/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:28:36,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:28:36,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:28:36,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:28:36,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:28:36,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:28:36,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:28:36,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:28:36,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:28:36,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:28:36,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:28:36,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:28:36,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:28:36,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:28:36,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:28:36,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:28:36,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:28:36,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:28:36,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:28:36,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:28:36,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:28:36,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:28:36,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:28:36,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:28:36,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:28:36,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:28:36,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:28:36,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:28:36,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-01-18 23:28:36,909 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:28:36,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:28:36,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:28:36,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:28:36,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:28:36,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:28:36,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:28:36,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:28:36,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:28:36,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:28:36,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:28:37,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:28:37,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:28:37,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:28:37,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:28:37,074 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:28:37,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-01-18 23:28:37,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa7322b8/09555dfbd32a458d92e2b9bed75ee38a/FLAG0d9085f0c [2022-01-18 23:28:37,539 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:28:37,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-01-18 23:28:37,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa7322b8/09555dfbd32a458d92e2b9bed75ee38a/FLAG0d9085f0c [2022-01-18 23:28:37,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa7322b8/09555dfbd32a458d92e2b9bed75ee38a [2022-01-18 23:28:37,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:28:37,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:28:37,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:28:37,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:28:37,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:28:37,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:28:37" (1/1) ... [2022-01-18 23:28:37,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51cb177b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:37, skipping insertion in model container [2022-01-18 23:28:37,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:28:37" (1/1) ... [2022-01-18 23:28:37,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:28:37,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:28:38,077 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_27-multiple-protecting2_true.i[1097,1110] [2022-01-18 23:28:38,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:28:38,174 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:28:38,181 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_27-multiple-protecting2_true.i[1097,1110] [2022-01-18 23:28:38,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:28:38,217 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:28:38,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38 WrapperNode [2022-01-18 23:28:38,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:28:38,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:28:38,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:28:38,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:28:38,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,266 INFO L137 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2022-01-18 23:28:38,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:28:38,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:28:38,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:28:38,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:28:38,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:28:38,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:28:38,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:28:38,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:28:38,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (1/1) ... [2022-01-18 23:28:38,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:28:38,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:28:38,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 23:28:38,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-01-18 23:28:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:28:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-18 23:28:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-18 23:28:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:28:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:28:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:28:38,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:28:38,410 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 23:28:38,478 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:28:38,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:28:38,658 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:28:38,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:28:38,663 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 23:28:38,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:28:38 BoogieIcfgContainer [2022-01-18 23:28:38,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:28:38,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:28:38,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:28:38,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:28:38,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:28:37" (1/3) ... [2022-01-18 23:28:38,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3389a845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:28:38, skipping insertion in model container [2022-01-18 23:28:38,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:38" (2/3) ... [2022-01-18 23:28:38,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3389a845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:28:38, skipping insertion in model container [2022-01-18 23:28:38,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:28:38" (3/3) ... [2022-01-18 23:28:38,669 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-01-18 23:28:38,672 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:28:38,672 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-18 23:28:38,672 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:28:38,699 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,699 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,699 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,700 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,701 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,702 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,702 