/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:28:44,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:28:44,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:28:45,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:28:45,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:28:45,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:28:45,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:28:45,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:28:45,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:28:45,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:28:45,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:28:45,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:28:45,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:28:45,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:28:45,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:28:45,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:28:45,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:28:45,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:28:45,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:28:45,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:28:45,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:28:45,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:28:45,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:28:45,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:28:45,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:28:45,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:28:45,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:28:45,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:28:45,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-01-18 23:28:45,097 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:28:45,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:28:45,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:28:45,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:28:45,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:28:45,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:28:45,099 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:28:45,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:28:45,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:28:45,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:28:45,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:28:45,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:28:45,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:28:45,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:28:45,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:28:45,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:28:45,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:28:45,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:28:45,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:28:45,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:28:45,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:28:45,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:28:45,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:28:45,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:28:45,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:28:45,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:28:45,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:28:45,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:28:45,304 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:28:45,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-01-18 23:28:45,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a633d661/79f147dbbe02445e850f9a2989d443f2/FLAG00f8b61c4 [2022-01-18 23:28:45,725 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:28:45,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-01-18 23:28:45,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a633d661/79f147dbbe02445e850f9a2989d443f2/FLAG00f8b61c4 [2022-01-18 23:28:45,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a633d661/79f147dbbe02445e850f9a2989d443f2 [2022-01-18 23:28:45,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:28:45,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:28:45,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:28:45,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:28:45,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:28:45,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:28:45" (1/1) ... [2022-01-18 23:28:45,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b43019d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:45, skipping insertion in model container [2022-01-18 23:28:45,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:28:45" (1/1) ... [2022-01-18 23:28:45,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:28:45,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:28:45,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-01-18 23:28:46,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:28:46,048 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:28:46,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-01-18 23:28:46,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:28:46,112 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:28:46,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46 WrapperNode [2022-01-18 23:28:46,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:28:46,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:28:46,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:28:46,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:28:46,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,164 INFO L137 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2022-01-18 23:28:46,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:28:46,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:28:46,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:28:46,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:28:46,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:28:46,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:28:46,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:28:46,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:28:46,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (1/1) ... [2022-01-18 23:28:46,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:28:46,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:28:46,208 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) [2022-01-18 23:28:46,214 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 [2022-01-18 23:28:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 23:28:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-01-18 23:28:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:28:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:28:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:28:46,243 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 23:28:46,325 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:28:46,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:28:46,466 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:28:46,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:28:46,471 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 23:28:46,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:28:46 BoogieIcfgContainer [2022-01-18 23:28:46,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:28:46,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:28:46,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:28:46,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:28:46,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:28:45" (1/3) ... [2022-01-18 23:28:46,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e5f126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:28:46, skipping insertion in model container [2022-01-18 23:28:46,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:46" (2/3) ... [2022-01-18 23:28:46,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e5f126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:28:46, skipping insertion in model container [2022-01-18 