/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 08:31:22,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 08:31:22,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 08:31:22,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 08:31:22,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 08:31:22,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 08:31:22,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 08:31:22,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 08:31:22,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 08:31:22,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 08:31:22,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 08:31:22,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 08:31:22,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 08:31:22,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 08:31:22,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 08:31:22,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 08:31:22,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 08:31:22,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 08:31:22,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 08:31:22,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 08:31:22,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 08:31:22,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 08:31:22,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 08:31:22,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 08:31:22,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 08:31:22,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 08:31:22,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 08:31:22,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 08:31:22,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 08:31:22,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 08:31:22,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 08:31:22,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 08:31:22,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 08:31:22,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 08:31:22,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 08:31:22,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 08:31:22,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 08:31:22,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 08:31:22,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 08:31:22,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 08:31:22,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 08:31:22,704 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-RepeatedSemanticLbe.epf [2021-06-11 08:31:22,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 08:31:22,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 08:31:22,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 08:31:22,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 08:31:22,739 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 08:31:22,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 08:31:22,739 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 08:31:22,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 08:31:22,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 08:31:22,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 08:31:22,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 08:31:22,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 08:31:22,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 08:31:22,740 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 08:31:22,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 08:31:22,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 08:31:22,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 08:31:22,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 08:31:22,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 08:31:22,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 08:31:22,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 08:31:22,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 08:31:22,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 08:31:22,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 08:31:22,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 08:31:22,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 08:31:22,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 08:31:22,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 08:31:22,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 08:31:22,742 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 08:31:22,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 08:31:23,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 08:31:23,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 08:31:23,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 08:31:23,016 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 08:31:23,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-06-11 08:31:23,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20cce3eeb/8534a4ce5d924eef9f85fe27c5151e06/FLAG333bf2c6c [2021-06-11 08:31:23,486 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 08:31:23,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-06-11 08:31:23,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20cce3eeb/8534a4ce5d924eef9f85fe27c5151e06/FLAG333bf2c6c [2021-06-11 08:31:23,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20cce3eeb/8534a4ce5d924eef9f85fe27c5151e06 [2021-06-11 08:31:23,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 08:31:23,514 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 08:31:23,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 08:31:23,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 08:31:23,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 08:31:23,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4260919f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23, skipping insertion in model container [2021-06-11 08:31:23,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 08:31:23,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 08:31:23,802 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-06-11 08:31:23,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 08:31:23,829 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 08:31:23,864 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-06-11 08:31:23,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 08:31:23,923 INFO L208 MainTranslator]: Completed translation [2021-06-11 08:31:23,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23 WrapperNode [2021-06-11 08:31:23,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 08:31:23,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 08:31:23,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 08:31:23,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 08:31:23,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 08:31:23,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 08:31:23,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 08:31:23,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 08:31:23,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... [2021-06-11 08:31:23,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 08:31:24,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 08:31:24,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 08:31:24,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 08:31:24,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 08:31:24,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-11 08:31:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 08:31:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-11 08:31:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 08:31:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-06-11 08:31:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-06-11 08:31:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 08:31:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 08:31:24,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 08:31:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 08:31:24,051 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 08:31:24,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 08:31:24,357 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-06-11 08:31:24,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 08:31:24 BoogieIcfgContainer [2021-06-11 08:31:24,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 08:31:24,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 08:31:24,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 08:31:24,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 08:31:24,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 08:31:23" (1/3) ... [2021-06-11 08:31:24,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f8de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 