/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:17:12,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:17:12,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:17:12,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:17:12,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:17:12,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:17:12,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:17:12,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:17:12,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:17:12,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:17:12,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:17:12,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:17:12,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:17:12,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:17:12,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:17:12,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:17:12,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:17:12,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:17:12,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:17:12,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:17:12,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:17:12,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:17:12,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:17:12,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:17:12,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 15:17:12,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 15:17:12,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 15:17:12,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 15:17:12,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 15:17:12,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 15:17:12,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 15:17:12,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 15:17:12,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 15:17:12,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 15:17:12,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 15:17:12,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 15:17:12,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 15:17:12,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 15:17:12,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:17:12,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:17:12,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:17:12,127 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-SemanticLbe.epf [2022-12-12 15:17:12,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:17:12,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:17:12,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:17:12,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:17:12,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:17:12,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:17:12,160 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:17:12,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:17:12,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:17:12,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:17:12,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:17:12,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:17:12,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:17:12,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:17:12,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:17:12,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:17:12,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:17:12,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:17:12,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:17:12,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:17:12,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:17:12,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:17:12,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:17:12,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:17:12,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:17:12,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:17:12,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:17:12,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:17:12,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:17:12,488 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:17:12,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c [2022-12-12 15:17:13,513 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:17:13,709 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:17:13,710 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c [2022-12-12 15:17:13,716 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5cd23aa/b9465ea3c1624a2ba86e6d7eaaa7d710/FLAG2525674af [2022-12-12 15:17:13,731 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5cd23aa/b9465ea3c1624a2ba86e6d7eaaa7d710 [2022-12-12 15:17:13,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:17:13,734 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:17:13,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:17:13,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:17:13,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:17:13,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:17:13" (1/1) ... [2022-12-12 15:17:13,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c7cadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:13, skipping insertion in model container [2022-12-12 15:17:13,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:17:13" (1/1) ... [2022-12-12 15:17:13,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:17:13,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:17:13,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:17:13,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:17:13,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:17:13,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:17:13,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:17:13,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:17:13,937 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/chl-collitem-subst.wvr.c[3544,3557] [2022-12-12 15:17:13,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:17:13,960 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:17:13,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:17:13,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:17:13,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:17:13,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:17:13,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 15:17:13,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 15:17:14,002 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/chl-collitem-subst.wvr.c[3544,3557] [2022-12-12 15:17:14,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:17:14,015 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:17:14,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14 WrapperNode [2022-12-12 15:17:14,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:17:14,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:17:14,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:17:14,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:17:14,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,076 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 353 [2022-12-12 15:17:14,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:17:14,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:17:14,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:17:14,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:17:14,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:17:14,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:17:14,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:17:14,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:17:14,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (1/1) ... [2022-12-12 15:17:14,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:17:14,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:17:14,171 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) [2022-12-12 15:17:14,197 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 [2022-12-12 15:17:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:17:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 15:17:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 15:17:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 15:17:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 15:17:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 15:17:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 15:17:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:17:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 15:17:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:17:14,217 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 15:17:14,367 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:17:14,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:17:14,777 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:17:15,231 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:17:15,231 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:17:15,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:17:15 