23:28:46,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:28:46" (3/3) ... [2022-01-18 23:28:46,477 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-01-18 23:28:46,480 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:28:46,480 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-18 23:28:46,481 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:28:46,500 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,500 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,500 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,500 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,500 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,500 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,501 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,502 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,503 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,503 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,503 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,503 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,503 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,503 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,504 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,505 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,505 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,505 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,507 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:46,510 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 23:28:46,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:28:46,541 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 [2022-01-18 23:28:46,541 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 23:28:46,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 111 transitions, 230 flow [2022-01-18 23:28:46,591 INFO L129 PetriNetUnfolder]: 3/110 cut-off events. [2022-01-18 23:28:46,592 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:28:46,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 3/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-01-18 23:28:46,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 111 transitions, 230 flow [2022-01-18 23:28:46,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 94 transitions, 191 flow [2022-01-18 23:28:46,628 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2022-01-18 23:28:46,629 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:28:46,629 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:46,630 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] [2022-01-18 23:28:46,630 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:46,636 INFO L85 PathProgramCache]: Analyzing trace with hash -209547896, now seen corresponding path program 1 times [2022-01-18 23:28:46,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:46,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701455419] [2022-01-18 23:28:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:46,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:46,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701455419] [2022-01-18 23:28:46,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701455419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:46,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:46,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:28:46,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708792782] [2022-01-18 23:28:46,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:46,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:28:46,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:47,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:28:47,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:28:47,025 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 111 [2022-01-18 23:28:47,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 94 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 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) [2022-01-18 23:28:47,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:47,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 111 [2022-01-18 23:28:47,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:47,240 INFO L129 PetriNetUnfolder]: 62/305 cut-off events. [2022-01-18 23:28:47,240 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:28:47,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 305 events. 62/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1331 event pairs, 26 based on Foata normal form. 8/304 useless extension candidates. Maximal degree in co-relation 412. Up to 60 conditions per place. [2022-01-18 23:28:47,245 INFO L132 encePairwiseOnDemand]: 99/111 looper letters, 32 selfloop transitions, 17 changer transitions 0/119 dead transitions. [2022-01-18 23:28:47,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 339 flow [2022-01-18 23:28:47,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 23:28:47,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 23:28:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2022-01-18 23:28:47,266 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8018018018018018 [2022-01-18 23:28:47,266 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 801 transitions. [2022-01-18 23:28:47,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 801 transitions. [2022-01-18 23:28:47,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:47,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 801 transitions. [2022-01-18 23:28:47,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 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) [2022-01-18 23:28:47,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-01-18 23:28:47,305 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-01-18 23:28:47,306 INFO L186 Difference]: Start difference. First operand has 96 places, 94 transitions, 191 flow. Second operand 9 states and 801 transitions. [2022-01-18 23:28:47,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 339 flow [2022-01-18 23:28:47,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 119 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-18 23:28:47,311 INFO L242 Difference]: Finished difference. Result has 105 places, 102 transitions, 270 flow [2022-01-18 23:28:47,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=270, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2022-01-18 23:28:47,314 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 9 predicate places. [2022-01-18 23:28:47,314 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 270 flow [2022-01-18 23:28:47,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 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) [2022-01-18 23:28:47,314 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:47,315 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:47,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:28:47,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:47,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:47,315 INFO L85 PathProgramCache]: Analyzing trace with hash 330090460, now seen corresponding path program 1 times [2022-01-18 23:28:47,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:47,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342246058] [2022-01-18 23:28:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:47,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:47,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:47,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342246058] [2022-01-18 23:28:47,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342246058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:47,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:47,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:28:47,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569744272] [2022-01-18 23:28:47,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:47,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:28:47,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:47,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:28:47,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:28:47,440 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 111 [2022-01-18 23:28:47,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-01-18 23:28:47,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:47,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 111 [2022-01-18 23:28:47,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:47,551 INFO L129 PetriNetUnfolder]: 68/379 cut-off events. [2022-01-18 23:28:47,551 INFO L130 PetriNetUnfolder]: For 63/68 co-relation queries the response was YES. [2022-01-18 23:28:47,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 379 events. 