/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 04:27:03,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 04:27:03,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 04:27:03,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 04:27:03,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 04:27:03,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 04:27:03,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 04:27:03,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 04:27:03,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 04:27:03,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 04:27:03,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 04:27:03,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 04:27:03,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 04:27:03,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 04:27:03,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 04:27:03,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 04:27:03,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 04:27:03,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 04:27:03,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 04:27:03,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 04:27:03,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 04:27:03,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 04:27:03,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 04:27:03,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 04:27:03,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 04:27:03,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 04:27:03,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 04:27:03,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 04:27:03,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 04:27:03,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 04:27:03,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 04:27:03,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 04:27:03,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 04:27:03,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 04:27:03,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 04:27:03,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 04:27:03,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 04:27:03,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 04:27:03,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 04:27:03,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 04:27:03,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 04:27:03,776 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-Before.epf [2022-01-19 04:27:03,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 04:27:03,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 04:27:03,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 04:27:03,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 04:27:03,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 04:27:03,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 04:27:03,801 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 04:27:03,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 04:27:03,801 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 04:27:03,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 04:27:03,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 04:27:03,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 04:27:03,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 04:27:03,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 04:27:03,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 04:27:03,803 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 04:27:03,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 04:27:03,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 04:27:03,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 04:27:03,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 04:27:03,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 04:27:03,989 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 04:27:03,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2022-01-19 04:27:04,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46988e06/bbbd668ed26b4bbcb116ea6e4ee574cd/FLAGaeb5badff [2022-01-19 04:27:04,425 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 04:27:04,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2022-01-19 04:27:04,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46988e06/bbbd668ed26b4bbcb116ea6e4ee574cd/FLAGaeb5badff [2022-01-19 04:27:04,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46988e06/bbbd668ed26b4bbcb116ea6e4ee574cd [2022-01-19 04:27:04,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 04:27:04,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 04:27:04,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 04:27:04,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 04:27:04,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 04:27:04,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 04:27:04" (1/1) ... [2022-01-19 04:27:04,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec33b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:04, skipping insertion in model container [2022-01-19 04:27:04,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 04:27:04" (1/1) ... [2022-01-19 04:27:04,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 04:27:04,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 04:27:05,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30454,30467] [2022-01-19 04:27:05,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30634,30647] [2022-01-19 04:27:05,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 04:27:05,103 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 04:27:05,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30454,30467] [2022-01-19 04:27:05,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30634,30647] [2022-01-19 04:27:05,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 04:27:05,158 INFO L208 MainTranslator]: Completed translation [2022-01-19 04:27:05,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05 WrapperNode [2022-01-19 04:27:05,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 04:27:05,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 04:27:05,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 04:27:05,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 04:27:05,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,186 INFO L137 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 128 [2022-01-19 04:27:05,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 04:27:05,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 04:27:05,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 04:27:05,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 04:27:05,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 04:27:05,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 04:27:05,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 04:27:05,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 04:27:05,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (1/1) ... [2022-01-19 04:27:05,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 04:27:05,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 04:27:05,229 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 04:27:05,250 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 