BoogieIcfgContainer [2022-12-12 15:17:15,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:17:15,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:17:15,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:17:15,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:17:15,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:17:13" (1/3) ... [2022-12-12 15:17:15,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1dcb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:17:15, skipping insertion in model container [2022-12-12 15:17:15,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:17:14" (2/3) ... [2022-12-12 15:17:15,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1dcb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:17:15, skipping insertion in model container [2022-12-12 15:17:15,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:17:15" (3/3) ... [2022-12-12 15:17:15,241 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-12-12 15:17:15,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:17:15,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:17:15,258 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:17:15,368 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 15:17:15,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 276 flow [2022-12-12 15:17:15,472 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-12 15:17:15,473 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 15:17:15,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-12 15:17:15,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 276 flow [2022-12-12 15:17:15,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 244 flow [2022-12-12 15:17:15,483 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:17:15,508 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 244 flow [2022-12-12 15:17:15,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 244 flow [2022-12-12 15:17:15,543 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-12 15:17:15,544 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 15:17:15,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-12-12 15:17:15,546 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 244 flow [2022-12-12 15:17:15,546 INFO L226 LiptonReduction]: Number of co-enabled transitions 270 [2022-12-12 15:17:25,661 INFO L241 LiptonReduction]: Total number of compositions: 97 [2022-12-12 15:17:25,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:17:25,689 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;@70b2903f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:17:25,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 15:17:25,699 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-12 15:17:25,699 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 15:17:25,699 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:17:25,700 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:17:25,700 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)] === [2022-12-12 15:17:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:17:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash 124578236, now seen corresponding path program 1 times [2022-12-12 15:17:25,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:17:25,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14638818] [2022-12-12 15:17:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:17:25,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:17:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:17:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:17:52,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:17:52,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14638818] [2022-12-12 15:17:52,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14638818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:17:52,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:17:52,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:17:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415796665] [2022-12-12 15:17:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:17:52,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:17:52,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:17:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:17:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:17:52,159 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 15:17:52,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:17:52,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:17:52,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 15:17:52,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:17:52,639 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2022-12-12 15:17:52,640 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-12 15:17:52,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 277 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2022-12-12 15:17:52,644 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2022-12-12 15:17:52,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2022-12-12 15:17:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:17:52,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:17:52,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2022-12-12 15:17:52,655 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-12 15:17:52,656 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 46 transitions. [2022-12-12 15:17:52,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2022-12-12 15:17:52,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 45 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-12 15:17:52,662 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2022-12-12 15:17:52,663 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2022-12-12 15:17:52,669 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2022-12-12 15:17:52,669 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2022-12-12 15:17:52,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:17:52,670 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:17:52,670 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:17:52,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:17:52,670 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)] === [2022-12-12 15:17:52,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:17:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1052122724, now seen corresponding path program 2 times [2022-12-12 15:17:52,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:17:52,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822099177] [2022-12-12 15:17:52,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:17:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:17:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:17:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:17:54,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:17:54,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822099177] [2022-12-12 15:17:54,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822099177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:17:54,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:17:54,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:17:54,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257183556] [2022-12-12 15:17:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:17:54,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:17:54,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:17:54,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:17:54,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:17:54,804 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 15:17:54,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:17:54,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:17:54,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 15:17:54,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:17:55,155 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2022-12-12 15:17:55,156 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-12 15:17:55,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 116 events. 