/usr/bin/java -Xmx16000000000 -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-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 01:09:52,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 01:09:52,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 01:09:52,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 01:09:52,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 01:09:52,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 01:09:52,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 01:09:52,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 01:09:52,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 01:09:52,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 01:09:52,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 01:09:52,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 01:09:52,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 01:09:52,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 01:09:52,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 01:09:52,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 01:09:52,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 01:09:52,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 01:09:52,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 01:09:52,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 01:09:52,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 01:09:52,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 01:09:52,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 01:09:52,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 01:09:52,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 01:09:52,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 01:09:52,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 01:09:52,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 01:09:52,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 01:09:52,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 01:09:52,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 01:09:52,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 01:09:52,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 01:09:52,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 01:09:52,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 01:09:52,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 01:09:52,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 01:09:52,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 01:09:52,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 01:09:52,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 01:09:52,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 01:09:52,838 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 [2022-01-19 01:09:52,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 01:09:52,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 01:09:52,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 01:09:52,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 01:09:52,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 01:09:52,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 01:09:52,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 01:09:52,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 01:09:52,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 01:09:52,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 01:09:52,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 01:09:52,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 01:09:52,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 01:09:52,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 01:09:52,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 01:09:52,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 01:09:52,865 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 01:09:52,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 01:09:52,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 01:09:53,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 01:09:53,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 01:09:53,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 01:09:53,077 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 01:09:53,079 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 01:09:53,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-01-19 01:09:53,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849bcd39d/6d3d8d1897e14473845aee6b02150618/FLAG8332af8b5 [2022-01-19 01:09:53,440 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 01:09:53,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-01-19 01:09:53,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849bcd39d/6d3d8d1897e14473845aee6b02150618/FLAG8332af8b5 [2022-01-19 01:09:53,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849bcd39d/6d3d8d1897e14473845aee6b02150618 [2022-01-19 01:09:53,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 01:09:53,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 01:09:53,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 01:09:53,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 01:09:53,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 01:09:53,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221625a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53, skipping insertion in model container [2022-01-19 01:09:53,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 01:09:53,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 01:09:53,684 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-bluetooth.wvr.c[3134,3147] [2022-01-19 01:09:53,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 01:09:53,696 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 01:09:53,725 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-bluetooth.wvr.c[3134,3147] [2022-01-19 01:09:53,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 01:09:53,736 INFO L208 MainTranslator]: Completed translation [2022-01-19 01:09:53,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53 WrapperNode [2022-01-19 01:09:53,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 01:09:53,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 01:09:53,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 01:09:53,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 01:09:53,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,777 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-01-19 01:09:53,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 01:09:53,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 01:09:53,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 01:09:53,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 01:09:53,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 01:09:53,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 01:09:53,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 01:09:53,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 01:09:53,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (1/1) ... [2022-01-19 01:09:53,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 01:09:53,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:09:53,840 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) [2022-01-19 01:09:53,846 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 [2022-01-19 01:09:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 01:09:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 01:09:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 01:09:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 01:09:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 01:09:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 01:09:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 01:09:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 01:09:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 01:09:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 01:09:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 01:09:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 01:09:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 01:09:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 01:09:53,867 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 01:09:53,960 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 01:09:53,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 01:09:54,123 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 01:09:54,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 01:09:54,151 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 01:09:54,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:09:54 BoogieIcfgContainer [2022-01-19 01:09:54,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 01:09:54,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 01:09:54,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 