04:27:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-01-19 04:27:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2022-01-19 04:27:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-19 04:27:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 04:27:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 04:27:05,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 04:27:05,256 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 04:27:05,340 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 04:27:05,341 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 04:27:05,514 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 04:27:05,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 04:27:05,562 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-19 04:27:05,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 04:27:05 BoogieIcfgContainer [2022-01-19 04:27:05,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 04:27:05,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 04:27:05,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 04:27:05,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 04:27:05,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 04:27:04" (1/3) ... [2022-01-19 04:27:05,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f79035c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 04:27:05, skipping insertion in model container [2022-01-19 04:27:05,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:27:05" (2/3) ... [2022-01-19 04:27:05,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f79035c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 04:27:05, skipping insertion in model container [2022-01-19 04:27:05,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 04:27:05" (3/3) ... [2022-01-19 04:27:05,570 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2022-01-19 04:27:05,573 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 04:27:05,574 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-19 04:27:05,574 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 04:27:05,596 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,597 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,598 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,599 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,599 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,599 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,599 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,599 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,600 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,601 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,601 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,601 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,601 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,601 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,601 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,602 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,602 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,602 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,602 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,602 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,603 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,604 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,604 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,604 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,604 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,604 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,605 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,605 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,605 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,605 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,605 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,605 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,606 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,607 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,607 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,607 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,627 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,627 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,627 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,627 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,628 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,628 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,628 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,628 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,628 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,628 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,630 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,631 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,631 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,631 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,631 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,631 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,632 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,635 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,635 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,635 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,635 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,635 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,636 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:27:05,636 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 04:27:05,683 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 04:27:05,690 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 04:27:05,690 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 04:27:05,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 91 transitions, 197 flow [2022-01-19 04:27:05,759 INFO L129 PetriNetUnfolder]: 8/100 cut-off events. [2022-01-19 04:27:05,759 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:27:05,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 100 events. 8/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 153 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2022-01-19 04:27:05,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 91 transitions, 197 flow [2022-01-19 04:27:05,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 89 transitions, 189 flow [2022-01-19 04:27:05,780 INFO L129 PetriNetUnfolder]: 3/53 cut-off events. [2022-01-19 04:27:05,781 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:27:05,781 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:27:05,781 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] [2022-01-19 04:27:05,782 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:27:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:27:05,787 INFO L85 PathProgramCache]: Analyzing trace with hash 542323430, now seen corresponding path program 1 times [2022-01-19 04:27:05,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:27:05,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93181244] [2022-01-19 04:27:05,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:27:05,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:27:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:27:06,000 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 04:27:06,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:27:06,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93181244] [2022-01-19 