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,702 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,702 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,702 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,702 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,703 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,704 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,704 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,704 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,704 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,704 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,704 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,712 WARN L322 ript$VariableManager]: TermVariabe t2_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,713 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,713 WARN L322 ript$VariableManager]: TermVariabe |t2_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,715 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,715 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:38,718 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 23:28:38,745 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:28:38,753 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 23:28:38,753 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-18 23:28:38,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 159 transitions, 334 flow [2022-01-18 23:28:38,799 INFO L129 PetriNetUnfolder]: 4/157 cut-off events. [2022-01-18 23:28:38,799 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-18 23:28:38,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 4/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-01-18 23:28:38,803 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 159 transitions, 334 flow [2022-01-18 23:28:38,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 137 transitions, 280 flow [2022-01-18 23:28:38,821 INFO L129 PetriNetUnfolder]: 1/91 cut-off events. [2022-01-18 23:28:38,821 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:28:38,821 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:38,821 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] [2022-01-18 23:28:38,822 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:38,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:38,825 INFO L85 PathProgramCache]: Analyzing trace with hash 811554038, now seen corresponding path program 1 times [2022-01-18 23:28:38,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:38,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070703681] [2022-01-18 23:28:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:38,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:39,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:39,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:39,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070703681] [2022-01-18 23:28:39,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070703681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:39,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:39,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:28:39,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063204283] [2022-01-18 23:28:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:39,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:28:39,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:39,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:28:39,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:28:39,151 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2022-01-18 23:28:39,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 280 flow. Second operand has 5 states, 5 states have (on average 123.4) internal successors, (617), 5 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:39,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2022-01-18 23:28:39,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:39,332 INFO L129 PetriNetUnfolder]: 93/563 cut-off events. [2022-01-18 23:28:39,332 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-18 23:28:39,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 563 events. 93/563 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2785 event pairs, 24 based on Foata normal form. 16/563 useless extension candidates. Maximal degree in co-relation 756. Up to 78 conditions per place. [2022-01-18 23:28:39,339 INFO L132 encePairwiseOnDemand]: 138/159 looper letters, 37 selfloop transitions, 23 changer transitions 5/170 dead transitions. [2022-01-18 23:28:39,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 170 transitions, 479 flow [2022-01-18 23:28:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 23:28:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 23:28:39,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1173 transitions. [2022-01-18 23:28:39,357 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8197064989517819 [2022-01-18 23:28:39,358 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1173 transitions. [2022-01-18 23:28:39,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1173 transitions. [2022-01-18 23:28:39,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:39,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1173 transitions. [2022-01-18 23:28:39,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.33333333333334) internal successors, (1173), 9 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,376 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,377 INFO L186 Difference]: Start difference. First operand has 141 places, 137 transitions, 280 flow. Second operand 9 states and 1173 transitions. [2022-01-18 23:28:39,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 170 transitions, 479 flow [2022-01-18 23:28:39,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 170 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 23:28:39,383 INFO L242 Difference]: Finished difference. Result has 151 places, 148 transitions, 415 flow [2022-01-18 23:28:39,384 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=415, PETRI_PLACES=151, PETRI_TRANSITIONS=148} [2022-01-18 23:28:39,386 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 10 predicate places. [2022-01-18 23:28:39,386 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 148 transitions, 415 flow [2022-01-18 23:28:39,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 123.4) internal successors, (617), 5 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,387 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:39,387 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:39,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:28:39,387 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:39,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash 235319527, now seen corresponding path program 1 times [2022-01-18 23:28:39,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:39,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417711648] [2022-01-18 23:28:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:39,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:39,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:39,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417711648] [2022-01-18 23:28:39,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417711648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:39,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:39,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:28:39,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375937714] [2022-01-18 23:28:39,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:39,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:28:39,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:39,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:28:39,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:28:39,527 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 159 [2022-01-18 23:28:39,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 148 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:39,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 159 [2022-01-18 23:28:39,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:39,807 INFO L129 PetriNetUnfolder]: 370/1820 cut-off events. [2022-01-18 23:28:39,807 INFO L130 PetriNetUnfolder]: For 150/150 co-relation queries the response was YES. [2022-01-18 23:28:39,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3125 conditions, 1820 events. 