68/379 cut-off events. For 63/68 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1812 event pairs, 20 based on Foata normal form. 9/385 useless extension candidates. Maximal degree in co-relation 597. Up to 72 conditions per place. [2022-01-18 23:28:47,554 INFO L132 encePairwiseOnDemand]: 101/111 looper letters, 32 selfloop transitions, 23 changer transitions 0/125 dead transitions. [2022-01-18 23:28:47,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 125 transitions, 448 flow [2022-01-18 23:28:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 23:28:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 23:28:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 797 transitions. [2022-01-18 23:28:47,556 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7977977977977978 [2022-01-18 23:28:47,556 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 797 transitions. [2022-01-18 23:28:47,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 797 transitions. [2022-01-18 23:28:47,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:47,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 797 transitions. [2022-01-18 23:28:47,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.55555555555556) internal successors, (797), 9 states have internal predecessors, (797), 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) [2022-01-18 23:28:47,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-01-18 23:28:47,561 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2022-01-18 23:28:47,561 INFO L186 Difference]: Start difference. First operand has 105 places, 102 transitions, 270 flow. Second operand 9 states and 797 transitions. [2022-01-18 23:28:47,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 125 transitions, 448 flow [2022-01-18 23:28:47,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 125 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:28:47,566 INFO L242 Difference]: Finished difference. Result has 116 places, 113 transitions, 390 flow [2022-01-18 23:28:47,566 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=390, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2022-01-18 23:28:47,566 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 20 predicate places. [2022-01-18 23:28:47,567 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 390 flow [2022-01-18 23:28:47,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-01-18 23:28:47,567 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:47,567 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:47,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:28:47,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:47,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:47,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1645473706, now seen corresponding path program 1 times [2022-01-18 23:28:47,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:47,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624168699] [2022-01-18 23:28:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:47,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:47,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:47,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624168699] [2022-01-18 23:28:47,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624168699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:47,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:47,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 23:28:47,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209181085] [2022-01-18 23:28:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:47,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 23:28:47,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:47,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 23:28:47,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 23:28:47,668 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2022-01-18 23:28:47,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 390 flow. Second operand has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 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) [2022-01-18 23:28:47,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:47,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2022-01-18 23:28:47,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:47,861 INFO L129 PetriNetUnfolder]: 90/492 cut-off events. [2022-01-18 23:28:47,861 INFO L130 PetriNetUnfolder]: For 244/249 co-relation queries the response was YES. [2022-01-18 23:28:47,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 492 events. 90/492 cut-off events. For 244/249 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2573 event pairs, 0 based on Foata normal form. 15/505 useless extension candidates. Maximal degree in co-relation 893. Up to 32 conditions per place. [2022-01-18 23:28:47,863 INFO L132 encePairwiseOnDemand]: 94/111 looper letters, 45 selfloop transitions, 60 changer transitions 15/189 dead transitions. [2022-01-18 23:28:47,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 189 transitions, 992 flow [2022-01-18 23:28:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:28:47,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:28:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1670 transitions. [2022-01-18 23:28:47,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7918444760550024 [2022-01-18 23:28:47,866 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1670 transitions. [2022-01-18 23:28:47,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1670 transitions. [2022-01-18 23:28:47,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:47,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1670 transitions. [2022-01-18 23:28:47,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 87.89473684210526) internal successors, (1670), 19 states have internal predecessors, (1670), 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) [2022-01-18 23:28:47,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 111.0) internal successors, (2220), 20 states have internal predecessors, (2220), 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) [2022-01-18 23:28:47,873 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 111.0) internal successors, (2220), 20 states have internal predecessors, (2220), 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) [2022-01-18 23:28:47,873 INFO L186 Difference]: Start difference. First operand has 116 places, 113 transitions, 390 flow. Second operand 19 states and 1670 transitions. [2022-01-18 23:28:47,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 189 transitions, 992 flow [2022-01-18 23:28:47,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 189 transitions, 988 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-01-18 23:28:47,882 INFO L242 Difference]: Finished difference. Result has 145 places, 147 transitions, 786 flow [2022-01-18 23:28:47,882 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=786, PETRI_PLACES=145, PETRI_TRANSITIONS=147} [2022-01-18 23:28:47,884 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 49 predicate places. [2022-01-18 23:28:47,884 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 147 transitions, 786 flow [2022-01-18 23:28:47,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 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) [2022-01-18 23:28:47,884 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:47,884 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:47,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:28:47,885 