04:27:06,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93181244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:27:06,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:27:06,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:27:06,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90227888] [2022-01-19 04:27:06,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:27:06,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 04:27:06,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:27:06,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 04:27:06,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 04:27:06,029 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 91 [2022-01-19 04:27:06,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 89 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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 04:27:06,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:27:06,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 91 [2022-01-19 04:27:06,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:27:06,257 INFO L129 PetriNetUnfolder]: 769/1730 cut-off events. [2022-01-19 04:27:06,257 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-01-19 04:27:06,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3052 conditions, 1730 events. 769/1730 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 12130 event pairs, 147 based on Foata normal form. 773/2393 useless extension candidates. Maximal degree in co-relation 3020. Up to 427 conditions per place. [2022-01-19 04:27:06,276 INFO L132 encePairwiseOnDemand]: 76/91 looper letters, 48 selfloop transitions, 12 changer transitions 0/113 dead transitions. [2022-01-19 04:27:06,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 113 transitions, 366 flow [2022-01-19 04:27:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 04:27:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 04:27:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 398 transitions. [2022-01-19 04:27:06,290 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8747252747252747 [2022-01-19 04:27:06,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 398 transitions. [2022-01-19 04:27:06,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 398 transitions. [2022-01-19 04:27:06,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:27:06,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 398 transitions. [2022-01-19 04:27:06,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 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 04:27:06,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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 04:27:06,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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 04:27:06,307 INFO L186 Difference]: Start difference. First operand has 91 places, 89 transitions, 189 flow. Second operand 5 states and 398 transitions. [2022-01-19 04:27:06,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 113 transitions, 366 flow [2022-01-19 04:27:06,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 113 transitions, 363 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 04:27:06,317 INFO L242 Difference]: Finished difference. Result has 86 places, 83 transitions, 247 flow [2022-01-19 04:27:06,319 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=86, PETRI_TRANSITIONS=83} [2022-01-19 04:27:06,323 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2022-01-19 04:27:06,323 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 83 transitions, 247 flow [2022-01-19 04:27:06,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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 04:27:06,324 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:27:06,324 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] [2022-01-19 04:27:06,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 04:27:06,325 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:27:06,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:27:06,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1281600319, now seen corresponding path program 1 times [2022-01-19 04:27:06,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:27:06,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448086814] [2022-01-19 04:27:06,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:27:06,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:27:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:27:06,435 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 04:27:06,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:27:06,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448086814] [2022-01-19 04:27:06,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448086814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:27:06,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:27:06,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:27:06,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314827378] [2022-01-19 04:27:06,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:27:06,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:27:06,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:27:06,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:27:06,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:27:06,440 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 91 [2022-01-19 04:27:06,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 04:27:06,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:27:06,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 91 [2022-01-19 04:27:06,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:27:06,676 INFO L129 PetriNetUnfolder]: 337/1034 cut-off events. [2022-01-19 04:27:06,676 INFO L130 PetriNetUnfolder]: For 329/335 co-relation queries the response was YES. [2022-01-19 04:27:06,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1034 events. 337/1034 cut-off events. For 329/335 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 6845 event pairs, 63 based on Foata normal form. 93/1079 useless extension candidates. Maximal degree in co-relation 2031. Up to 159 conditions per place. [2022-01-19 04:27:06,687 INFO L132 encePairwiseOnDemand]: 75/91 looper letters, 44 selfloop transitions, 28 changer transitions 4/128 dead transitions. [2022-01-19 04:27:06,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 128 transitions, 522 flow [2022-01-19 04:27:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:27:06,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:27:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 572 transitions. [2022-01-19 04:27:06,689 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2022-01-19 04:27:06,689 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 572 transitions. [2022-01-19 04:27:06,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 572 transitions. [2022-01-19 04:27:06,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:27:06,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 572 transitions. [2022-01-19 04:27:06,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.5) internal successors, (572), 8 states have internal predecessors, (572), 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 04:27:06,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 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 04:27:06,693 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 