370/1820 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13606 event pairs, 95 based on Foata normal form. 91/1889 useless extension candidates. Maximal degree in co-relation 3058. Up to 551 conditions per place. [2022-01-18 23:28:39,817 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 50 selfloop transitions, 7 changer transitions 0/169 dead transitions. [2022-01-18 23:28:39,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 169 transitions, 573 flow [2022-01-18 23:28:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:28:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:28:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 614 transitions. [2022-01-18 23:28:39,819 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7723270440251573 [2022-01-18 23:28:39,819 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 614 transitions. [2022-01-18 23:28:39,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 614 transitions. [2022-01-18 23:28:39,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:39,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 614 transitions. [2022-01-18 23:28:39,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,822 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,822 INFO L186 Difference]: Start difference. First operand has 151 places, 148 transitions, 415 flow. Second operand 5 states and 614 transitions. [2022-01-18 23:28:39,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 169 transitions, 573 flow [2022-01-18 23:28:39,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 169 transitions, 556 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-18 23:28:39,833 INFO L242 Difference]: Finished difference. Result has 154 places, 151 transitions, 429 flow [2022-01-18 23:28:39,834 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=154, PETRI_TRANSITIONS=151} [2022-01-18 23:28:39,834 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 13 predicate places. [2022-01-18 23:28:39,834 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 151 transitions, 429 flow [2022-01-18 23:28:39,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:39,835 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:39,835 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] [2022-01-18 23:28:39,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:28:39,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1657823486, now seen corresponding path program 1 times [2022-01-18 23:28:39,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:39,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716703426] [2022-01-18 23:28:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:39,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:40,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:40,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716703426] [2022-01-18 23:28:40,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716703426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:40,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:40,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 23:28:40,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447799641] [2022-01-18 23:28:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:40,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 23:28:40,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 23:28:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 23:28:40,024 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 159 [2022-01-18 23:28:40,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 151 transitions, 429 flow. Second operand has 8 states, 8 states have (on average 121.625) internal successors, (973), 8 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:40,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 159 [2022-01-18 23:28:40,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:40,512 INFO L129 PetriNetUnfolder]: 215/1123 cut-off events. [2022-01-18 23:28:40,512 INFO L130 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2022-01-18 23:28:40,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1123 events. 215/1123 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7290 event pairs, 9 based on Foata normal form. 16/1128 useless extension candidates. Maximal degree in co-relation 2019. Up to 69 conditions per place. [2022-01-18 23:28:40,517 INFO L132 encePairwiseOnDemand]: 136/159 looper letters, 95 selfloop transitions, 103 changer transitions 7/311 dead transitions. [2022-01-18 23:28:40,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 311 transitions, 1467 flow [2022-01-18 23:28:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 23:28:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-18 23:28:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3310 transitions. [2022-01-18 23:28:40,523 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8006773101112724 [2022-01-18 23:28:40,523 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3310 transitions. [2022-01-18 23:28:40,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3310 transitions. [2022-01-18 23:28:40,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:40,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3310 transitions. [2022-01-18 23:28:40,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 127.3076923076923) internal successors, (3310), 26 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 159.0) internal successors, (4293), 27 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,537 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 159.0) internal successors, (4293), 27 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,537 INFO L186 Difference]: Start difference. First operand has 154 places, 151 transitions, 429 flow. Second operand 26 states and 3310 transitions. [2022-01-18 23:28:40,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 311 transitions, 1467 flow [2022-01-18 23:28:40,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 311 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 23:28:40,545 INFO L242 Difference]: Finished difference. Result has 185 places, 232 transitions, 1130 flow [2022-01-18 23:28:40,545 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1130, PETRI_PLACES=185, PETRI_TRANSITIONS=232} [2022-01-18 23:28:40,546 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 44 predicate places. [2022-01-18 23:28:40,547 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 232 transitions, 1130 flow [2022-01-18 23:28:40,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.625) internal successors, (973), 8 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,547 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:40,547 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] [2022-01-18 23:28:40,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:28:40,547 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1808695242, now seen corresponding path program 1 times [2022-01-18 23:28:40,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:40,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800635299] [2022-01-18 23:28:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:40,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:40,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:40,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800635299] [2022-01-18 23:28:40,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800635299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:40,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:40,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:28:40,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30468959] [2022-01-18 23:28:40,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:40,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:28:40,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:28:40,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:28:40,676 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 159 [2022-01-18 23:28:40,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 232 transitions, 1130 flow. Second operand has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:40,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 159 [2022-01-18 23:28:40,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:40,856 INFO L129 PetriNetUnfolder]: 268/1592 cut-off events. [2022-01-18 23:28:40,857 INFO L130 PetriNetUnfolder]: For 1417/1463 co-relation queries the response was YES. [2022-01-18 23:28:40,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3482 conditions, 1592 events. 