/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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:56:41,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:56:41,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:56:41,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:56:41,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:56:41,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:56:41,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:56:41,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:56:41,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:56:41,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:56:41,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:56:41,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:56:41,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:56:41,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:56:41,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:56:41,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:56:41,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:56:41,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:56:41,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:56:41,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:56:41,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:56:41,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:56:41,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:56:41,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:56:41,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 11:56:41,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:56:41,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:56:41,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:56:41,380 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-After.epf [2022-01-19 11:56:41,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:56:41,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:56:41,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:56:41,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:56:41,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:56:41,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:56:41,403 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:56:41,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:56:41,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:56:41,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:56:41,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:56:41,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:56:41,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:56:41,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:56:41,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:56:41,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:56:41,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:56:41,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:56:41,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:56:41,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:56:41,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:56:41,615 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:56:41,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-01-19 11:56:41,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e527c7fb/87c9ab2a67564e7db31c95dd60ef0ca4/FLAG5e098358e [2022-01-19 11:56:42,106 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:56:42,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-01-19 11:56:42,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e527c7fb/87c9ab2a67564e7db31c95dd60ef0ca4/FLAG5e098358e [2022-01-19 11:56:42,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e527c7fb/87c9ab2a67564e7db31c95dd60ef0ca4 [2022-01-19 11:56:42,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:56:42,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:56:42,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:56:42,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:56:42,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:56:42,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d3cad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42, skipping insertion in model container [2022-01-19 11:56:42,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:56:42,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:56:42,341 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_24-multiple-protecting_true.i[1096,1109] [2022-01-19 11:56:42,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:56:42,447 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:56:42,456 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_24-multiple-protecting_true.i[1096,1109] [2022-01-19 11:56:42,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:56:42,501 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:56:42,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42 WrapperNode [2022-01-19 11:56:42,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:56:42,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:56:42,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:56:42,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:56:42,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,547 INFO L137 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2022-01-19 11:56:42,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:56:42,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:56:42,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:56:42,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:56:42,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:56:42,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:56:42,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:56:42,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:56:42,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (1/1) ... [2022-01-19 11:56:42,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:56:42,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:56:42,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 11:56:42,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 11:56:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 11:56:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:56:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 11:56:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:56:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:56:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 11:56:42,641 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 11:56:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:56:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:56:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:56:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:56:42,643 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 11:56:42,768 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:56:42,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:56:42,915 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:56:42,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:56:42,920 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:56:42,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:56:42 BoogieIcfgContainer [2022-01-19 11:56:42,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:56:42,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:56:42,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:56:42,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:56:42,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:56:42" (1/3) ... [2022-01-19 11:56:42,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e95066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:56:42, skipping insertion in model container [2022-01-19 11:56:42,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:56:42" (2/3) ... [2022-01-19 