01:09:54,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 01:09:54,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:09:53" (1/3) ... [2022-01-19 01:09:54,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5ec181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:09:54, skipping insertion in model container [2022-01-19 01:09:54,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:53" (2/3) ... [2022-01-19 01:09:54,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5ec181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:09:54, skipping insertion in model container [2022-01-19 01:09:54,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:09:54" (3/3) ... [2022-01-19 01:09:54,158 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-01-19 01:09:54,162 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 01:09:54,162 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 01:09:54,162 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 01:09:54,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,190 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,191 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,191 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,191 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,191 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,192 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,192 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,198 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,198 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:09:54,201 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 01:09:54,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 01:09:54,233 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 01:09:54,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 01:09:54,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2022-01-19 01:09:54,303 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2022-01-19 01:09:54,304 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 01:09:54,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-01-19 01:09:54,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 139 transitions, 294 flow [2022-01-19 01:09:54,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 128 transitions, 268 flow [2022-01-19 01:09:54,346 INFO L129 PetriNetUnfolder]: 9/127 cut-off events. [2022-01-19 01:09:54,346 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 01:09:54,347 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:09:54,347 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:09:54,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 01:09:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:09:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash -832133839, now seen corresponding path program 1 times [2022-01-19 01:09:54,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:09:54,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762606108] [2022-01-19 01:09:54,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:09:54,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:09:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:09:54,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:09:54,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:09:54,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762606108] [2022-01-19 01:09:54,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762606108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:09:54,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:09:54,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 01:09:54,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671913878] [2022-01-19 01:09:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:09:54,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 01:09:54,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:09:54,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 01:09:54,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 01:09:54,734 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 139 [2022-01-19 01:09:54,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2022-01-19 01:09:54,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:09:54,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 139 [2022-01-19 01:09:54,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:09:54,870 INFO L129 PetriNetUnfolder]: 26/216 cut-off events. [2022-01-19 01:09:54,870 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-01-19 01:09:54,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 216 events. 26/216 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 510 event pairs, 8 based on Foata normal form. 11/208 useless extension candidates. Maximal degree in co-relation 167. Up to 54 conditions per place. [2022-01-19 01:09:54,872 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 42 selfloop transitions, 7 changer transitions 7/129 dead transitions. [2022-01-19 01:09:54,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 388 flow [2022-01-19 01:09:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 01:09:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 01:09:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2022-01-19 01:09:54,893 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6738609112709832 [2022-01-19 01:09:54,894 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2022-01-19 01:09:54,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2022-01-19 01:09:54,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:09:54,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2022-01-19 01:09:54,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 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) [2022-01-19 01:09:54,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-01-19 01:09:54,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-01-19 01:09:54,915 INFO L186 Difference]: Start difference. First operand has 126 places, 128 transitions, 268 flow. Second operand 6 states and 562 transitions. [2022-01-19 01:09:54,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 388 flow [2022-01-19 01:09:54,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 129 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 01:09:54,921 INFO L242 Difference]: Finished difference. Result has 128 places, 116 transitions, 261 flow [2022-01-19 01:09:54,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=128, PETRI_TRANSITIONS=116} [2022-01-19 01:09:54,925 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 2 predicate places. [2022-01-19 01:09:54,925 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 116 transitions, 261 flow [2022-01-19 01:09:54,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2022-01-19 01:09:54,925 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:09:54,926 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:09:54,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 01:09:54,926 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 01:09:54,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:09:54,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1917017462, now seen corresponding path program 1 times [2022-01-19 01:09:54,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:09:54,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131915946] [2022-01-19 01:09:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:09:54,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:09:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:09:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:09:55,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:09:55,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131915946] [2022-01-19 01:09:55,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131915946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:09:55,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:09:55,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:09:55,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584478883] [2022-01-19 01:09:55,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:09:55,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:09:55,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:09:55,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:09:55,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:09:55,110 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-01-19 01:09:55,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 116 transitions, 261 flow. Second operand has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 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) [2022-01-19 01:09:55,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:09:55,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-01-19 01:09:55,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:09:55,316 INFO L129 PetriNetUnfolder]: 57/334 cut-off events. [2022-01-19 01:09:55,316 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-01-19 01:09:55,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 334 events. 