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:47,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:47,885 INFO L85 PathProgramCache]: Analyzing trace with hash 670671853, now seen corresponding path program 1 times [2022-01-18 23:28:47,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:47,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691009352] [2022-01-18 23:28:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:47,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:48,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:48,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691009352] [2022-01-18 23:28:48,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691009352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:48,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:48,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:28:48,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154725867] [2022-01-18 23:28:48,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:48,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:28:48,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:28:48,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:28:48,009 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 111 [2022-01-18 23:28:48,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 147 transitions, 786 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2022-01-18 23:28:48,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:48,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 111 [2022-01-18 23:28:48,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:48,082 INFO L129 PetriNetUnfolder]: 24/289 cut-off events. [2022-01-18 23:28:48,082 INFO L130 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2022-01-18 23:28:48,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 289 events. 24/289 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1007 event pairs, 11 based on Foata normal form. 10/298 useless extension candidates. Maximal degree in co-relation 582. Up to 49 conditions per place. [2022-01-18 23:28:48,083 INFO L132 encePairwiseOnDemand]: 101/111 looper letters, 19 selfloop transitions, 10 changer transitions 0/116 dead transitions. [2022-01-18 23:28:48,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 116 transitions, 529 flow [2022-01-18 23:28:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:28:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:28:48,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2022-01-18 23:28:48,085 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7531531531531531 [2022-01-18 23:28:48,085 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2022-01-18 23:28:48,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2022-01-18 23:28:48,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:48,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2022-01-18 23:28:48,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 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) [2022-01-18 23:28:48,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2022-01-18 23:28:48,089 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2022-01-18 23:28:48,089 INFO L186 Difference]: Start difference. First operand has 145 places, 147 transitions, 786 flow. Second operand 5 states and 418 transitions. [2022-01-18 23:28:48,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 116 transitions, 529 flow [2022-01-18 23:28:48,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 116 transitions, 429 flow, removed 19 selfloop flow, removed 19 redundant places. [2022-01-18 23:28:48,094 INFO L242 Difference]: Finished difference. Result has 124 places, 113 transitions, 397 flow [2022-01-18 23:28:48,095 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=397, PETRI_PLACES=124, PETRI_TRANSITIONS=113} [2022-01-18 23:28:48,095 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 28 predicate places. [2022-01-18 23:28:48,096 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 113 transitions, 397 flow [2022-01-18 23:28:48,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2022-01-18 23:28:48,096 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:48,096 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:48,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 23:28:48,097 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash 565991624, now seen corresponding path program 1 times [2022-01-18 23:28:48,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:48,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229227922] [2022-01-18 23:28:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:48,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:48,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229227922] [2022-01-18 23:28:48,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229227922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:48,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:48,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 23:28:48,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951285117] [2022-01-18 23:28:48,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:48,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 23:28:48,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:48,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 23:28:48,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-18 23:28:48,196 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 111 [2022-01-18 23:28:48,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 113 transitions, 397 flow. Second operand has 9 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 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) [2022-01-18 23:28:48,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:48,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 111 [2022-01-18 23:28:48,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:48,363 INFO L129 PetriNetUnfolder]: 6/206 cut-off events. [2022-01-18 23:28:48,363 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-01-18 23:28:48,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 206 events. 6/206 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 559 event pairs, 1 based on Foata normal form. 2/207 useless extension candidates. Maximal degree in co-relation 364. Up to 17 conditions per place. [2022-01-18 23:28:48,364 INFO L132 encePairwiseOnDemand]: 95/111 looper letters, 19 selfloop transitions, 34 changer transitions 0/122 dead transitions. [2022-01-18 23:28:48,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 122 transitions, 523 flow [2022-01-18 23:28:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:28:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:28:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1917 transitions. [2022-01-18 23:28:48,367 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7508813160987075 [2022-01-18 23:28:48,367 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1917 transitions. [2022-01-18 23:28:48,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1917 transitions. [2022-01-18 23:28:48,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:48,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1917 transitions. [2022-01-18 23:28:48,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 83.34782608695652) internal successors, (1917), 23 states have internal predecessors, (1917), 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) [2022-01-18 23:28:48,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 111.0) internal successors, (2664), 24 states have internal predecessors, (2664), 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) [2022-01-18 23:28:48,374 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 111.0) internal successors, (2664), 24 states have internal predecessors, (2664), 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) [2022-01-18 23:28:48,374 INFO L186 Difference]: Start difference. First operand has 124 places, 113 transitions, 397 flow. Second operand 23 states and 1917 transitions. [2022-01-18 