/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-?-0612a5f-m [2022-09-20 21:02:15,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 21:02:15,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 21:02:15,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 21:02:15,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 21:02:15,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 21:02:15,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 21:02:15,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 21:02:15,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 21:02:15,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 21:02:15,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 21:02:15,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 21:02:15,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 21:02:15,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 21:02:15,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 21:02:15,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 21:02:15,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 21:02:15,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 21:02:15,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 21:02:15,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 21:02:15,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 21:02:15,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 21:02:15,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 21:02:15,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 21:02:15,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 21:02:15,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 21:02:15,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 21:02:15,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 21:02:15,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 21:02:15,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 21:02:15,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 21:02:15,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 21:02:15,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 21:02:15,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 21:02:15,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 21:02:15,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 21:02:15,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 21:02:15,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 21:02:15,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 21:02:15,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 21:02:15,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 21:02:15,123 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 [2022-09-20 21:02:15,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 21:02:15,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 21:02:15,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 21:02:15,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 21:02:15,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 21:02:15,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 21:02:15,153 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 21:02:15,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 21:02:15,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 21:02:15,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 21:02:15,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 21:02:15,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 21:02:15,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 21:02:15,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 21:02:15,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 21:02:15,156 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 21:02:15,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 21:02:15,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 21:02:15,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 21:02:15,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 21:02:15,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 21:02:15,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 21:02:15,353 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 21:02:15,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-09-20 21:02:15,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/909eafbba/6ada9699f3f04e1bbb31584a1505ae65/FLAGbb72ce87d [2022-09-20 21:02:15,777 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 21:02:15,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-09-20 21:02:15,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/909eafbba/6ada9699f3f04e1bbb31584a1505ae65/FLAGbb72ce87d [2022-09-20 21:02:15,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/909eafbba/6ada9699f3f04e1bbb31584a1505ae65 [2022-09-20 21:02:15,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 21:02:15,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 21:02:15,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 21:02:15,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 21:02:15,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 21:02:15,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 09:02:15" (1/1) ... [2022-09-20 21:02:15,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0588e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:15, skipping insertion in model container [2022-09-20 21:02:15,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 09:02:15" (1/1) ... [2022-09-20 21:02:15,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 21:02:15,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 21:02:15,954 WARN L230 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] [2022-09-20 21:02:15,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 21:02:15,961 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 21:02:16,000 WARN L230 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] [2022-09-20 21:02:16,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 21:02:16,018 INFO L208 MainTranslator]: Completed translation [2022-09-20 21:02:16,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16 WrapperNode [2022-09-20 21:02:16,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 21:02:16,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 21:02:16,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 21:02:16,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 21:02:16,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,065 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-09-20 21:02:16,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 21:02:16,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 21:02:16,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 21:02:16,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 21:02:16,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 21:02:16,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 21:02:16,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 21:02:16,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 21:02:16,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (1/1) ... [2022-09-20 21:02:16,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 21:02:16,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 21:02:16,145 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) [2022-09-20 21:02:16,160 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 [2022-09-20 21:02:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 21:02:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 21:02:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 21:02:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 21:02:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 21:02:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-20 21:02:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-20 21:02:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 21:02:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 21:02:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 21:02:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 21:02:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 21:02:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 21:02:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 21:02:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 21:02:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 21:02:16,200 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 21:02:16,268 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 21:02:16,269 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 21:02:16,396 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 