38/116 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 412 event pairs, 6 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 309. Up to 58 conditions per place. [2022-12-12 15:17:55,159 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 30 selfloop transitions, 7 changer transitions 9/46 dead transitions. [2022-12-12 15:17:55,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 46 transitions, 235 flow [2022-12-12 15:17:55,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:17:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:17:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2022-12-12 15:17:55,161 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-12 15:17:55,161 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 6 states and 46 transitions. [2022-12-12 15:17:55,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 46 transitions, 235 flow [2022-12-12 15:17:55,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 46 transitions, 231 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-12 15:17:55,165 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 100 flow [2022-12-12 15:17:55,165 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2022-12-12 15:17:55,166 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2022-12-12 15:17:55,166 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 100 flow [2022-12-12 15:17:55,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:17:55,166 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:17:55,166 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:17:55,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 15:17:55,167 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)] === [2022-12-12 15:17:55,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:17:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2035286470, now seen corresponding path program 3 times [2022-12-12 15:17:55,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:17:55,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732801502] [2022-12-12 15:17:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:17:55,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:17:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:17:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:17:57,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:17:57,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732801502] [2022-12-12 15:17:57,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732801502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:17:57,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:17:57,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:17:57,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408982081] [2022-12-12 15:17:57,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:17:57,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:17:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:17:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:17:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:17:57,344 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 15:17:57,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 100 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:17:57,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:17:57,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 15:17:57,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:17:57,632 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2022-12-12 15:17:57,633 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-12-12 15:17:57,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 103 events. 33/103 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 340 event pairs, 2 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 334. Up to 51 conditions per place. [2022-12-12 15:17:57,634 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2022-12-12 15:17:57,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 257 flow [2022-12-12 15:17:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:17:57,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:17:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2022-12-12 15:17:57,636 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2022-12-12 15:17:57,637 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 100 flow. Second operand 6 states and 44 transitions. [2022-12-12 15:17:57,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 257 flow [2022-12-12 15:17:57,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-12 15:17:57,639 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 100 flow [2022-12-12 15:17:57,639 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=20} [2022-12-12 15:17:57,640 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2022-12-12 15:17:57,640 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 100 flow [2022-12-12 15:17:57,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:17:57,640 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:17:57,640 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:17:57,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 15:17:57,641 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)] === [2022-12-12 15:17:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:17:57,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2030110728, now seen corresponding path program 4 times [2022-12-12 15:17:57,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:17:57,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049577284] [2022-12-12 15:17:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:17:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:17:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:18:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:18:00,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:18:00,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049577284] [2022-12-12 15:18:00,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049577284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:18:00,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:18:00,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:18:00,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90994629] [2022-12-12 15:18:00,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:18:00,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:18:00,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:18:00,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:18:00,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:18:00,505 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 15:18:00,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 100 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:18:00,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:18:00,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 15:18:00,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:18:00,946 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2022-12-12 15:18:00,946 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-12-12 15:18:00,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 59 events. 17/59 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 205. Up to 20 conditions per place. [2022-12-12 15:18:00,947 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 18 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2022-12-12 15:18:00,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 219 flow [2022-12-12 15:18:00,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:18:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:18:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2022-12-12 15:18:00,948 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-12 15:18:00,948 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 100 flow. Second operand 6 states and 36 transitions. [2022-12-12 15:18:00,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 219 flow [2022-12-12 15:18:00,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 202 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-12 15:18:00,950 INFO L231 Difference]: Finished difference. Result has 37 places, 18 transitions, 81 flow [2022-12-12 15:18:00,950 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=37, PETRI_TRANSITIONS=18} [2022-12-12 15:18:00,951 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-12 15:18:00,951 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 81 flow [2022-12-12 15:18:00,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:18:00,952 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:18:00,952 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:18:00,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 15:18:00,952 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)] === [2022-12-12 15:18:00,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:18:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1063765612, now seen corresponding path program 5 times [2022-12-12 15:18:00,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:18:00,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429476669] [2022-12-12 15:18:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:18:00,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:18:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:18:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:18:03,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:18:03,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429476669] [2022-12-12 15:18:03,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429476669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:18:03,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:18:03,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:18:03,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315329157] [2022-12-12 15:18:03,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:18:03,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:18:03,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:18:03,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:18:03,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:18:03,328 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 15:18:03,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 81 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:18:03,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:18:03,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 15:18:03,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:18:03,623 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2022-12-12 15:18:03,623 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-12 15:18:03,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 40 events. 