57/334 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1307 event pairs, 29 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 270. Up to 87 conditions per place. [2022-01-19 01:09:55,321 INFO L132 encePairwiseOnDemand]: 127/139 looper letters, 61 selfloop transitions, 17 changer transitions 0/148 dead transitions. [2022-01-19 01:09:55,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 148 transitions, 489 flow [2022-01-19 01:09:55,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 01:09:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 01:09:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1016 transitions. [2022-01-19 01:09:55,323 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6091127098321343 [2022-01-19 01:09:55,323 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1016 transitions. [2022-01-19 01:09:55,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1016 transitions. [2022-01-19 01:09:55,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:09:55,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1016 transitions. [2022-01-19 01:09:55,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 84.66666666666667) internal successors, (1016), 12 states have internal predecessors, (1016), 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) [2022-01-19 01:09:55,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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) [2022-01-19 01:09:55,330 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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) [2022-01-19 01:09:55,330 INFO L186 Difference]: Start difference. First operand has 128 places, 116 transitions, 261 flow. Second operand 12 states and 1016 transitions. [2022-01-19 01:09:55,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 148 transitions, 489 flow [2022-01-19 01:09:55,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 148 transitions, 480 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 01:09:55,335 INFO L242 Difference]: Finished difference. Result has 131 places, 128 transitions, 333 flow [2022-01-19 01:09:55,336 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=333, PETRI_PLACES=131, PETRI_TRANSITIONS=128} [2022-01-19 01:09:55,336 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2022-01-19 01:09:55,336 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 128 transitions, 333 flow [2022-01-19 01:09:55,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 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) [2022-01-19 01:09:55,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:09:55,337 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:09:55,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 01:09:55,338 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 01:09:55,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:09:55,338 INFO L85 PathProgramCache]: Analyzing trace with hash -815040470, now seen corresponding path program 2 times [2022-01-19 01:09:55,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:09:55,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621560288] [2022-01-19 01:09:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:09:55,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:09:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:09:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:09:55,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:09:55,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621560288] [2022-01-19 01:09:55,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621560288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:09:55,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:09:55,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 01:09:55,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493617085] [2022-01-19 01:09:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:09:55,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 01:09:55,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:09:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 01:09:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-19 01:09:55,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 139 [2022-01-19 01:09:55,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 128 transitions, 333 flow. Second operand has 10 states, 10 states have (on average 85.2) internal successors, (852), 10 states have internal predecessors, (852), 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) [2022-01-19 01:09:55,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:09:55,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 139 [2022-01-19 01:09:55,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:09:55,690 INFO L129 PetriNetUnfolder]: 59/400 cut-off events. [2022-01-19 01:09:55,690 INFO L130 PetriNetUnfolder]: For 99/101 co-relation queries the response was YES. [2022-01-19 01:09:55,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 400 events. 59/400 cut-off events. For 99/101 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1904 event pairs, 4 based on Foata normal form. 4/389 useless extension candidates. Maximal degree in co-relation 500. Up to 71 conditions per place. [2022-01-19 01:09:55,692 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 54 selfloop transitions, 31 changer transitions 0/159 dead transitions. [2022-01-19 01:09:55,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 159 transitions, 606 flow [2022-01-19 01:09:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:09:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:09:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 964 transitions. [2022-01-19 01:09:55,694 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6304774362328319 [2022-01-19 01:09:55,695 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 964 transitions. [2022-01-19 01:09:55,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 964 transitions. [2022-01-19 01:09:55,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:09:55,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 964 transitions. [2022-01-19 01:09:55,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.63636363636364) internal successors, (964), 11 states have internal predecessors, (964), 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) [2022-01-19 01:09:55,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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) [2022-01-19 01:09:55,700 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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) [2022-01-19 01:09:55,700 INFO L186 Difference]: Start difference. First operand has 131 places, 128 transitions, 333 flow. Second operand 11 states and 964 transitions. [2022-01-19 01:09:55,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 159 transitions, 606 flow [2022-01-19 01:09:55,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 159 transitions, 600 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 01:09:55,706 INFO L242 Difference]: Finished difference. Result has 140 places, 140 transitions, 461 flow [2022-01-19 01:09:55,706 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=461, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2022-01-19 01:09:55,708 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2022-01-19 01:09:55,708 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 461 flow [2022-01-19 01:09:55,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.2) internal successors, (852), 10 states have internal predecessors, (852), 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) [2022-01-19 01:09:55,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:09:55,709 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:09:55,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 01:09:55,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 01:09:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:09:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash -349745785, now seen corresponding path program 1 times [2022-01-19 01:09:55,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:09:55,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740101342] [2022-01-19 01:09:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:09:55,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:09:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:09:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:09:55,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:09:55,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740101342] [2022-01-19 