08:31:24, skipping insertion in model container [2021-06-11 08:31:24,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 08:31:23" (2/3) ... [2021-06-11 08:31:24,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f8de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 08:31:24, skipping insertion in model container [2021-06-11 08:31:24,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 08:31:24" (3/3) ... [2021-06-11 08:31:24,363 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-06-11 08:31:24,367 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 08:31:24,371 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 08:31:24,372 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 08:31:24,401 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,401 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,401 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,401 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,401 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,401 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,402 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,403 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,403 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,404 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,404 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,404 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,404 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,404 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,405 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,406 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,407 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,408 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,409 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,411 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,411 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,413 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,416 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,416 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,416 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,416 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,416 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,416 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,417 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,417 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,418 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,418 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,418 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,418 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,418 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 08:31:24,425 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-11 08:31:24,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-11 08:31:24,461 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 08:31:24,461 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 08:31:24,461 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 08:31:24,461 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 08:31:24,461 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 08:31:24,461 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 08:31:24,462 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 08:31:24,462 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 08:31:24,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 96 transitions, 200 flow [2021-06-11 08:31:24,516 INFO L129 PetriNetUnfolder]: 9/95 cut-off events. [2021-06-11 08:31:24,516 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-11 08:31:24,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 9/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-06-11 08:31:24,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 96 transitions, 200 flow [2021-06-11 08:31:24,524 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 86 transitions, 175 flow [2021-06-11 08:31:24,525 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 08:31:24,534 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 86 transitions, 175 flow [2021-06-11 08:31:24,538 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 86 transitions, 175 flow [2021-06-11 08:31:24,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 86 transitions, 175 flow [2021-06-11 08:31:24,567 INFO L129 PetriNetUnfolder]: 9/86 cut-off events. [2021-06-11 08:31:24,568 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 08:31:24,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 9/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-06-11 08:31:24,575 INFO L151 LiptonReduction]: Number of co-enabled transitions 1386 [2021-06-11 08:31:24,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:24,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:24,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:24,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 08:31:24,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:24,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:24,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 08:31:24,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:24,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:24,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:24,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:25,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:25,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 08:31:25,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:25,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:25,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 08:31:25,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-11 08:31:25,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:25,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:25,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 08:31:25,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 08:31:25,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:25,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:25,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:25,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 08:31:25,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 08:31:26,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:26,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 08:31:26,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 08:31:26,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 08:31:26,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:26,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 08:31:26,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 08:31:26,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 08:31:26,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 08:31:26,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 08:31:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 08:31:26,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 08:31:26,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 08:31:26,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:26,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:26,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:26,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:26,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:26,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 08:31:27,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:27,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:27,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:27,376 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-06-11 08:31:27,609 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-06-11 08:31:27,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 08:31:27,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 08:31:27,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 08:31:27,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 08:31:27,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-06-11 08:31:27,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-06-11 08:31:27,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 08:31:27,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 08:31:27,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 08:31:27,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 08:31:27,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:27,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 08:31:27,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 08:31:27,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,963 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-06-11 08:31:27,963 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 08:31:27,982 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:27,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:28,567 