21:02:16,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 21:02:16,429 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 21:02:16,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 09:02:16 BoogieIcfgContainer [2022-09-20 21:02:16,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 21:02:16,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 21:02:16,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 21:02:16,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 21:02:16,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 09:02:15" (1/3) ... [2022-09-20 21:02:16,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508e6972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 09:02:16, skipping insertion in model container [2022-09-20 21:02:16,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 09:02:16" (2/3) ... [2022-09-20 21:02:16,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508e6972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 09:02:16, skipping insertion in model container [2022-09-20 21:02:16,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 09:02:16" (3/3) ... [2022-09-20 21:02:16,435 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-09-20 21:02:16,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 21:02:16,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 21:02:16,446 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 21:02:16,479 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-20 21:02:16,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 212 flow [2022-09-20 21:02:16,548 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-09-20 21:02:16,548 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-20 21:02:16,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 2/91 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 25 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-09-20 21:02:16,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 212 flow [2022-09-20 21:02:16,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 80 transitions, 178 flow [2022-09-20 21:02:16,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 21:02:16,563 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;@58ad3fe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 21:02:16,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-09-20 21:02:16,583 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2022-09-20 21:02:16,583 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-20 21:02:16,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 21:02:16,583 INFO L208 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, 1, 1, 1, 1, 1, 1] [2022-09-20 21:02:16,584 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)] === [2022-09-20 21:02:16,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 21:02:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash 956838946, now seen corresponding path program 1 times [2022-09-20 21:02:16,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 21:02:16,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502375724] [2022-09-20 21:02:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 21:02:16,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 21:02:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 21:02:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 21:02:17,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 21:02:17,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502375724] [2022-09-20 21:02:17,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502375724] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 21:02:17,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 21:02:17,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 21:02:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561503182] [2022-09-20 21:02:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 21:02:17,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 21:02:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 21:02:17,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 21:02:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 21:02:17,183 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 21:02:17,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 178 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:17,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 21:02:17,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 21:02:17,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 21:02:17,595 INFO L130 PetriNetUnfolder]: 58/250 cut-off events. [2022-09-20 21:02:17,596 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-09-20 21:02:17,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 250 events. 58/250 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 898 event pairs, 1 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 188. Up to 63 conditions per place. [2022-09-20 21:02:17,599 INFO L137 encePairwiseOnDemand]: 78/94 looper letters, 31 selfloop transitions, 15 changer transitions 22/118 dead transitions. [2022-09-20 21:02:17,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 118 transitions, 441 flow [2022-09-20 21:02:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 21:02:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 21:02:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1017 transitions. [2022-09-20 21:02:17,612 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7212765957446808 [2022-09-20 21:02:17,612 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1017 transitions. [2022-09-20 21:02:17,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1017 transitions. [2022-09-20 21:02:17,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 21:02:17,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1017 transitions. [2022-09-20 21:02:17,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 67.8) internal successors, (1017), 15 states have internal predecessors, (1017), 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) [2022-09-20 21:02:17,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 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) [2022-09-20 21:02:17,625 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 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) [2022-09-20 21:02:17,627 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 178 flow. Second operand 15 states and 1017 transitions. [2022-09-20 21:02:17,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 118 transitions, 441 flow [2022-09-20 21:02:17,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 118 transitions, 395 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-20 21:02:17,632 INFO L231 Difference]: Finished difference. Result has 102 places, 87 transitions, 242 flow [2022-09-20 21:02:17,633 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=242, PETRI_PLACES=102, PETRI_TRANSITIONS=87} [2022-09-20 21:02:17,635 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-09-20 21:02:17,635 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 87 transitions, 242 flow [2022-09-20 21:02:17,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:17,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 21:02:17,636 INFO L208 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, 1, 1, 1, 1, 1, 1] [2022-09-20 21:02:17,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 21:02:17,636 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)] === [2022-09-20 21:02:17,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 21:02:17,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1451793492, now seen corresponding path program 2 times [2022-09-20 21:02:17,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 21:02:17,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072755127] [2022-09-20 21:02:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 21:02:17,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 21:02:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 21:02:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 21:02:17,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 21:02:17,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072755127] [2022-09-20 21:02:17,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072755127] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 21:02:17,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 21:02:17,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-20 21:02:17,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634108132] [2022-09-20 21:02:17,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 21:02:17,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-20 21:02:17,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 21:02:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-20 21:02:17,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-20 21:02:17,867 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 21:02:17,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 87 transitions, 242 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 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) [2022-09-20 21:02:17,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 21:02:17,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 21:02:17,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 21:02:18,196 INFO L130 PetriNetUnfolder]: 55/296 cut-off events. [2022-09-20 21:02:18,200 INFO L131 PetriNetUnfolder]: For 111/119 co-relation queries the response was YES. [2022-09-20 21:02:18,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 296 events. 