01:09:55,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740101342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:09:55,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:09:55,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 01:09:55,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41885957] [2022-01-19 01:09:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:09:55,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 01:09:55,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:09:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 01:09:55,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-01-19 01:09:55,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-01-19 01:09:55,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 461 flow. Second operand has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 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) [2022-01-19 01:09:55,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:09:55,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-01-19 01:09:55,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:09:56,063 INFO L129 PetriNetUnfolder]: 57/381 cut-off events. [2022-01-19 01:09:56,063 INFO L130 PetriNetUnfolder]: For 218/223 co-relation queries the response was YES. [2022-01-19 01:09:56,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 381 events. 57/381 cut-off events. For 218/223 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1665 event pairs, 16 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 649. Up to 151 conditions per place. [2022-01-19 01:09:56,065 INFO L132 encePairwiseOnDemand]: 126/139 looper letters, 58 selfloop transitions, 19 changer transitions 2/149 dead transitions. [2022-01-19 01:09:56,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 149 transitions, 649 flow [2022-01-19 01:09:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 01:09:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 01:09:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 923 transitions. [2022-01-19 01:09:56,068 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6036625245258339 [2022-01-19 01:09:56,068 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 923 transitions. [2022-01-19 01:09:56,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 923 transitions. [2022-01-19 01:09:56,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:09:56,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 923 transitions. [2022-01-19 01:09:56,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.9090909090909) internal successors, (923), 11 states have internal predecessors, (923), 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) [2022-01-19 01:09:56,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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) [2022-01-19 01:09:56,072 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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) [2022-01-19 01:09:56,072 INFO L186 Difference]: Start difference. First operand has 140 places, 140 transitions, 461 flow. Second operand 11 states and 923 transitions. [2022-01-19 01:09:56,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 149 transitions, 649 flow [2022-01-19 01:09:56,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 149 transitions, 636 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 01:09:56,080 INFO L242 Difference]: Finished difference. Result has 149 places, 142 transitions, 509 flow [2022-01-19 01:09:56,080 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=509, PETRI_PLACES=149, PETRI_TRANSITIONS=142} [2022-01-19 01:09:56,081 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 23 predicate places. [2022-01-19 01:09:56,081 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 142 transitions, 509 flow [2022-01-19 01:09:56,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 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) [2022-01-19 01:09:56,082 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:09:56,082 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:09:56,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 01:09:56,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 01:09:56,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:09:56,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1956691305, now seen corresponding path program 2 times [2022-01-19 01:09:56,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:09:56,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100050603] [2022-01-19 01:09:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:09:56,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:09:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:09:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:09:56,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:09:56,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100050603] [2022-01-19 01:09:56,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100050603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:09:56,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:09:56,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 01:09:56,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228552384] [2022-01-19 01:09:56,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:09:56,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 01:09:56,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:09:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 01:09:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-01-19 01:09:56,260 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-01-19 01:09:56,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 142 transitions, 509 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 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) [2022-01-19 01:09:56,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:09:56,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-01-19 01:09:56,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:09:56,395 INFO L129 PetriNetUnfolder]: 60/404 cut-off events. [2022-01-19 01:09:56,395 INFO L130 PetriNetUnfolder]: For 277/282 co-relation queries the response was YES. [2022-01-19 01:09:56,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 404 events. 60/404 cut-off events. For 277/282 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1872 event pairs, 17 based on Foata normal form. 3/401 useless extension candidates. Maximal degree in co-relation 698. Up to 148 conditions per place. [2022-01-19 01:09:56,397 INFO L132 encePairwiseOnDemand]: 126/139 looper letters, 56 selfloop transitions, 17 changer transitions 10/153 dead transitions. [2022-01-19 01:09:56,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 153 transitions, 717 flow [2022-01-19 01:09:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 01:09:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 01:09:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1005 transitions. [2022-01-19 01:09:56,400 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6025179856115108 [2022-01-19 01:09:56,400 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1005 transitions. [2022-01-19 01:09:56,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1005 transitions. [2022-01-19 01:09:56,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:09:56,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1005 transitions. [2022-01-19 01:09:56,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 83.75) internal successors, (1005), 12 states have internal predecessors, (1005), 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) [2022-01-19 01:09:56,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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) [2022-01-19 01:09:56,405 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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) [2022-01-19 01:09:56,405 INFO L186 Difference]: Start difference. First operand has 149 places, 142 transitions, 509 flow. Second operand 12 states and 1005 transitions. [2022-01-19 01:09:56,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 153 transitions, 717 flow [2022-01-19 01:09:56,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 153 transitions, 688 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-01-19 01:09:56,408 INFO L242 Difference]: Finished difference. Result has 154 places, 140 transitions, 504 flow [2022-01-19 01:09:56,408 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=154, PETRI_TRANSITIONS=140} [2022-01-19 01:09:56,409 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 28 predicate places. [2022-01-19 01:09:56,409 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 140 transitions, 504 flow [2022-01-19 01:09:56,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 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) [2022-01-19 