8/40 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 134. Up to 19 conditions per place. [2022-12-12 15:18:03,624 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2022-12-12 15:18:03,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 178 flow [2022-12-12 15:18:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:18:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:18:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2022-12-12 15:18:03,626 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3229166666666667 [2022-12-12 15:18:03,626 INFO L175 Difference]: Start difference. First operand has 37 places, 18 transitions, 81 flow. Second operand 6 states and 31 transitions. [2022-12-12 15:18:03,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 178 flow [2022-12-12 15:18:03,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 144 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-12 15:18:03,627 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 56 flow [2022-12-12 15:18:03,628 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2022-12-12 15:18:03,628 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2022-12-12 15:18:03,628 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 56 flow [2022-12-12 15:18:03,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:18:03,629 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:18:03,629 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:18:03,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 15:18:03,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 15:18:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:18:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash -997094190, now seen corresponding path program 6 times [2022-12-12 15:18:03,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:18:03,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449208999] [2022-12-12 15:18:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:18:03,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:18:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:18:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:18:05,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:18:05,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449208999] [2022-12-12 15:18:05,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449208999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:18:05,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:18:05,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:18:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647705550] [2022-12-12 15:18:05,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:18:05,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:18:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:18:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:18:05,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:18:05,672 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 15:18:05,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 56 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:18:05,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:18:05,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 15:18:05,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:18:06,036 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-12 15:18:06,036 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-12 15:18:06,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 62. Up to 8 conditions per place. [2022-12-12 15:18:06,036 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-12 15:18:06,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 94 flow [2022-12-12 15:18:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:18:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:18:06,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-12-12 15:18:06,037 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.19791666666666666 [2022-12-12 15:18:06,038 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 56 flow. Second operand 6 states and 19 transitions. [2022-12-12 15:18:06,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 94 flow [2022-12-12 15:18:06,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-12 15:18:06,038 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2022-12-12 15:18:06,038 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2022-12-12 15:18:06,039 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-12 15:18:06,039 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2022-12-12 15:18:06,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:18:06,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 15:18:06,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 15:18:06,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 15:18:06,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 15:18:06,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 15:18:06,043 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-12 15:18:06,045 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:18:06,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:18:06,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:18:06 BasicIcfg [2022-12-12 15:18:06,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:18:06,048 INFO L158 Benchmark]: Toolchain (without parser) took 52314.18ms. Allocated memory was 183.5MB in the beginning and 660.6MB in the end (delta: 477.1MB). Free memory was 141.1MB in the beginning and 591.7MB in the end (delta: -450.5MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. [2022-12-12 15:18:06,048 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:18:06,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.36ms. Allocated memory is still 183.5MB. Free memory was 140.7MB in the beginning and 128.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 15:18:06,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.22ms. Allocated memory is still 183.5MB. Free memory was 128.3MB in the beginning and 125.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 15:18:06,049 INFO L158 Benchmark]: Boogie Preprocessor took 66.08ms. Allocated memory is still 183.5MB. Free memory was 125.6MB in the beginning and 161.2MB in the end (delta: -35.6MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2022-12-12 15:18:06,049 INFO L158 Benchmark]: RCFGBuilder took 1089.81ms. Allocated memory is still 183.5MB. Free memory was 161.2MB in the beginning and 91.0MB in the end (delta: 70.2MB). Peak memory consumption was 70.7MB. Max. memory is 8.0GB. [2022-12-12 15:18:06,050 INFO L158 Benchmark]: TraceAbstraction took 50812.21ms. Allocated memory was 183.5MB in the beginning and 660.6MB in the end (delta: 477.1MB). Free memory was 89.4MB in the beginning and 591.7MB in the end (delta: -502.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:18:06,051 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 106.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 279.36ms. Allocated memory is still 183.5MB. Free memory was 140.7MB in the beginning and 128.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.22ms. Allocated memory is still 183.5MB. Free memory was 128.3MB in the beginning and 125.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.08ms. Allocated memory is still 183.5MB. Free memory was 125.6MB in the beginning and 161.2MB in the end (delta: -35.6MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. * RCFGBuilder took 1089.81ms. Allocated memory is still 183.5MB. Free memory was 161.2MB in the beginning and 91.0MB in the end (delta: 70.2MB). Peak memory consumption was 70.7MB. Max. memory is 8.0GB. * TraceAbstraction took 50812.21ms. Allocated memory was 183.5MB in the beginning and 660.6MB in the end (delta: 477.1MB). Free memory was 89.4MB in the beginning and 591.7MB in the end (delta: -502.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 121 PlacesBefore, 26 PlacesAfterwards, 113 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 77 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 97 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 117, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 117, unknown conditional: 0, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 101]: 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, 140 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: 50.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 430 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 430 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=2, InterpolantAutomatonStates: 36, 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, 1.2s SatisfiabilityAnalysisTime, 36.6s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 4027 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-12-12 15:18:06,072 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...