55/296 cut-off events. For 111/119 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1289 event pairs, 10 based on Foata normal form. 4/296 useless extension candidates. Maximal degree in co-relation 585. Up to 63 conditions per place. [2022-09-20 21:02:18,204 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 36 selfloop transitions, 24 changer transitions 17/127 dead transitions. [2022-09-20 21:02:18,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 127 transitions, 551 flow [2022-09-20 21:02:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 21:02:18,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 21:02:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 891 transitions. [2022-09-20 21:02:18,206 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7291325695581015 [2022-09-20 21:02:18,206 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 891 transitions. [2022-09-20 21:02:18,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 891 transitions. [2022-09-20 21:02:18,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 21:02:18,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 891 transitions. [2022-09-20 21:02:18,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.53846153846153) internal successors, (891), 13 states have internal predecessors, (891), 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) [2022-09-20 21:02:18,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-09-20 21:02:18,211 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-09-20 21:02:18,211 INFO L175 Difference]: Start difference. First operand has 102 places, 87 transitions, 242 flow. Second operand 13 states and 891 transitions. [2022-09-20 21:02:18,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 127 transitions, 551 flow [2022-09-20 21:02:18,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 127 transitions, 521 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-09-20 21:02:18,217 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 350 flow [2022-09-20 21:02:18,217 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2022-09-20 21:02:18,218 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2022-09-20 21:02:18,218 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 350 flow [2022-09-20 21:02:18,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 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) [2022-09-20 21:02:18,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 21:02:18,219 INFO L208 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, 1, 1, 1, 1, 1, 1] [2022-09-20 21:02:18,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 21:02:18,219 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)] === [2022-09-20 21:02:18,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 21:02:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash -735619588, now seen corresponding path program 3 times [2022-09-20 21:02:18,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 21:02:18,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193824848] [2022-09-20 21:02:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 21:02:18,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 21:02:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 21:02:18,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 21:02:18,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 21:02:18,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193824848] [2022-09-20 21:02:18,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193824848] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 21:02:18,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 21:02:18,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 21:02:18,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406095701] [2022-09-20 21:02:18,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 21:02:18,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 21:02:18,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 21:02:18,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 21:02:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 21:02:18,493 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 21:02:18,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 350 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:18,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 21:02:18,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 21:02:18,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 21:02:18,805 INFO L130 PetriNetUnfolder]: 49/293 cut-off events. [2022-09-20 21:02:18,806 INFO L131 PetriNetUnfolder]: For 226/234 co-relation queries the response was YES. [2022-09-20 21:02:18,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 293 events. 49/293 cut-off events. For 226/234 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1352 event pairs, 5 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 690. Up to 54 conditions per place. [2022-09-20 21:02:18,807 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 26 selfloop transitions, 17 changer transitions 32/125 dead transitions. [2022-09-20 21:02:18,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 125 transitions, 640 flow [2022-09-20 21:02:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 21:02:18,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 21:02:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2022-09-20 21:02:18,810 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2022-09-20 21:02:18,810 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 884 transitions. [2022-09-20 21:02:18,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 884 transitions. [2022-09-20 21:02:18,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 21:02:18,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 884 transitions. [2022-09-20 21:02:18,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 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) [2022-09-20 21:02:18,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-09-20 21:02:18,815 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-09-20 21:02:18,815 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 350 flow. Second operand 13 states and 884 transitions. [2022-09-20 21:02:18,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 125 transitions, 640 flow [2022-09-20 21:02:18,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 125 transitions, 572 flow, removed 21 selfloop flow, removed 8 redundant places. [2022-09-20 21:02:18,821 INFO L231 Difference]: Finished difference. Result has 112 places, 89 transitions, 311 flow [2022-09-20 21:02:18,821 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=311, PETRI_PLACES=112, PETRI_TRANSITIONS=89} [2022-09-20 21:02:18,823 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 24 predicate places. [2022-09-20 21:02:18,823 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 89 transitions, 311 flow [2022-09-20 21:02:18,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:18,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 21:02:18,824 INFO L208 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, 1, 1, 1, 1, 1, 1] [2022-09-20 21:02:18,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 21:02:18,824 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)] === [2022-09-20 21:02:18,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 21:02:18,825 INFO L85 PathProgramCache]: Analyzing trace with hash -941078784, now seen corresponding path program 4 times [2022-09-20 21:02:18,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 21:02:18,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473100947] [2022-09-20 