01:09:56,410 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:09:56,410 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:09:56,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 01:09:56,410 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 01:09:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:09:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1239625413, now seen corresponding path program 3 times [2022-01-19 01:09:56,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:09:56,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622046292] [2022-01-19 01:09:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:09:56,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:09:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:09:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:09:56,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:09:56,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622046292] [2022-01-19 01:09:56,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622046292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:09:56,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:09:56,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 01:09:56,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538943663] [2022-01-19 01:09:56,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:09:56,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 01:09:56,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:09:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 01:09:56,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-19 01:09:56,488 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2022-01-19 01:09:56,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 140 transitions, 504 flow. Second operand has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 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) [2022-01-19 01:09:56,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:09:56,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2022-01-19 01:09:56,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:09:56,611 INFO L129 PetriNetUnfolder]: 31/320 cut-off events. [2022-01-19 01:09:56,611 INFO L130 PetriNetUnfolder]: For 158/163 co-relation queries the response was YES. [2022-01-19 01:09:56,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 320 events. 31/320 cut-off events. For 158/163 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1387 event pairs, 8 based on Foata normal form. 4/316 useless extension candidates. Maximal degree in co-relation 474. Up to 66 conditions per place. [2022-01-19 01:09:56,613 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 0 selfloop transitions, 0 changer transitions 140/140 dead transitions. [2022-01-19 01:09:56,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 140 transitions, 637 flow [2022-01-19 01:09:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 01:09:56,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 01:09:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 785 transitions. [2022-01-19 01:09:56,614 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.627498001598721 [2022-01-19 01:09:56,615 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 785 transitions. [2022-01-19 01:09:56,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 785 transitions. [2022-01-19 01:09:56,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:09:56,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 785 transitions. [2022-01-19 01:09:56,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.22222222222223) internal successors, (785), 9 states have internal predecessors, (785), 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) [2022-01-19 01:09:56,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-01-19 01:09:56,618 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-01-19 01:09:56,618 INFO L186 Difference]: Start difference. First operand has 154 places, 140 transitions, 504 flow. Second operand 9 states and 785 transitions. [2022-01-19 01:09:56,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 140 transitions, 637 flow [2022-01-19 01:09:56,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 140 transitions, 599 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-01-19 01:09:56,621 INFO L242 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2022-01-19 01:09:56,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2022-01-19 01:09:56,622 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 19 predicate places. [2022-01-19 01:09:56,622 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2022-01-19 01:09:56,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 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) [2022-01-19 01:09:56,624 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 01:09:56,624 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 01:09:56,624 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 01:09:56,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 01:09:56,627 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1] [2022-01-19 01:09:56,628 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 01:09:56,628 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 01:09:56,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 01:09:56 BasicIcfg [2022-01-19 01:09:56,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 01:09:56,631 INFO L158 Benchmark]: Toolchain (without parser) took 3166.12ms. Allocated memory was 419.4MB in the beginning and 660.6MB in the end (delta: 241.2MB). Free memory was 363.5MB in the beginning and 291.4MB in the end (delta: 72.1MB). Peak memory consumption was 312.3MB. Max. memory is 16.0GB. [2022-01-19 01:09:56,631 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 419.4MB. Free memory was 380.7MB in the beginning and 380.6MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 01:09:56,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.10ms. Allocated memory was 419.4MB in the beginning and 660.6MB in the end (delta: 241.2MB). Free memory was 363.3MB in the beginning and 630.1MB in the end (delta: -266.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. [2022-01-19 01:09:56,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.19ms. Allocated memory is still 660.6MB. Free memory was 630.1MB in the beginning and 628.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 01:09:56,632 INFO L158 Benchmark]: Boogie Preprocessor took 30.37ms. Allocated memory is still 660.6MB. Free memory was 628.0MB in the beginning and 627.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 01:09:56,632 INFO L158 Benchmark]: RCFGBuilder took 344.15ms. Allocated memory is still 660.6MB. Free memory was 627.0MB in the beginning and 607.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 01:09:56,632 INFO L158 Benchmark]: TraceAbstraction took 2475.69ms. Allocated memory is still 660.6MB. Free memory was 606.0MB in the beginning and 291.4MB in the end (delta: 314.6MB). Peak memory consumption was 314.6MB. Max. memory is 16.0GB. [2022-01-19 01:09:56,633 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 419.4MB. Free memory was 380.7MB in the beginning and 380.6MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 272.10ms. Allocated memory was 419.4MB in the beginning and 660.6MB in the end (delta: 241.2MB). Free memory was 363.3MB in the beginning and 630.1MB in the end (delta: -266.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.19ms. Allocated memory is still 660.6MB. Free memory was 630.1MB in the beginning and 628.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.37ms. Allocated memory is still 660.6MB. Free memory was 628.0MB in the beginning and 627.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 344.15ms. Allocated memory is still 660.6MB. Free memory was 627.0MB in the beginning and 607.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 2475.69ms. Allocated memory is still 660.6MB. Free memory was 606.0MB in the beginning and 291.4MB in the end (delta: 314.6MB). Peak memory consumption was 314.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 115]: 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 5 procedures, 152 locations, 3 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: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 447 mSDsluCounter, 651 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 619 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 817 IncrementalHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 198 mSDtfsCounter, 817 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=4, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 2308 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! [2022-01-19 01:09:56,657 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...