268/1592 cut-off events. For 1417/1463 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 12265 event pairs, 49 based on Foata normal form. 21/1597 useless extension candidates. Maximal degree in co-relation 3416. Up to 203 conditions per place. [2022-01-18 23:28:40,865 INFO L132 encePairwiseOnDemand]: 147/159 looper letters, 81 selfloop transitions, 76 changer transitions 5/288 dead transitions. [2022-01-18 23:28:40,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 288 transitions, 1811 flow [2022-01-18 23:28:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 23:28:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 23:28:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1158 transitions. [2022-01-18 23:28:40,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8092243186582809 [2022-01-18 23:28:40,868 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1158 transitions. [2022-01-18 23:28:40,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1158 transitions. [2022-01-18 23:28:40,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:40,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1158 transitions. [2022-01-18 23:28:40,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.66666666666666) internal successors, (1158), 9 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,872 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,872 INFO L186 Difference]: Start difference. First operand has 185 places, 232 transitions, 1130 flow. Second operand 9 states and 1158 transitions. [2022-01-18 23:28:40,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 288 transitions, 1811 flow [2022-01-18 23:28:40,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 288 transitions, 1756 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-01-18 23:28:40,885 INFO L242 Difference]: Finished difference. Result has 192 places, 263 transitions, 1547 flow [2022-01-18 23:28:40,885 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=1083, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1547, PETRI_PLACES=192, PETRI_TRANSITIONS=263} [2022-01-18 23:28:40,886 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 51 predicate places. [2022-01-18 23:28:40,887 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 263 transitions, 1547 flow [2022-01-18 23:28:40,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,887 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:40,887 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] [2022-01-18 23:28:40,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 23:28:40,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash 569035373, now seen corresponding path program 1 times [2022-01-18 23:28:40,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053127441] [2022-01-18 23:28:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:40,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:40,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:40,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053127441] [2022-01-18 23:28:40,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053127441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:40,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:40,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:28:40,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945184968] [2022-01-18 23:28:40,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:40,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:28:40,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:28:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:28:40,986 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 159 [2022-01-18 23:28:40,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 263 transitions, 1547 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:40,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:40,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 159 [2022-01-18 23:28:40,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:41,263 INFO L129 PetriNetUnfolder]: 239/1751 cut-off events. [2022-01-18 23:28:41,263 INFO L130 PetriNetUnfolder]: For 1004/1006 co-relation queries the response was YES. [2022-01-18 23:28:41,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3651 conditions, 1751 events. 239/1751 cut-off events. For 1004/1006 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 13112 event pairs, 96 based on Foata normal form. 130/1873 useless extension candidates. Maximal degree in co-relation 3569. Up to 357 conditions per place. [2022-01-18 23:28:41,270 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 33 selfloop transitions, 18 changer transitions 2/197 dead transitions. [2022-01-18 23:28:41,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 197 transitions, 979 flow [2022-01-18 23:28:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:28:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:28:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2022-01-18 23:28:41,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7685534591194969 [2022-01-18 23:28:41,284 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2022-01-18 23:28:41,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2022-01-18 23:28:41,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:41,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2022-01-18 23:28:41,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 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) [2022-01-18 23:28:41,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,287 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,287 INFO L186 Difference]: Start difference. First operand has 192 places, 263 transitions, 1547 flow. Second operand 5 states and 611 transitions. [2022-01-18 23:28:41,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 197 transitions, 979 flow [2022-01-18 23:28:41,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 197 transitions, 945 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-01-18 23:28:41,294 INFO L242 Difference]: Finished difference. Result has 185 places, 188 transitions, 867 flow [2022-01-18 23:28:41,294 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=867, PETRI_PLACES=185, PETRI_TRANSITIONS=188} [2022-01-18 23:28:41,295 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 44 predicate places. [2022-01-18 23:28:41,295 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 188 transitions, 867 flow [2022-01-18 23:28:41,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,295 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:41,295 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:41,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 23:28:41,295 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash 530066106, now seen corresponding path program 1 times [2022-01-18 23:28:41,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:41,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132806877] [2022-01-18 23:28:41,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:41,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:41,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:41,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132806877] [2022-01-18 23:28:41,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132806877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:41,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:41,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 23:28:41,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120072498] [2022-01-18 23:28:41,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:41,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 23:28:41,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:41,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 23:28:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 23:28:41,488 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 159 [2022-01-18 23:28:41,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 188 transitions, 867 flow. Second operand has 7 states, 7 states have (on average 109.42857142857143) internal successors, (766), 7 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:41,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 159 [2022-01-18 23:28:41,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:41,695 INFO L129 PetriNetUnfolder]: 117/900 cut-off events. [2022-01-18 23:28:41,695 INFO L130 PetriNetUnfolder]: For 873/891 co-relation queries the response was YES. [2022-01-18 23:28:41,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 900 events. 