21:02:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 21:02:18,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 21:02:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 21:02:19,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 21:02:19,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 21:02:19,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473100947] [2022-09-20 21:02:19,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473100947] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 21:02:19,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 21:02:19,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 21:02:19,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764002382] [2022-09-20 21:02:19,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 21:02:19,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 21:02:19,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 21:02:19,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 21:02:19,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 21:02:19,096 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 21:02:19,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 89 transitions, 311 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:19,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 21:02:19,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 21:02:19,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 21:02:19,423 INFO L130 PetriNetUnfolder]: 18/184 cut-off events. [2022-09-20 21:02:19,424 INFO L131 PetriNetUnfolder]: For 101/101 co-relation queries the response was YES. [2022-09-20 21:02:19,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 184 events. 18/184 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 629 event pairs, 3 based on Foata normal form. 1/184 useless extension candidates. Maximal degree in co-relation 388. Up to 32 conditions per place. [2022-09-20 21:02:19,425 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 28 selfloop transitions, 15 changer transitions 16/109 dead transitions. [2022-09-20 21:02:19,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 109 transitions, 512 flow [2022-09-20 21:02:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-20 21:02:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-09-20 21:02:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 940 transitions. [2022-09-20 21:02:19,427 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2022-09-20 21:02:19,427 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 940 transitions. [2022-09-20 21:02:19,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 940 transitions. [2022-09-20 21:02:19,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 21:02:19,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 940 transitions. [2022-09-20 21:02:19,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 67.14285714285714) internal successors, (940), 14 states have internal predecessors, (940), 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) [2022-09-20 21:02:19,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 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) [2022-09-20 21:02:19,431 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 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) [2022-09-20 21:02:19,431 INFO L175 Difference]: Start difference. First operand has 112 places, 89 transitions, 311 flow. Second operand 14 states and 940 transitions. [2022-09-20 21:02:19,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 109 transitions, 512 flow [2022-09-20 21:02:19,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 109 transitions, 440 flow, removed 19 selfloop flow, removed 14 redundant places. [2022-09-20 21:02:19,434 INFO L231 Difference]: Finished difference. Result has 106 places, 85 transitions, 267 flow [2022-09-20 21:02:19,434 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=267, PETRI_PLACES=106, PETRI_TRANSITIONS=85} [2022-09-20 21:02:19,435 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2022-09-20 21:02:19,435 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 85 transitions, 267 flow [2022-09-20 21:02:19,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:19,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 21:02:19,436 INFO L208 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, 1, 1, 1, 1, 1, 1] [2022-09-20 21:02:19,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 21:02:19,436 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)] === [2022-09-20 21:02:19,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 21:02:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1594320788, now seen corresponding path program 5 times [2022-09-20 21:02:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 21:02:19,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291206363] [2022-09-20 21:02:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 21:02:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 21:02:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 21:02:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 21:02:19,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 21:02:19,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291206363] [2022-09-20 21:02:19,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291206363] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 21:02:19,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 21:02:19,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 21:02:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553791399] [2022-09-20 21:02:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 21:02:19,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 21:02:19,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 21:02:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 21:02:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 21:02:19,601 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 21:02:19,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 85 transitions, 267 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:19,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 21:02:19,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 21:02:19,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 21:02:19,882 INFO L130 PetriNetUnfolder]: 10/135 cut-off events. [2022-09-20 21:02:19,882 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-09-20 21:02:19,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 135 events. 10/135 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 288 event pairs, 1 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 261. Up to 22 conditions per place. [2022-09-20 21:02:19,883 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 22 selfloop transitions, 6 changer transitions 19/97 dead transitions. [2022-09-20 21:02:19,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 97 transitions, 398 flow [2022-09-20 21:02:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 21:02:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 21:02:19,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 865 transitions. [2022-09-20 21:02:19,885 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7078559738134206 [2022-09-20 21:02:19,885 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 865 transitions. [2022-09-20 21:02:19,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 865 transitions. [2022-09-20 21:02:19,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 21:02:19,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 865 transitions. [2022-09-20 21:02:19,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.53846153846153) internal successors, (865), 13 states have internal predecessors, (865), 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) [2022-09-20 21:02:19,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-09-20 21:02:19,889 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-09-20 21:02:19,889 INFO L175 Difference]: Start difference. First operand has 106 places, 85 transitions, 267 flow. Second operand 13 states and 865 transitions. [2022-09-20 21:02:19,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 97 transitions, 398 flow [2022-09-20 21:02:19,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 334 flow, removed 18 selfloop flow, removed 13 redundant places. [2022-09-20 21:02:19,891 INFO L231 Difference]: Finished difference. Result has 104 places, 78 transitions, 195 flow [2022-09-20 21:02:19,892 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=195, PETRI_PLACES=104, PETRI_TRANSITIONS=78} [2022-09-20 