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 04:27:06,693 INFO L186 Difference]: Start difference. First operand has 86 places, 83 transitions, 247 flow. Second operand 8 states and 572 transitions. [2022-01-19 04:27:06,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 128 transitions, 522 flow [2022-01-19 04:27:06,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 518 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-01-19 04:27:06,700 INFO L242 Difference]: Finished difference. Result has 98 places, 99 transitions, 426 flow [2022-01-19 04:27:06,700 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=426, PETRI_PLACES=98, PETRI_TRANSITIONS=99} [2022-01-19 04:27:06,701 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 7 predicate places. [2022-01-19 04:27:06,701 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 99 transitions, 426 flow [2022-01-19 04:27:06,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 04:27:06,702 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:27:06,702 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] [2022-01-19 04:27:06,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 04:27:06,703 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:27:06,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:27:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1259715748, now seen corresponding path program 1 times [2022-01-19 04:27:06,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:27:06,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471247776] [2022-01-19 04:27:06,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:27:06,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:27:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:27:06,787 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 04:27:06,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:27:06,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471247776] [2022-01-19 04:27:06,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471247776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:27:06,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:27:06,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:27:06,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820882199] [2022-01-19 04:27:06,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:27:06,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 04:27:06,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:27:06,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 04:27:06,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 04:27:06,789 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 91 [2022-01-19 04:27:06,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 99 transitions, 426 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 04:27:06,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:27:06,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 91 [2022-01-19 04:27:06,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:27:06,962 INFO L129 PetriNetUnfolder]: 292/923 cut-off events. [2022-01-19 04:27:06,962 INFO L130 PetriNetUnfolder]: For 1528/1570 co-relation queries the response was YES. [2022-01-19 04:27:06,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2934 conditions, 923 events. 292/923 cut-off events. For 1528/1570 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5919 event pairs, 87 based on Foata normal form. 28/896 useless extension candidates. Maximal degree in co-relation 2889. Up to 320 conditions per place. [2022-01-19 04:27:06,967 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 50 selfloop transitions, 11 changer transitions 9/123 dead transitions. [2022-01-19 04:27:06,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 123 transitions, 721 flow [2022-01-19 04:27:06,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 04:27:06,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 04:27:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 360 transitions. [2022-01-19 04:27:06,968 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7912087912087912 [2022-01-19 04:27:06,968 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 360 transitions. [2022-01-19 04:27:06,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 360 transitions. [2022-01-19 04:27:06,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:27:06,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 360 transitions. [2022-01-19 04:27:06,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 04:27:06,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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 04:27:06,971 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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 04:27:06,971 INFO L186 Difference]: Start difference. First operand has 98 places, 99 transitions, 426 flow. Second operand 5 states and 360 transitions. [2022-01-19 04:27:06,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 123 transitions, 721 flow [2022-01-19 04:27:06,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 123 transitions, 714 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-01-19 04:27:06,979 INFO L242 Difference]: Finished difference. Result has 103 places, 97 transitions, 450 flow [2022-01-19 04:27:06,979 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=450, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2022-01-19 04:27:06,980 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 12 predicate places. [2022-01-19 04:27:06,980 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 450 flow [2022-01-19 04:27:06,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 04:27:06,981 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:27:06,981 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] [2022-01-19 04:27:06,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 04:27:06,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:27:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:27:06,981 INFO L85 PathProgramCache]: Analyzing trace with hash 711620566, now seen corresponding path program 1 times [2022-01-19 04:27:06,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:27:06,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331767450] [2022-01-19 04:27:06,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:27:06,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:27:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:27:07,057 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 04:27:07,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:27:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331767450] [2022-01-19 04:27:07,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331767450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:27:07,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:27:07,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 04:27:07,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409497557] [2022-01-19 04:27:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:27:07,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 04:27:07,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:27:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 04:27:07,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 04:27:07,062 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-01-19 04:27:07,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 450 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 04:27:07,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:27:07,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-01-19 04:27:07,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:27:07,182 INFO L129 PetriNetUnfolder]: 376/1208 cut-off events. [2022-01-19 04:27:07,183 INFO L130 PetriNetUnfolder]: For 1827/1864 co-relation queries the response was YES. [2022-01-19 04:27:07,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3588 conditions, 1208 events. 