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2021-06-11 08:31:28,799 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-06-11 08:31:29,345 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2021-06-11 08:31:29,604 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-06-11 08:31:29,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 08:31:29,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 08:31:29,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 08:31:29,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 08:31:29,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-06-11 08:31:29,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-11 08:31:29,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 08:31:29,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-06-11 08:31:29,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-06-11 08:31:29,637 INFO L163 LiptonReduction]: Checked pairs total: 2792 [2021-06-11 08:31:29,637 INFO L165 LiptonReduction]: Total number of compositions: 80 [2021-06-11 08:31:29,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5114 [2021-06-11 08:31:29,647 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-06-11 08:31:29,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 08:31:29,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 08:31:29,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-06-11 08:31:29,648 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 08:31:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 08:31:29,653 INFO L82 PathProgramCache]: Analyzing trace with hash 351602258, now seen corresponding path program 1 times [2021-06-11 08:31:29,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 08:31:29,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185156827] [2021-06-11 08:31:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 08:31:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 08:31:29,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 08:31:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 08:31:29,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185156827] [2021-06-11 08:31:29,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 08:31:29,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 08:31:29,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109839072] [2021-06-11 08:31:29,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 08:31:29,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 08:31:29,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 08:31:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 08:31:29,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 176 [2021-06-11 08:31:29,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2021-06-11 08:31:29,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 08:31:29,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 176 [2021-06-11 08:31:29,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 08:31:29,829 INFO L129 PetriNetUnfolder]: 11/60 cut-off events. [2021-06-11 08:31:29,829 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 08:31:29,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 60 events. 11/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 200 event pairs, 4 based on Foata normal form. 14/70 useless extension candidates. Maximal degree in co-relation 92. Up to 20 conditions per place. [2021-06-11 08:31:29,830 INFO L132 encePairwiseOnDemand]: 163/176 looper letters, 5 selfloop transitions, 2 changer transitions 9/23 dead transitions. [2021-06-11 08:31:29,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 75 flow [2021-06-11 08:31:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 08:31:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 08:31:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2021-06-11 08:31:29,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5056818181818182 [2021-06-11 08:31:29,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2021-06-11 08:31:29,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2021-06-11 08:31:29,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 08:31:29,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2021-06-11 08:31:29,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-06-11 08:31:29,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-06-11 08:31:29,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-06-11 08:31:29,848 INFO L185 Difference]: Start difference. First operand has 23 places, 27 transitions, 57 flow. Second operand 3 states and 267 transitions. [2021-06-11 08:31:29,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 23 transitions, 75 flow [2021-06-11 08:31:29,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 08:31:29,851 INFO L241 Difference]: Finished difference. Result has 25 places, 14 transitions, 40 flow [2021-06-11 08:31:29,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2021-06-11 08:31:29,852 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2021-06-11 08:31:29,853 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 08:31:29,853 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 14 transitions, 40 flow [2021-06-11 08:31:29,853 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 14 transitions, 40 flow [2021-06-11 08:31:29,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 14 transitions, 40 flow [2021-06-11 08:31:29,855 INFO L129 PetriNetUnfolder]: 1/16 cut-off events. [2021-06-11 08:31:29,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 08:31:29,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 16 events. 1/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 1 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2021-06-11 08:31:29,855 INFO L151 LiptonReduction]: Number of co-enabled transitions 44 [2021-06-11 08:31:29,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:29,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:29,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:30,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:30,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 08:31:30,070 INFO L163 LiptonReduction]: Checked pairs total: 102 [2021-06-11 08:31:30,070 INFO L165 LiptonReduction]: Total number of compositions: 4 [2021-06-11 08:31:30,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 217 [2021-06-11 08:31:30,071 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 34 flow [2021-06-11 08:31:30,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2021-06-11 08:31:30,071 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 08:31:30,071 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 08:31:30,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 08:31:30,071 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 08:31:30,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 08:31:30,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1993649197, now seen corresponding path program 1 times [2021-06-11 08:31:30,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 08:31:30,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483209030] [2021-06-11 08:31:30,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 08:31:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 08:31:30,162 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-06-11 08:31:30,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 08:31:30,170 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-06-11 08:31:30,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 08:31:30,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:30,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 08:31:30,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 08:31:30,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 08:31:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 08:31:30,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483209030] [2021-06-11 08:31:30,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 08:31:30,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 08:31:30,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576050660] [2021-06-11 08:31:30,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 08:31:30,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 08:31:30,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 08:31:30,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 08:31:30,191 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 180 [2021-06-11 08:31:30,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 11 transitions, 34 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-06-11 08:31:30,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 08:31:30,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 180 [2021-06-11 08:31:30,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 08:31:30,244 INFO L129 PetriNetUnfolder]: 7/31 cut-off events. [2021-06-11 08:31:30,244 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-06-11 08:31:30,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 31 events. 