117/900 cut-off events. For 873/891 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5434 event pairs, 31 based on Foata normal form. 36/917 useless extension candidates. Maximal degree in co-relation 2147. Up to 307 conditions per place. [2022-01-18 23:28:41,699 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 46 selfloop transitions, 8 changer transitions 12/159 dead transitions. [2022-01-18 23:28:41,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 159 transitions, 802 flow [2022-01-18 23:28:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:28:41,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:28:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 681 transitions. [2022-01-18 23:28:41,716 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7138364779874213 [2022-01-18 23:28:41,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 681 transitions. [2022-01-18 23:28:41,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 681 transitions. [2022-01-18 23:28:41,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:41,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 681 transitions. [2022-01-18 23:28:41,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,719 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,719 INFO L186 Difference]: Start difference. First operand has 185 places, 188 transitions, 867 flow. Second operand 6 states and 681 transitions. [2022-01-18 23:28:41,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 159 transitions, 802 flow [2022-01-18 23:28:41,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 159 transitions, 695 flow, removed 6 selfloop flow, removed 14 redundant places. [2022-01-18 23:28:41,724 INFO L242 Difference]: Finished difference. Result has 156 places, 139 transitions, 499 flow [2022-01-18 23:28:41,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=499, PETRI_PLACES=156, PETRI_TRANSITIONS=139} [2022-01-18 23:28:41,725 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 15 predicate places. [2022-01-18 23:28:41,725 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 139 transitions, 499 flow [2022-01-18 23:28:41,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.42857142857143) internal successors, (766), 7 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,725 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:41,725 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] [2022-01-18 23:28:41,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 23:28:41,725 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:41,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:41,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1228426076, now seen corresponding path program 1 times [2022-01-18 23:28:41,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:41,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129624520] [2022-01-18 23:28:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:41,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:41,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:41,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129624520] [2022-01-18 23:28:41,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129624520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:41,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:41,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 23:28:41,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387731629] [2022-01-18 23:28:41,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:41,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 23:28:41,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:41,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 23:28:41,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 23:28:41,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 159 [2022-01-18 23:28:41,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 139 transitions, 499 flow. Second operand has 8 states, 8 states have (on average 108.75) internal successors, (870), 8 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:41,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:41,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 159 [2022-01-18 23:28:41,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:42,030 INFO L129 PetriNetUnfolder]: 61/587 cut-off events. [2022-01-18 23:28:42,030 INFO L130 PetriNetUnfolder]: For 372/384 co-relation queries the response was YES. [2022-01-18 23:28:42,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 587 events. 61/587 cut-off events. For 372/384 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2993 event pairs, 20 based on Foata normal form. 22/603 useless extension candidates. Maximal degree in co-relation 1281. Up to 135 conditions per place. [2022-01-18 23:28:42,032 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 48 selfloop transitions, 7 changer transitions 6/148 dead transitions. [2022-01-18 23:28:42,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 148 transitions, 662 flow [2022-01-18 23:28:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:28:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:28:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 680 transitions. [2022-01-18 23:28:42,034 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7127882599580713 [2022-01-18 23:28:42,034 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 680 transitions. [2022-01-18 23:28:42,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 680 transitions. [2022-01-18 23:28:42,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:42,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 680 transitions. [2022-01-18 23:28:42,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.33333333333333) internal successors, (680), 6 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,037 INFO L186 Difference]: Start difference. First operand has 156 places, 139 transitions, 499 flow. Second operand 6 states and 680 transitions. [2022-01-18 23:28:42,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 148 transitions, 662 flow [2022-01-18 23:28:42,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 148 transitions, 625 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-01-18 23:28:42,040 INFO L242 Difference]: Finished difference. Result has 146 places, 132 transitions, 439 flow [2022-01-18 23:28:42,041 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=146, PETRI_TRANSITIONS=132} [2022-01-18 23:28:42,041 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2022-01-18 23:28:42,041 INFO L470 AbstractCegarLoop]: Abstraction has has 146 places, 132 transitions, 439 flow [2022-01-18 23:28:42,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.75) internal successors, (870), 8 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,042 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:42,042 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] [2022-01-18 23:28:42,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 23:28:42,042 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 23:28:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash 538088750, now seen corresponding path program 1 times [2022-01-18 23:28:42,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:42,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707730232] [2022-01-18 