376/1208 cut-off events. For 1827/1864 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8769 event pairs, 104 based on Foata normal form. 31/1199 useless extension candidates. Maximal degree in co-relation 3543. Up to 446 conditions per place. [2022-01-19 04:27:07,191 INFO L132 encePairwiseOnDemand]: 87/91 looper letters, 42 selfloop transitions, 3 changer transitions 6/115 dead transitions. [2022-01-19 04:27:07,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 115 transitions, 649 flow [2022-01-19 04:27:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 04:27:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 04:27:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2022-01-19 04:27:07,192 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2022-01-19 04:27:07,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2022-01-19 04:27:07,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2022-01-19 04:27:07,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:27:07,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2022-01-19 04:27:07,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 04:27:07,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 04:27:07,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 04:27:07,194 INFO L186 Difference]: Start difference. First operand has 103 places, 97 transitions, 450 flow. Second operand 3 states and 228 transitions. [2022-01-19 04:27:07,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 115 transitions, 649 flow [2022-01-19 04:27:07,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 115 transitions, 634 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-01-19 04:27:07,200 INFO L242 Difference]: Finished difference. Result has 106 places, 92 transitions, 405 flow [2022-01-19 04:27:07,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=106, PETRI_TRANSITIONS=92} [2022-01-19 04:27:07,201 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 15 predicate places. [2022-01-19 04:27:07,201 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 92 transitions, 405 flow [2022-01-19 04:27:07,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 04:27:07,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:27:07,202 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] [2022-01-19 04:27:07,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 04:27:07,202 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:27:07,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:27:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1207789359, now seen corresponding path program 1 times [2022-01-19 04:27:07,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:27:07,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866959694] [2022-01-19 04:27:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:27:07,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:27:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:27:07,245 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 04:27:07,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:27:07,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866959694] [2022-01-19 04:27:07,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866959694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:27:07,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:27:07,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:27:07,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326251080] [2022-01-19 04:27:07,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:27:07,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:27:07,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:27:07,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:27:07,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:27:07,247 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 91 [2022-01-19 04:27:07,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 92 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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 04:27:07,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:27:07,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 91 [2022-01-19 04:27:07,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:27:07,340 INFO L129 PetriNetUnfolder]: 38/238 cut-off events. [2022-01-19 04:27:07,340 INFO L130 PetriNetUnfolder]: For 377/380 co-relation queries the response was YES. [2022-01-19 04:27:07,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 238 events. 38/238 cut-off events. For 377/380 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 963 event pairs, 0 based on Foata normal form. 19/251 useless extension candidates. Maximal degree in co-relation 688. Up to 52 conditions per place. [2022-01-19 04:27:07,341 INFO L132 encePairwiseOnDemand]: 76/91 looper letters, 21 selfloop transitions, 22 changer transitions 9/98 dead transitions. [2022-01-19 04:27:07,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 98 transitions, 517 flow [2022-01-19 04:27:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 04:27:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 04:27:07,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 724 transitions. [2022-01-19 04:27:07,343 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7232767232767233 [2022-01-19 04:27:07,343 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 724 transitions. [2022-01-19 04:27:07,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 724 transitions. [2022-01-19 04:27:07,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:27:07,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 724 transitions. [2022-01-19 04:27:07,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 65.81818181818181) internal successors, (724), 11 states have internal predecessors, (724), 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 04:27:07,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 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 04:27:07,346 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 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 04:27:07,346 INFO L186 Difference]: Start difference. First operand has 106 places, 92 transitions, 405 flow. Second operand 11 states and 724 transitions. [2022-01-19 04:27:07,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 98 transitions, 517 flow [2022-01-19 04:27:07,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 457 flow, removed 11 selfloop flow, removed 12 redundant places. [2022-01-19 04:27:07,349 INFO L242 Difference]: Finished difference. Result has 102 places, 76 transitions, 323 flow [2022-01-19 04:27:07,349 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=323, PETRI_PLACES=102, PETRI_TRANSITIONS=76} [2022-01-19 04:27:07,349 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 11 predicate places. [2022-01-19 04:27:07,350 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 76 transitions, 323 flow [2022-01-19 