23:28:48,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 122 transitions, 523 flow [2022-01-18 23:28:48,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 122 transitions, 503 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-18 23:28:48,376 INFO L242 Difference]: Finished difference. Result has 139 places, 115 transitions, 445 flow [2022-01-18 23:28:48,377 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=445, PETRI_PLACES=139, PETRI_TRANSITIONS=115} [2022-01-18 23:28:48,377 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 43 predicate places. [2022-01-18 23:28:48,377 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 115 transitions, 445 flow [2022-01-18 23:28:48,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 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) [2022-01-18 23:28:48,378 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:48,378 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:48,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 23:28:48,378 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash -735792319, now seen corresponding path program 1 times [2022-01-18 23:28:48,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:48,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039411059] [2022-01-18 23:28:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:48,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:48,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:48,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039411059] [2022-01-18 23:28:48,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039411059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:48,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:48,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 23:28:48,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912317441] [2022-01-18 23:28:48,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:48,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 23:28:48,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:48,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 23:28:48,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 23:28:48,421 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2022-01-18 23:28:48,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 115 transitions, 445 flow. Second operand has 7 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 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) [2022-01-18 23:28:48,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:48,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2022-01-18 23:28:48,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:48,509 INFO L129 PetriNetUnfolder]: 7/218 cut-off events. [2022-01-18 23:28:48,509 INFO L130 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2022-01-18 23:28:48,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 218 events. 7/218 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 656 event pairs, 1 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 409. Up to 20 conditions per place. [2022-01-18 23:28:48,510 INFO L132 encePairwiseOnDemand]: 96/111 looper letters, 23 selfloop transitions, 27 changer transitions 0/122 dead transitions. [2022-01-18 23:28:48,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 122 transitions, 565 flow [2022-01-18 23:28:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 23:28:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-18 23:28:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1277 transitions. [2022-01-18 23:28:48,512 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.766966966966967 [2022-01-18 23:28:48,512 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1277 transitions. [2022-01-18 23:28:48,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1277 transitions. [2022-01-18 23:28:48,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:48,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1277 transitions. [2022-01-18 23:28:48,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 85.13333333333334) internal successors, (1277), 15 states have internal predecessors, (1277), 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) [2022-01-18 23:28:48,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 111.0) internal successors, (1776), 16 states have internal predecessors, (1776), 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) [2022-01-18 23:28:48,517 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 111.0) internal successors, (1776), 16 states have internal predecessors, (1776), 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) [2022-01-18 23:28:48,517 INFO L186 Difference]: Start difference. First operand has 139 places, 115 transitions, 445 flow. Second operand 15 states and 1277 transitions. [2022-01-18 23:28:48,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 122 transitions, 565 flow [2022-01-18 23:28:48,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 122 transitions, 510 flow, removed 2 selfloop flow, removed 14 redundant places. [2022-01-18 23:28:48,519 INFO L242 Difference]: Finished difference. Result has 141 places, 118 transitions, 472 flow [2022-01-18 23:28:48,520 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=472, PETRI_PLACES=141, PETRI_TRANSITIONS=118} [2022-01-18 23:28:48,520 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 45 predicate places. [2022-01-18 23:28:48,520 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 118 transitions, 472 flow [2022-01-18 23:28:48,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 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) [2022-01-18 23:28:48,520 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:48,521 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:48,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 23:28:48,521 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:48,521 INFO L85 PathProgramCache]: Analyzing trace with hash 828029058, now seen corresponding path program 1 times [2022-01-18 23:28:48,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:48,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9504655] [2022-01-18 23:28:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:48,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:48,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:48,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9504655] [2022-01-18 23:28:48,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9504655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:48,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:48,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 23:28:48,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088122749] [2022-01-18 23:28:48,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:48,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 23:28:48,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:48,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 23:28:48,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-18 23:28:48,579 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 111 [2022-01-18 23:28:48,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 118 transitions, 472 flow. Second operand has 9 states, 9 states have (on average 82.77777777777777) internal successors, (745), 9 states have internal predecessors, (745), 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) [2022-01-18 23:28:48,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:48,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 111 [2022-01-18 23:28:48,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:48,760 INFO L129 PetriNetUnfolder]: 7/214 cut-off events. [2022-01-18 23:28:48,760 INFO L130 PetriNetUnfolder]: For 140/140 co-relation queries the response was YES. [2022-01-18 23:28:48,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 214 events. 