11:56:42,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e95066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:56:42, skipping insertion in model container [2022-01-19 11:56:42,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:56:42" (3/3) ... [2022-01-19 11:56:42,928 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2022-01-19 11:56:42,932 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:56:42,932 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-19 11:56:42,932 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:56:42,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,959 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,973 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:56:42,975 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 11:56:43,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:56:43,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 11:56:43,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-19 11:56:43,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 143 transitions, 294 flow [2022-01-19 11:56:43,065 INFO L129 PetriNetUnfolder]: 4/142 cut-off events. [2022-01-19 11:56:43,065 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 11:56:43,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 4/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-01-19 11:56:43,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 143 transitions, 294 flow [2022-01-19 11:56:43,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 257 flow [2022-01-19 11:56:43,081 INFO L129 PetriNetUnfolder]: 0/64 cut-off events. [2022-01-19 11:56:43,082 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:56:43,082 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:43,082 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:56:43,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1006366235, now seen corresponding path program 1 times [2022-01-19 11:56:43,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:43,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857114082] [2022-01-19 11:56:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:43,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:43,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:43,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857114082] [2022-01-19 11:56:43,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857114082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:43,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:43,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 11:56:43,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332112029] [2022-01-19 11:56:43,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:43,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 11:56:43,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:43,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 11:56:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 11:56:43,384 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2022-01-19 11:56:43,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 257 flow. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:43,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2022-01-19 11:56:43,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:43,625 INFO L129 PetriNetUnfolder]: 89/622 cut-off events. [2022-01-19 11:56:43,625 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 11:56:43,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 622 events. 89/622 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3312 event pairs, 29 based on Foata normal form. 16/623 useless extension candidates. Maximal degree in co-relation 797. Up to 72 conditions per place. [2022-01-19 11:56:43,633 INFO L132 encePairwiseOnDemand]: 122/143 looper letters, 35 selfloop transitions, 23 changer transitions 5/159 dead transitions. [2022-01-19 11:56:43,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 159 transitions, 447 flow [2022-01-19 11:56:43,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:56:43,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:56:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1045 transitions. [2022-01-19 11:56:43,650 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.811965811965812 [2022-01-19 11:56:43,650 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1045 transitions. [2022-01-19 11:56:43,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1045 transitions. [2022-01-19 11:56:43,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:43,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1045 transitions. [2022-01-19 11:56:43,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 116.11111111111111) internal successors, (1045), 9 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,670 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,672 INFO L186 Difference]: Start difference. First operand has 128 places, 127 transitions, 257 flow. Second operand 9 states and 1045 transitions. [2022-01-19 11:56:43,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 159 transitions, 447 flow [2022-01-19 11:56:43,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 159 transitions, 446 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 11:56:43,680 INFO L242 Difference]: Finished difference. Result has 139 places, 138 transitions, 393 flow [2022-01-19 11:56:43,682 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=393, PETRI_PLACES=139, PETRI_TRANSITIONS=138} [2022-01-19 11:56:43,684 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2022-01-19 11:56:43,685 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 138 transitions, 393 flow [2022-01-19 11:56:43,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,685 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:43,685 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] [2022-01-19 11:56:43,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:56:43,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:43,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:43,686 INFO L85 PathProgramCache]: Analyzing trace with hash -405400082, now seen corresponding path program 1 times [2022-01-19 11:56:43,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:43,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818306175] [2022-01-19 11:56:43,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:43,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:43,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:43,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818306175] [2022-01-19 11:56:43,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818306175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:43,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:43,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:56:43,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036150179] [2022-01-19 11:56:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:43,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:56:43,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:56:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:56:43,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 143 [2022-01-19 11:56:43,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:43,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 143 [2022-01-19 11:56:43,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:43,984 INFO L129 PetriNetUnfolder]: 67/542 cut-off events. [2022-01-19 11:56:43,984 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-01-19 11:56:43,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 542 events. 