21:02:19,894 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2022-09-20 21:02:19,894 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 78 transitions, 195 flow [2022-09-20 21:02:19,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:19,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 21:02:19,894 INFO L208 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, 1, 1, 1, 1, 1, 1] [2022-09-20 21:02:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 21:02:19,895 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)] === [2022-09-20 21:02:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 21:02:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1584322308, now seen corresponding path program 6 times [2022-09-20 21:02:19,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 21:02:19,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949058760] [2022-09-20 21:02:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 21:02:19,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 21:02:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 21:02:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 21:02:20,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 21:02:20,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949058760] [2022-09-20 21:02:20,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949058760] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 21:02:20,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 21:02:20,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 21:02:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395381499] [2022-09-20 21:02:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 21:02:20,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 21:02:20,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 21:02:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 21:02:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 21:02:20,092 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 21:02:20,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 78 transitions, 195 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:20,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 21:02:20,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 21:02:20,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 21:02:20,440 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-09-20 21:02:20,440 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-09-20 21:02:20,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 81 events. 2/81 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 128. Up to 10 conditions per place. [2022-09-20 21:02:20,441 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-09-20 21:02:20,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 76 transitions, 246 flow [2022-09-20 21:02:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 21:02:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 21:02:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 722 transitions. [2022-09-20 21:02:20,442 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6982591876208898 [2022-09-20 21:02:20,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 722 transitions. [2022-09-20 21:02:20,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 722 transitions. [2022-09-20 21:02:20,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 21:02:20,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 722 transitions. [2022-09-20 21:02:20,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 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) [2022-09-20 21:02:20,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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) [2022-09-20 21:02:20,445 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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) [2022-09-20 21:02:20,445 INFO L175 Difference]: Start difference. First operand has 104 places, 78 transitions, 195 flow. Second operand 11 states and 722 transitions. [2022-09-20 21:02:20,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 76 transitions, 246 flow [2022-09-20 21:02:20,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 76 transitions, 222 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-09-20 21:02:20,446 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2022-09-20 21:02:20,447 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2022-09-20 21:02:20,447 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2022-09-20 21:02:20,447 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2022-09-20 21:02:20,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-09-20 21:02:20,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-09-20 21:02:20,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-09-20 21:02:20,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-09-20 21:02:20,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-09-20 21:02:20,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 21:02:20,450 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-09-20 21:02:20,452 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 21:02:20,452 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 21:02:20,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 09:02:20 BasicIcfg [2022-09-20 21:02:20,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 21:02:20,456 INFO L158 Benchmark]: Toolchain (without parser) took 4663.75ms. Allocated memory was 177.2MB in the beginning and 222.3MB in the end (delta: 45.1MB). Free memory was 147.8MB in the beginning and 122.4MB in the end (delta: 25.5MB). Peak memory consumption was 70.2MB. Max. memory is 8.0GB. [2022-09-20 21:02:20,456 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 21:02:20,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.15ms. Allocated memory is still 177.2MB. Free memory was 147.6MB in the beginning and 147.5MB in the end (delta: 63.6kB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-09-20 21:02:20,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.70ms. Allocated memory is still 177.2MB. Free memory was 147.5MB in the beginning and 145.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 21:02:20,457 INFO L158 Benchmark]: Boogie Preprocessor took 44.64ms. Allocated memory is still 177.2MB. Free memory was 145.9MB in the beginning and 144.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 21:02:20,457 INFO L158 Benchmark]: RCFGBuilder took 319.26ms. Allocated memory is still 177.2MB. Free memory was 144.8MB in the beginning and 131.8MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 21:02:20,458 INFO L158 Benchmark]: TraceAbstraction took 4024.03ms. Allocated memory was 177.2MB in the beginning and 222.3MB in the end (delta: 45.1MB). Free memory was 131.2MB in the beginning and 122.4MB in the end (delta: 8.8MB). Peak memory consumption was 54.8MB. Max. memory is 8.0GB. [2022-09-20 21:02:20,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.15ms. Allocated memory is still 177.2MB. Free memory was 147.6MB in the beginning and 147.5MB in the end (delta: 63.6kB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.70ms. Allocated memory is still 177.2MB. Free memory was 147.5MB in the beginning and 145.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.64ms. Allocated memory is still 177.2MB. Free memory was 145.9MB in the beginning and 144.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 319.26ms. Allocated memory is still 177.2MB. Free memory was 144.8MB in the beginning and 131.8MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4024.03ms. Allocated memory was 177.2MB in the beginning and 222.3MB in the end (delta: 45.1MB). Free memory was 131.2MB in the beginning and 122.4MB in the end (delta: 8.8MB). Peak memory consumption was 54.8MB. 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, 111 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: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231 mSDsluCounter, 360 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 761 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1645 IncrementalHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 79 mSDtfsCounter, 1645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 14 SyntacticMatches, 11 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=2, InterpolantAutomatonStates: 79, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 7272 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! [2022-09-20 21:02:20,472 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...