7/214 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 1 based on Foata normal form. 2/215 useless extension candidates. Maximal degree in co-relation 419. Up to 19 conditions per place. [2022-01-18 23:28:48,761 INFO L132 encePairwiseOnDemand]: 95/111 looper letters, 17 selfloop transitions, 35 changer transitions 0/120 dead transitions. [2022-01-18 23:28:48,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 120 transitions, 576 flow [2022-01-18 23:28:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 23:28:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-18 23:28:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1748 transitions. [2022-01-18 23:28:48,777 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7498927498927499 [2022-01-18 23:28:48,778 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1748 transitions. [2022-01-18 23:28:48,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1748 transitions. [2022-01-18 23:28:48,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:48,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1748 transitions. [2022-01-18 23:28:48,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 83.23809523809524) internal successors, (1748), 21 states have internal predecessors, (1748), 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) [2022-01-18 23:28:48,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 111.0) internal successors, (2442), 22 states have internal predecessors, (2442), 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) [2022-01-18 23:28:48,784 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 111.0) internal successors, (2442), 22 states have internal predecessors, (2442), 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) [2022-01-18 23:28:48,784 INFO L186 Difference]: Start difference. First operand has 141 places, 118 transitions, 472 flow. Second operand 21 states and 1748 transitions. [2022-01-18 23:28:48,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 120 transitions, 576 flow [2022-01-18 23:28:48,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 120 transitions, 516 flow, removed 4 selfloop flow, removed 12 redundant places. [2022-01-18 23:28:48,786 INFO L242 Difference]: Finished difference. Result has 147 places, 116 transitions, 474 flow [2022-01-18 23:28:48,787 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=474, PETRI_PLACES=147, PETRI_TRANSITIONS=116} [2022-01-18 23:28:48,787 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 51 predicate places. [2022-01-18 23:28:48,787 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 116 transitions, 474 flow [2022-01-18 23:28:48,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 82.77777777777777) internal successors, (745), 9 states have internal predecessors, (745), 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) [2022-01-18 23:28:48,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:48,788 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:48,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 23:28:48,788 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:48,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:48,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1449404882, now seen corresponding path program 1 times [2022-01-18 23:28:48,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:48,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825902160] [2022-01-18 23:28:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:48,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:48,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:48,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825902160] [2022-01-18 23:28:48,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825902160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:48,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:48,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 23:28:48,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544405133] [2022-01-18 23:28:48,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:48,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 23:28:48,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:48,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 23:28:48,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 23:28:48,945 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 111 [2022-01-18 23:28:48,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 116 transitions, 474 flow. Second operand has 8 states, 8 states have (on average 74.375) internal successors, (595), 8 states have internal predecessors, (595), 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) [2022-01-18 23:28:48,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:48,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 111 [2022-01-18 23:28:48,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:49,024 INFO L129 PetriNetUnfolder]: 12/205 cut-off events. [2022-01-18 23:28:49,024 INFO L130 PetriNetUnfolder]: For 96/98 co-relation queries the response was YES. [2022-01-18 23:28:49,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 205 events. 12/205 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 501 event pairs, 1 based on Foata normal form. 13/218 useless extension candidates. Maximal degree in co-relation 387. Up to 37 conditions per place. [2022-01-18 23:28:49,025 INFO L132 encePairwiseOnDemand]: 105/111 looper letters, 28 selfloop transitions, 7 changer transitions 0/116 dead transitions. [2022-01-18 23:28:49,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 116 transitions, 528 flow [2022-01-18 23:28:49,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:28:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:28:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2022-01-18 23:28:49,026 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6921921921921922 [2022-01-18 23:28:49,026 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 461 transitions. [2022-01-18 23:28:49,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 461 transitions. [2022-01-18 23:28:49,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:49,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 461 transitions. [2022-01-18 23:28:49,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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) [2022-01-18 23:28:49,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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) [2022-01-18 23:28:49,028 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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) [2022-01-18 23:28:49,029 INFO L186 Difference]: Start difference. First operand has 147 places, 116 transitions, 474 flow. Second operand 6 states and 461 transitions. [2022-01-18 23:28:49,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 116 transitions, 528 flow [2022-01-18 23:28:49,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 116 transitions, 455 flow, removed 3 selfloop flow, removed 21 redundant places. [2022-01-18 23:28:49,031 INFO L242 Difference]: Finished difference. Result has 131 places, 113 transitions, 387 flow [2022-01-18 23:28:49,031 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=131, PETRI_TRANSITIONS=113} [2022-01-18 23:28:49,032 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 35 predicate places. [2022-01-18 23:28:49,032 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 113 transitions, 387 flow [2022-01-18 23:28:49,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.375) internal successors, (595), 8 states have internal predecessors, (595), 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) [2022-01-18 23:28:49,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:49,032 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:49,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 23:28:49,032 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 23:28:49,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:49,033 INFO L85 PathProgramCache]: Analyzing trace with hash 131069529, now seen corresponding path program 1 times [2022-01-18 23:28:49,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:49,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392423651] [2022-01-18 