67/542 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2502 event pairs, 28 based on Foata normal form. 13/547 useless extension candidates. Maximal degree in co-relation 836. Up to 124 conditions per place. [2022-01-19 11:56:43,987 INFO L132 encePairwiseOnDemand]: 136/143 looper letters, 43 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2022-01-19 11:56:43,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 146 transitions, 483 flow [2022-01-19 11:56:43,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 11:56:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 11:56:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 537 transitions. [2022-01-19 11:56:43,988 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7510489510489511 [2022-01-19 11:56:43,988 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 537 transitions. [2022-01-19 11:56:43,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 537 transitions. [2022-01-19 11:56:43,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:43,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 537 transitions. [2022-01-19 11:56:43,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,991 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:43,992 INFO L186 Difference]: Start difference. First operand has 139 places, 138 transitions, 393 flow. Second operand 5 states and 537 transitions. [2022-01-19 11:56:43,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 146 transitions, 483 flow [2022-01-19 11:56:43,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 146 transitions, 465 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-01-19 11:56:44,000 INFO L242 Difference]: Finished difference. Result has 139 places, 133 transitions, 362 flow [2022-01-19 11:56:44,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2022-01-19 11:56:44,001 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2022-01-19 11:56:44,001 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 362 flow [2022-01-19 11:56:44,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,002 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:44,002 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] [2022-01-19 11:56:44,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:56:44,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:44,003 INFO L85 PathProgramCache]: Analyzing trace with hash -781067283, now seen corresponding path program 1 times [2022-01-19 11:56:44,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:44,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7605181] [2022-01-19 11:56:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:44,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:44,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:44,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7605181] [2022-01-19 11:56:44,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7605181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:44,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:44,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:56:44,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858720857] [2022-01-19 11:56:44,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:44,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:56:44,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:44,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:56:44,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:56:44,139 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2022-01-19 11:56:44,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 362 flow. Second operand has 8 states, 8 states have (on average 107.5) internal successors, (860), 8 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:44,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2022-01-19 11:56:44,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:44,341 INFO L129 PetriNetUnfolder]: 20/344 cut-off events. [2022-01-19 11:56:44,341 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-01-19 11:56:44,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 344 events. 20/344 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1041 event pairs, 1 based on Foata normal form. 8/352 useless extension candidates. Maximal degree in co-relation 494. Up to 23 conditions per place. [2022-01-19 11:56:44,343 INFO L132 encePairwiseOnDemand]: 123/143 looper letters, 22 selfloop transitions, 31 changer transitions 10/156 dead transitions. [2022-01-19 11:56:44,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 554 flow [2022-01-19 11:56:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 11:56:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 11:56:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1965 transitions. [2022-01-19 11:56:44,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7634032634032634 [2022-01-19 11:56:44,351 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1965 transitions. [2022-01-19 11:56:44,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1965 transitions. [2022-01-19 11:56:44,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:44,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1965 transitions. [2022-01-19 11:56:44,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 109.16666666666667) internal successors, (1965), 18 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 143.0) internal successors, (2717), 19 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,361 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 143.0) internal successors, (2717), 19 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,361 INFO L186 Difference]: Start difference. First operand has 139 places, 133 transitions, 362 flow. Second operand 18 states and 1965 transitions. [2022-01-19 11:56:44,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 554 flow [2022-01-19 11:56:44,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 156 transitions, 547 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 11:56:44,366 INFO L242 Difference]: Finished difference. Result has 155 places, 136 transitions, 465 flow [2022-01-19 11:56:44,367 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=465, PETRI_PLACES=155, PETRI_TRANSITIONS=136} [2022-01-19 11:56:44,368 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 27 predicate places. [2022-01-19 11:56:44,368 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 136 transitions, 465 flow [2022-01-19 11:56:44,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.5) internal successors, (860), 8 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,369 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:44,369 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] [2022-01-19 11:56:44,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:56:44,369 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:44,370 INFO L85 PathProgramCache]: Analyzing trace with hash 871628872, now seen corresponding path program 1 times [2022-01-19 11:56:44,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:44,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553755587] [2022-01-19 11:56:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:44,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:44,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:44,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553755587] [2022-01-19 11:56:44,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553755587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:44,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:44,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 11:56:44,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705972737] [2022-01-19 11:56:44,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:44,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 11:56:44,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:44,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 11:56:44,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 11:56:44,471 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2022-01-19 11:56:44,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 136 transitions, 465 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:44,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2022-01-19 11:56:44,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:44,593 INFO L129 PetriNetUnfolder]: 65/535 cut-off events. [2022-01-19 11:56:44,594 INFO L130 PetriNetUnfolder]: For 306/307 co-relation queries the response was YES. [2022-01-19 11:56:44,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 535 events. 