04:27:07,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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 04:27:07,350 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:27:07,350 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] [2022-01-19 04:27:07,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 04:27:07,350 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:27:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:27:07,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1378651549, now seen corresponding path program 1 times [2022-01-19 04:27:07,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:27:07,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891661101] [2022-01-19 04:27:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:27:07,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:27:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:27:07,361 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 04:27:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:27:07,393 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 04:27:07,393 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 04:27:07,394 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 04:27:07,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-19 04:27:07,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-19 04:27:07,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-19 04:27:07,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 04:27:07,398 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-19 04:27:07,399 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2022-01-19 04:27:07,401 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 04:27:07,401 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 04:27:07,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 04:27:07 BasicIcfg [2022-01-19 04:27:07,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 04:27:07,432 INFO L158 Benchmark]: Toolchain (without parser) took 2619.01ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 293.4MB in the beginning and 270.4MB in the end (delta: 23.0MB). Peak memory consumption was 110.6MB. Max. memory is 16.0GB. [2022-01-19 04:27:07,432 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 348.1MB. Free memory is still 311.3MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 04:27:07,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.59ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 293.2MB in the beginning and 398.9MB in the end (delta: -105.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. [2022-01-19 04:27:07,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.67ms. Allocated memory is still 434.1MB. Free memory was 398.9MB in the beginning and 396.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 04:27:07,433 INFO L158 Benchmark]: Boogie Preprocessor took 15.75ms. Allocated memory is still 434.1MB. Free memory was 396.8MB in the beginning and 394.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 04:27:07,433 INFO L158 Benchmark]: RCFGBuilder took 360.19ms. Allocated memory is still 434.1MB. Free memory was 394.7MB in the beginning and 374.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-19 04:27:07,433 INFO L158 Benchmark]: TraceAbstraction took 1866.81ms. Allocated memory is still 434.1MB. Free memory was 374.8MB in the beginning and 270.4MB in the end (delta: 104.4MB). Peak memory consumption was 106.5MB. Max. memory is 16.0GB. [2022-01-19 04:27:07,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 348.1MB. Free memory is still 311.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 343.59ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 293.2MB in the beginning and 398.9MB in the end (delta: -105.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.67ms. Allocated memory is still 434.1MB. Free memory was 398.9MB in the beginning and 396.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.75ms. Allocated memory is still 434.1MB. Free memory was 396.8MB in the beginning and 394.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 360.19ms. Allocated memory is still 434.1MB. Free memory was 394.7MB in the beginning and 374.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 1866.81ms. Allocated memory is still 434.1MB. Free memory was 374.8MB in the beginning and 270.4MB in the end (delta: 104.4MB). Peak memory consumption was 106.5MB. 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 - CounterExampleResult [Line: 716]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 int g0 = 0,g1 = 0,x = 0; VAL [g0=0, g1=0, x=0] [L690] 0 _Bool lock = 0; VAL [g0=0, g1=0, lock=0, x=0] [L691] 0 int mutex = 0; VAL [g0=0, g1=0, lock=0, mutex=0, x=0] [L735] 0 pthread_t t; VAL [g0=0, g1=0, lock=0, mutex=0, t={3:0}, x=0] [L736] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [g0=0, g1=0, lock=0, mutex=0, pthread_create(&t, 0, thr1, 0)=-2, t={3:0}, x=0] [L737] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [g0=0, g1=0, lock=0, mutex=0, pthread_create(&t, 0, thr2, 0)=-1, t={3:0}, x=0] [L738] COND TRUE 0 1 VAL [g0=0, g1=0, lock=0, mutex=0, t={3:0}, x=0] [L740] FCALL, FORK 0 pthread_create(&t, 0, thr3, 0) VAL [g0=0, g1=0, lock=0, mutex=0, pthread_create(&t, 0, thr3, 0)=0, t={3:0}, x=0] [L728] CALL 1 __VERIFIER_atomic_acquire() [L694] CALL 1 assume_abort_if_not(mutex==0) [L4] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mutex==0) [L695] 1 mutex = 1 [L728] RET 1 __VERIFIER_atomic_acquire() [L729] 1 g0=1 VAL [arg={0:0}, arg={0:0}, g0=1, g1=0, lock=0, mutex=1, x=0] [L729] 1 g1=1 VAL [arg={0:0}, arg={0:0}, g0=1, g1=1, lock=0, mutex=1, x=0] [L730] CALL 1 __VERIFIER_atomic_release() [L699] CALL 1 assume_abort_if_not(mutex==1) [L4] COND FALSE 1 !(!cond) [L699] RET 1 assume_abort_if_not(mutex==1) [L700] 1 mutex = 0 [L730] RET 1 __VERIFIER_atomic_release() [L704] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L704] RET 3 __VERIFIER_atomic_acquire() [L705] COND TRUE 3 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, arg={0:0}, arg={0:0}, g0=1, g1=1, lock=0, mutex=1, x=0] [L707] 3 g0=0 VAL [arg={0:0}, arg={0:0}, g0=0, g1=1, lock=0, mutex=1, x=0] [L708] 3 g1=0 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=0, mutex=1, x=0] [L709] 3 lock=0 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=0, mutex=1, x=0] [L731] 1 lock=1 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=0] [L711] CALL 3 __VERIFIER_atomic_release() [L699] CALL 3 assume_abort_if_not(mutex==1) [L4] COND FALSE 3 !(!cond) [L699] RET 3 assume_abort_if_not(mutex==1) [L700] 3 mutex = 0 [L711] RET 3 __VERIFIER_atomic_release() [L712] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L712] RET 3 __VERIFIER_atomic_acquire() [L713] COND TRUE 3 \read(lock) VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=0] [L715] 3 x=1 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=1] [L716] COND TRUE 3 !(g0==1 && g1==1) VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=1] [L716] 3 reach_error() VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=1] - UnprovableResult [Line: 723]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 128 locations, 7 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: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 49 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=3, InterpolantAutomatonStates: 32, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-19 04:27:07,459 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...