23:28:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:49,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:49,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:49,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392423651] [2022-01-18 23:28:49,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392423651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:49,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:49,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 23:28:49,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399645957] [2022-01-18 23:28:49,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:49,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 23:28:49,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:49,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 23:28:49,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 23:28:49,111 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 111 [2022-01-18 23:28:49,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 113 transitions, 387 flow. Second operand has 8 states, 8 states have (on average 83.5) internal successors, (668), 8 states have internal predecessors, (668), 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) [2022-01-18 23:28:49,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:49,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 111 [2022-01-18 23:28:49,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:49,244 INFO L129 PetriNetUnfolder]: 4/177 cut-off events. [2022-01-18 23:28:49,244 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2022-01-18 23:28:49,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 177 events. 4/177 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 391 event pairs, 1 based on Foata normal form. 1/178 useless extension candidates. Maximal degree in co-relation 308. Up to 21 conditions per place. [2022-01-18 23:28:49,244 INFO L132 encePairwiseOnDemand]: 97/111 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2022-01-18 23:28:49,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 112 transitions, 475 flow [2022-01-18 23:28:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 23:28:49,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-18 23:28:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1330 transitions. [2022-01-18 23:28:49,247 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7488738738738738 [2022-01-18 23:28:49,247 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1330 transitions. [2022-01-18 23:28:49,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1330 transitions. [2022-01-18 23:28:49,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:49,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1330 transitions. [2022-01-18 23:28:49,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 83.125) internal successors, (1330), 16 states have internal predecessors, (1330), 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) [2022-01-18 23:28:49,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 111.0) internal successors, (1887), 17 states have internal predecessors, (1887), 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) [2022-01-18 23:28:49,251 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 111.0) internal successors, (1887), 17 states have internal predecessors, (1887), 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) [2022-01-18 23:28:49,251 INFO L186 Difference]: Start difference. First operand has 131 places, 113 transitions, 387 flow. Second operand 16 states and 1330 transitions. [2022-01-18 23:28:49,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 112 transitions, 475 flow [2022-01-18 23:28:49,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 112 transitions, 457 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-18 23:28:49,253 INFO L242 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2022-01-18 23:28:49,253 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2022-01-18 23:28:49,254 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 43 predicate places. [2022-01-18 23:28:49,254 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2022-01-18 23:28:49,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 83.5) internal successors, (668), 8 states have internal predecessors, (668), 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) [2022-01-18 23:28:49,256 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 23:28:49,256 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 23:28:49,256 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 23:28:49,256 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 23:28:49,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 23:28:49,259 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:49,260 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:28:49,260 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:28:49,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:28:49 BasicIcfg [2022-01-18 23:28:49,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:28:49,262 INFO L158 Benchmark]: Toolchain (without parser) took 3518.43ms. Allocated memory was 434.1MB in the beginning and 627.0MB in the end (delta: 192.9MB). Free memory was 404.1MB in the beginning and 403.0MB in the end (delta: 1.1MB). Peak memory consumption was 193.4MB. Max. memory is 16.0GB. [2022-01-18 23:28:49,262 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 434.1MB. Free memory is still 392.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:28:49,262 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.70ms. Allocated memory was 434.1MB in the beginning and 627.0MB in the end (delta: 192.9MB). Free memory was 403.9MB in the beginning and 586.4MB in the end (delta: -182.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 23:28:49,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.91ms. Allocated memory is still 627.0MB. Free memory was 586.4MB in the beginning and 584.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:28:49,263 INFO L158 Benchmark]: Boogie Preprocessor took 15.45ms. Allocated memory is still 627.0MB. Free memory was 584.3MB in the beginning and 583.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:28:49,263 INFO L158 Benchmark]: RCFGBuilder took 291.91ms. Allocated memory is still 627.0MB. Free memory was 582.9MB in the beginning and 569.6MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 23:28:49,263 INFO L158 Benchmark]: TraceAbstraction took 2788.49ms. Allocated memory is still 627.0MB. Free memory was 569.3MB in the beginning and 403.0MB in the end (delta: 166.3MB). Peak memory consumption was 169.0MB. Max. memory is 16.0GB. [2022-01-18 23:28:49,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 434.1MB. Free memory is still 392.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 368.70ms. Allocated memory was 434.1MB in the beginning and 627.0MB in the end (delta: 192.9MB). Free memory was 403.9MB in the beginning and 586.4MB in the end (delta: -182.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.91ms. Allocated memory is still 627.0MB. Free memory was 586.4MB in the beginning and 584.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.45ms. Allocated memory is still 627.0MB. Free memory was 584.3MB in the beginning and 583.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 291.91ms. Allocated memory is still 627.0MB. Free memory was 582.9MB in the beginning and 569.6MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2788.49ms. Allocated memory is still 627.0MB. Free memory was 569.3MB in the beginning and 403.0MB in the end (delta: 166.3MB). Peak memory consumption was 169.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 416 mSDsluCounter, 441 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 730 IncrementalHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 122 mSDtfsCounter, 730 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=786occurred in iteration=3, InterpolantAutomatonStates: 123, 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, 0.8s InterpolantComputationTime, 595 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 2107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 23:28:49,287 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...