65/535 cut-off events. For 306/307 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2397 event pairs, 13 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 959. Up to 75 conditions per place. [2022-01-19 11:56:44,596 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 28 selfloop transitions, 23 changer transitions 12/164 dead transitions. [2022-01-19 11:56:44,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 164 transitions, 709 flow [2022-01-19 11:56:44,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:56:44,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:56:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2022-01-19 11:56:44,599 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7964257964257965 [2022-01-19 11:56:44,599 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2022-01-19 11:56:44,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2022-01-19 11:56:44,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:44,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2022-01-19 11:56:44,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,604 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,604 INFO L186 Difference]: Start difference. First operand has 155 places, 136 transitions, 465 flow. Second operand 9 states and 1025 transitions. [2022-01-19 11:56:44,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 164 transitions, 709 flow [2022-01-19 11:56:44,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 164 transitions, 628 flow, removed 8 selfloop flow, removed 11 redundant places. [2022-01-19 11:56:44,610 INFO L242 Difference]: Finished difference. Result has 155 places, 142 transitions, 511 flow [2022-01-19 11:56:44,610 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=511, PETRI_PLACES=155, PETRI_TRANSITIONS=142} [2022-01-19 11:56:44,611 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 27 predicate places. [2022-01-19 11:56:44,611 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 142 transitions, 511 flow [2022-01-19 11:56:44,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,611 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:44,612 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:56:44,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 11:56:44,613 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2129150076, now seen corresponding path program 1 times [2022-01-19 11:56:44,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:44,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230879428] [2022-01-19 11:56:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:44,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:44,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:44,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230879428] [2022-01-19 11:56:44,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230879428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:44,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:44,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:56:44,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655605431] [2022-01-19 11:56:44,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:44,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:56:44,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:56:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:56:44,863 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 143 [2022-01-19 11:56:44,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 142 transitions, 511 flow. Second operand has 8 states, 8 states have (on average 94.875) internal successors, (759), 8 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:44,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 143 [2022-01-19 11:56:44,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:44,990 INFO L129 PetriNetUnfolder]: 45/393 cut-off events. [2022-01-19 11:56:44,990 INFO L130 PetriNetUnfolder]: For 126/128 co-relation queries the response was YES. [2022-01-19 11:56:44,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 393 events. 45/393 cut-off events. For 126/128 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1567 event pairs, 6 based on Foata normal form. 3/394 useless extension candidates. Maximal degree in co-relation 751. Up to 118 conditions per place. [2022-01-19 11:56:44,992 INFO L132 encePairwiseOnDemand]: 137/143 looper letters, 38 selfloop transitions, 6 changer transitions 16/131 dead transitions. [2022-01-19 11:56:44,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 131 transitions, 512 flow [2022-01-19 11:56:44,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 11:56:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 11:56:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2022-01-19 11:56:44,994 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2022-01-19 11:56:44,994 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2022-01-19 11:56:44,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2022-01-19 11:56:44,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:44,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2022-01-19 11:56:44,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,997 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:44,997 INFO L186 Difference]: Start difference. First operand has 155 places, 142 transitions, 511 flow. Second operand 6 states and 594 transitions. [2022-01-19 11:56:44,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 131 transitions, 512 flow [2022-01-19 11:56:45,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 131 transitions, 482 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-01-19 11:56:45,001 INFO L242 Difference]: Finished difference. Result has 140 places, 110 transitions, 316 flow [2022-01-19 11:56:45,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=140, PETRI_TRANSITIONS=110} [2022-01-19 11:56:45,002 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 12 predicate places. [2022-01-19 11:56:45,002 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 110 transitions, 316 flow [2022-01-19 11:56:45,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.875) internal successors, (759), 8 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,003 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:45,003 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:56:45,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 11:56:45,003 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:45,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:45,003 INFO L85 PathProgramCache]: Analyzing trace with hash 583851217, now seen corresponding path program 1 times [2022-01-19 11:56:45,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:45,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402486469] [2022-01-19 11:56:45,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:45,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:45,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:45,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402486469] [2022-01-19 11:56:45,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402486469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:45,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:45,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:56:45,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770721043] [2022-01-19 11:56:45,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:45,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:56:45,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:56:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:56:45,063 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 143 [2022-01-19 11:56:45,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 110 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:45,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 143 [2022-01-19 11:56:45,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:45,142 INFO L129 PetriNetUnfolder]: 24/328 cut-off events. [2022-01-19 11:56:45,142 INFO L130 PetriNetUnfolder]: For 85/86 co-relation queries the response was YES. [2022-01-19 11:56:45,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 328 events. 