23:28:42,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:42,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:28:42,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:42,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707730232] [2022-01-18 23:28:42,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707730232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:42,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:42,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 23:28:42,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756679150] [2022-01-18 23:28:42,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:42,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 23:28:42,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 23:28:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 23:28:42,141 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 159 [2022-01-18 23:28:42,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 132 transitions, 439 flow. Second operand has 8 states, 8 states have (on average 122.625) internal successors, (981), 8 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:42,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 159 [2022-01-18 23:28:42,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:42,289 INFO L129 PetriNetUnfolder]: 44/474 cut-off events. [2022-01-18 23:28:42,290 INFO L130 PetriNetUnfolder]: For 113/115 co-relation queries the response was YES. [2022-01-18 23:28:42,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 474 events. 44/474 cut-off events. For 113/115 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2227 event pairs, 11 based on Foata normal form. 4/475 useless extension candidates. Maximal degree in co-relation 917. Up to 59 conditions per place. [2022-01-18 23:28:42,291 INFO L132 encePairwiseOnDemand]: 145/159 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2022-01-18 23:28:42,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 664 flow [2022-01-18 23:28:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 23:28:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-18 23:28:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1967 transitions. [2022-01-18 23:28:42,294 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.773191823899371 [2022-01-18 23:28:42,294 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1967 transitions. [2022-01-18 23:28:42,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1967 transitions. [2022-01-18 23:28:42,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:42,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1967 transitions. [2022-01-18 23:28:42,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.9375) internal successors, (1967), 16 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 159.0) internal successors, (2703), 17 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,301 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 159.0) internal successors, (2703), 17 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,301 INFO L186 Difference]: Start difference. First operand has 146 places, 132 transitions, 439 flow. Second operand 16 states and 1967 transitions. [2022-01-18 23:28:42,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 664 flow [2022-01-18 23:28:42,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 647 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-01-18 23:28:42,305 INFO L242 Difference]: Finished difference. Result has 152 places, 0 transitions, 0 flow [2022-01-18 23:28:42,306 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=152, PETRI_TRANSITIONS=0} [2022-01-18 23:28:42,308 INFO L334 CegarLoopForPetriNet]: 141 programPoint places, 11 predicate places. [2022-01-18 23:28:42,308 INFO L470 AbstractCegarLoop]: Abstraction has has 152 places, 0 transitions, 0 flow [2022-01-18 23:28:42,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 122.625) internal successors, (981), 8 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:28:42,310 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-18 23:28:42,310 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-18 23:28:42,310 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-18 23:28:42,310 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-18 23:28:42,310 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 6 remaining) [2022-01-18 23:28:42,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 6 remaining) [2022-01-18 23:28:42,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 23:28:42,314 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:28:42,316 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:28:42,316 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:28:42,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:28:42 BasicIcfg [2022-01-18 23:28:42,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:28:42,322 INFO L158 Benchmark]: Toolchain (without parser) took 4406.77ms. Allocated memory was 383.8MB in the beginning and 461.4MB in the end (delta: 77.6MB). Free memory was 327.7MB in the beginning and 201.6MB in the end (delta: 126.1MB). Peak memory consumption was 206.8MB. Max. memory is 16.0GB. [2022-01-18 23:28:42,322 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory is still 346.3MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:28:42,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.85ms. Allocated memory was 383.8MB in the beginning and 461.4MB in the end (delta: 77.6MB). Free memory was 327.5MB in the beginning and 425.8MB in the end (delta: -98.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. [2022-01-18 23:28:42,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.15ms. Allocated memory is still 461.4MB. Free memory was 425.8MB in the beginning and 423.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:28:42,324 INFO L158 Benchmark]: Boogie Preprocessor took 23.06ms. Allocated memory is still 461.4MB. Free memory was 423.7MB in the beginning and 422.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:28:42,326 INFO L158 Benchmark]: RCFGBuilder took 374.75ms. Allocated memory is still 461.4MB. Free memory was 422.6MB in the beginning and 403.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 23:28:42,326 INFO L158 Benchmark]: TraceAbstraction took 3655.44ms. Allocated memory is still 461.4MB. Free memory was 403.8MB in the beginning and 201.6MB in the end (delta: 202.2MB). Peak memory consumption was 203.2MB. Max. memory is 16.0GB. [2022-01-18 23:28:42,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory is still 346.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 286.85ms. Allocated memory was 383.8MB in the beginning and 461.4MB in the end (delta: 77.6MB). Free memory was 327.5MB in the beginning and 425.8MB in the end (delta: -98.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.15ms. Allocated memory is still 461.4MB. Free memory was 425.8MB in the beginning and 423.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.06ms. Allocated memory is still 461.4MB. Free memory was 423.7MB in the beginning and 422.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 374.75ms. Allocated memory is still 461.4MB. Free memory was 422.6MB in the beginning and 403.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 3655.44ms. Allocated memory is still 461.4MB. Free memory was 403.8MB in the beginning and 201.6MB in the end (delta: 202.2MB). Peak memory consumption was 203.2MB. 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 5 procedures, 196 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 513 mSDsluCounter, 618 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 498 mSDsCounter, 262 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 914 IncrementalHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 262 mSolverCounterUnsat, 176 mSDtfsCounter, 914 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1547occurred in iteration=4, InterpolantAutomatonStates: 82, 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, 1.0s InterpolantComputationTime, 628 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 620 ConstructedInterpolants, 0 QuantifiedInterpolants, 2713 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! [2022-01-18 23:28:42,362 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...