8MB. Free memory was 134.8MB in the beginning and 133.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.69ms. Allocated memory is still 168.8MB. Free memory was 133.4MB in the beginning and 132.1MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 408.45ms. Allocated memory is still 168.8MB. Free memory was 132.1MB in the beginning and 118.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5519.98ms. Allocated memory was 168.8MB in the beginning and 244.3MB in the end (delta: 75.5MB). Free memory was 117.4MB in the beginning and 202.3MB in the end (delta: -84.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1326 IncrementalHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 57 mSDtfsCounter, 1326 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=2, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 5653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:35:18,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...