24/328 cut-off events. For 85/86 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1076 event pairs, 12 based on Foata normal form. 12/340 useless extension candidates. Maximal degree in co-relation 579. Up to 60 conditions per place. [2022-01-19 11:56:45,143 INFO L132 encePairwiseOnDemand]: 127/143 looper letters, 23 selfloop transitions, 16 changer transitions 0/116 dead transitions. [2022-01-19 11:56:45,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 116 transitions, 414 flow [2022-01-19 11:56:45,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 11:56:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 11:56:45,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-01-19 11:56:45,145 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7384615384615385 [2022-01-19 11:56:45,145 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-01-19 11:56:45,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-01-19 11:56:45,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:45,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-01-19 11:56:45,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,148 INFO L186 Difference]: Start difference. First operand has 140 places, 110 transitions, 316 flow. Second operand 5 states and 528 transitions. [2022-01-19 11:56:45,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 116 transitions, 414 flow [2022-01-19 11:56:45,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 116 transitions, 361 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-01-19 11:56:45,150 INFO L242 Difference]: Finished difference. Result has 123 places, 113 transitions, 326 flow [2022-01-19 11:56:45,151 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2022-01-19 11:56:45,151 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, -5 predicate places. [2022-01-19 11:56:45,151 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 326 flow [2022-01-19 11:56:45,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,152 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:45,152 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:56:45,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 11:56:45,152 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:45,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash -472187700, now seen corresponding path program 1 times [2022-01-19 11:56:45,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:45,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90487655] [2022-01-19 11:56:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:45,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:45,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:45,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90487655] [2022-01-19 11:56:45,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90487655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:45,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:45,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:56:45,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245180312] [2022-01-19 11:56:45,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:45,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:56:45,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:45,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:56:45,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:56:45,235 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 143 [2022-01-19 11:56:45,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:45,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 143 [2022-01-19 11:56:45,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:45,300 INFO L129 PetriNetUnfolder]: 11/225 cut-off events. [2022-01-19 11:56:45,300 INFO L130 PetriNetUnfolder]: For 74/77 co-relation queries the response was YES. [2022-01-19 11:56:45,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 225 events. 11/225 cut-off events. For 74/77 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 498 event pairs, 0 based on Foata normal form. 11/236 useless extension candidates. Maximal degree in co-relation 405. Up to 39 conditions per place. [2022-01-19 11:56:45,301 INFO L132 encePairwiseOnDemand]: 138/143 looper letters, 31 selfloop transitions, 7 changer transitions 2/115 dead transitions. [2022-01-19 11:56:45,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 115 transitions, 413 flow [2022-01-19 11:56:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 11:56:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 11:56:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 522 transitions. [2022-01-19 11:56:45,303 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.73006993006993 [2022-01-19 11:56:45,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 522 transitions. [2022-01-19 11:56:45,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 522 transitions. [2022-01-19 11:56:45,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:45,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 522 transitions. [2022-01-19 11:56:45,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,306 INFO L186 Difference]: Start difference. First operand has 123 places, 113 transitions, 326 flow. Second operand 5 states and 522 transitions. [2022-01-19 11:56:45,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 115 transitions, 413 flow [2022-01-19 11:56:45,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 115 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 11:56:45,309 INFO L242 Difference]: Finished difference. Result has 125 places, 110 transitions, 323 flow [2022-01-19 11:56:45,309 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=125, PETRI_TRANSITIONS=110} [2022-01-19 11:56:45,310 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, -3 predicate places. [2022-01-19 11:56:45,310 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 323 flow [2022-01-19 11:56:45,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,310 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:56:45,310 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:56:45,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 11:56:45,311 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-19 11:56:45,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:56:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 159647325, now seen corresponding path program 1 times [2022-01-19 11:56:45,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:56:45,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058930278] [2022-01-19 11:56:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:56:45,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:56:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:56:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:56:45,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:56:45,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058930278] [2022-01-19 11:56:45,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058930278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:56:45,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:56:45,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:56:45,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063377693] [2022-01-19 11:56:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:56:45,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:56:45,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:56:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:56:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:56:45,404 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2022-01-19 11:56:45,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 323 flow. Second operand has 8 states, 8 states have (on average 108.5) internal successors, (868), 8 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:56:45,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2022-01-19 11:56:45,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:56:45,515 INFO L129 PetriNetUnfolder]: 4/191 cut-off events. [2022-01-19 11:56:45,515 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-01-19 11:56:45,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 191 events. 4/191 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 335 event pairs, 1 based on Foata normal form. 2/193 useless extension candidates. Maximal degree in co-relation 335. Up to 19 conditions per place. [2022-01-19 11:56:45,516 INFO L132 encePairwiseOnDemand]: 129/143 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2022-01-19 11:56:45,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 117 transitions, 401 flow [2022-01-19 11:56:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 11:56:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 11:56:45,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1726 transitions. [2022-01-19 11:56:45,519 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7543706293706294 [2022-01-19 11:56:45,519 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1726 transitions. [2022-01-19 11:56:45,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1726 transitions. [2022-01-19 11:56:45,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:56:45,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1726 transitions. [2022-01-19 11:56:45,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.875) internal successors, (1726), 16 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 143.0) internal successors, (2431), 17 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,526 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 143.0) internal successors, (2431), 17 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,526 INFO L186 Difference]: Start difference. First operand has 125 places, 110 transitions, 323 flow. Second operand 16 states and 1726 transitions. [2022-01-19 11:56:45,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 117 transitions, 401 flow [2022-01-19 11:56:45,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 117 transitions, 389 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-01-19 11:56:45,529 INFO L242 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2022-01-19 11:56:45,529 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2022-01-19 11:56:45,531 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2022-01-19 11:56:45,531 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2022-01-19 11:56:45,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.5) internal successors, (868), 8 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:56:45,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-19 11:56:45,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-19 11:56:45,537 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-19 11:56:45,537 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-19 11:56:45,537 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 5 remaining) [2022-01-19 11:56:45,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 11:56:45,539 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:56:45,541 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:56:45,541 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:56:45,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:56:45 BasicIcfg [2022-01-19 11:56:45,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:56:45,543 INFO L158 Benchmark]: Toolchain (without parser) took 3406.08ms. Allocated memory was 408.9MB in the beginning and 597.7MB in the end (delta: 188.7MB). Free memory was 354.2MB in the beginning and 378.8MB in the end (delta: -24.6MB). Peak memory consumption was 164.9MB. Max. memory is 16.0GB. [2022-01-19 11:56:45,544 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 408.9MB. Free memory is still 371.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:56:45,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.86ms. Allocated memory is still 408.9MB. Free memory was 353.9MB in the beginning and 370.9MB in the end (delta: -17.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.0GB. [2022-01-19 11:56:45,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.38ms. Allocated memory is still 408.9MB. Free memory was 370.9MB in the beginning and 368.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:56:45,544 INFO L158 Benchmark]: Boogie Preprocessor took 22.91ms. Allocated memory is still 408.9MB. Free memory was 368.8MB in the beginning and 367.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:56:45,544 INFO L158 Benchmark]: RCFGBuilder took 350.62ms. Allocated memory is still 408.9MB. Free memory was 367.8MB in the beginning and 352.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 11:56:45,545 INFO L158 Benchmark]: TraceAbstraction took 2620.35ms. Allocated memory was 408.9MB in the beginning and 597.7MB in the end (delta: 188.7MB). Free memory was 351.0MB in the beginning and 378.8MB in the end (delta: -27.8MB). Peak memory consumption was 162.0MB. Max. memory is 16.0GB. [2022-01-19 11:56:45,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 408.9MB. Free memory is still 371.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 361.86ms. Allocated memory is still 408.9MB. Free memory was 353.9MB in the beginning and 370.9MB in the end (delta: -17.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.38ms. Allocated memory is still 408.9MB. Free memory was 370.9MB in the beginning and 368.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.91ms. Allocated memory is still 408.9MB. Free memory was 368.8MB in the beginning and 367.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 350.62ms. Allocated memory is still 408.9MB. Free memory was 367.8MB in the beginning and 352.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2620.35ms. Allocated memory was 408.9MB in the beginning and 597.7MB in the end (delta: 188.7MB). Free memory was 351.0MB in the beginning and 378.8MB in the end (delta: -27.8MB). Peak memory consumption was 162.0MB. 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 - 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, 175 locations, 5 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: 2.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 297 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 297 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 247 mSDsCounter, 244 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 584 IncrementalHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 244 mSolverCounterUnsat, 105 mSDtfsCounter, 584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=4, InterpolantAutomatonStates: 73, 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, 633 NumberOfCodeBlocks, 633 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 625 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 11:56:45,569 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...