7/31 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 4 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 64. Up to 15 conditions per place. [2021-06-11 08:31:30,245 INFO L132 encePairwiseOnDemand]: 173/180 looper letters, 3 selfloop transitions, 7 changer transitions 2/14 dead transitions. [2021-06-11 08:31:30,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 64 flow [2021-06-11 08:31:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 08:31:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 08:31:30,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2021-06-11 08:31:30,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5375 [2021-06-11 08:31:30,250 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2021-06-11 08:31:30,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2021-06-11 08:31:30,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 08:31:30,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2021-06-11 08:31:30,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2021-06-11 08:31:30,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2021-06-11 08:31:30,256 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2021-06-11 08:31:30,256 INFO L185 Difference]: Start difference. First operand has 17 places, 11 transitions, 34 flow. Second operand 4 states and 387 transitions. [2021-06-11 08:31:30,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 64 flow [2021-06-11 08:31:30,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 08:31:30,257 INFO L241 Difference]: Finished difference. Result has 19 places, 11 transitions, 52 flow [2021-06-11 08:31:30,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2021-06-11 08:31:30,258 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, -4 predicate places. [2021-06-11 08:31:30,258 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 08:31:30,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 11 transitions, 52 flow [2021-06-11 08:31:30,258 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 11 transitions, 52 flow [2021-06-11 08:31:30,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 18 places, 11 transitions, 52 flow [2021-06-11 08:31:30,262 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-06-11 08:31:30,262 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 08:31:30,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-06-11 08:31:30,262 INFO L151 LiptonReduction]: Number of co-enabled transitions 12 [2021-06-11 08:31:30,263 INFO L163 LiptonReduction]: Checked pairs total: 5 [2021-06-11 08:31:30,263 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 08:31:30,263 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 08:31:30,266 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 52 flow [2021-06-11 08:31:30,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-06-11 08:31:30,266 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 08:31:30,266 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 08:31:30,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 08:31:30,266 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 08:31:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 08:31:30,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1379728125, now seen corresponding path program 1 times [2021-06-11 08:31:30,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 08:31:30,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653858845] [2021-06-11 08:31:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 08:31:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 08:31:30,301 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 08:31:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 08:31:30,316 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 08:31:30,329 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-11 08:31:30,329 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-11 08:31:30,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 08:31:30,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 08:31:30 BasicIcfg [2021-06-11 08:31:30,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 08:31:30,346 INFO L168 Benchmark]: Toolchain (without parser) took 6832.15 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 293.3 MB in the beginning and 344.8 MB in the end (delta: -51.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.0 GB. [2021-06-11 08:31:30,346 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 331.4 MB. Free memory is still 311.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 08:31:30,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.96 ms. Allocated memory is still 331.4 MB. Free memory was 293.2 MB in the beginning and 293.9 MB in the end (delta: -731.5 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-11 08:31:30,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.64 ms. Allocated memory is still 331.4 MB. Free memory was 293.9 MB in the beginning and 291.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 08:31:30,347 INFO L168 Benchmark]: Boogie Preprocessor took 25.92 ms. Allocated memory is still 331.4 MB. Free memory was 291.8 MB in the beginning and 289.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 08:31:30,347 INFO L168 Benchmark]: RCFGBuilder took 357.71 ms. Allocated memory is still 331.4 MB. Free memory was 289.7 MB in the beginning and 262.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-11 08:31:30,347 INFO L168 Benchmark]: TraceAbstraction took 5985.96 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 262.4 MB in the beginning and 344.8 MB in the end (delta: -82.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 08:31:30,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 331.4 MB. Free memory is still 311.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 407.96 ms. Allocated memory is still 331.4 MB. Free memory was 293.2 MB in the beginning and 293.9 MB in the end (delta: -731.5 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.64 ms. Allocated memory is still 331.4 MB. Free memory was 293.9 MB in the beginning and 291.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.92 ms. Allocated memory is still 331.4 MB. Free memory was 291.8 MB in the beginning and 289.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 357.71 ms. Allocated memory is still 331.4 MB. Free memory was 289.7 MB in the beginning and 262.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5985.96 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 262.4 MB in the beginning and 344.8 MB in the end (delta: -82.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5099.5ms, 81 PlacesBefore, 23 PlacesAfterwards, 86 TransitionsBefore, 27 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 80 TotalNumberOfCompositions, 2792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1500, positive: 1382, positive conditional: 0, positive unconditional: 1382, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1030, positive: 985, positive conditional: 0, positive unconditional: 985, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1030, positive: 985, positive conditional: 0, positive unconditional: 985, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1030, positive: 908, positive conditional: 0, positive unconditional: 908, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 122, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 185, negative conditional: 0, negative unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1500, positive: 397, positive conditional: 0, positive unconditional: 397, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 1030, unknown conditional: 0, unknown unconditional: 1030] , Statistics on independence cache: Total cache size (in pairs): 1925, Positive cache size: 1881, Positive conditional cache size: 0, Positive unconditional cache size: 1881, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 217.0ms, 25 PlacesBefore, 17 PlacesAfterwards, 14 TransitionsBefore, 11 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 2029, Positive cache size: 1980, Positive conditional cache size: 0, Positive unconditional cache size: 1980, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5ms, 19 PlacesBefore, 18 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2029, Positive cache size: 1980, Positive conditional cache size: 0, Positive unconditional cache size: 1980, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49 - CounterExampleResult [Line: 684]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L700] 0 pthread_t id; [L701] 0 int i = 0; [L702] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={7:0}, arg={5:0}, mutex1={9:0}, mutex2={6:0}] [L693] 1 int *p = (int *) arg; [L695] EXPR 1 \read(*p) [L695] 1 (*p)++ VAL [\read(*p)=0, __global_lock={7:0}, arg={5:0}, arg={5:0}, mutex1={9:0}, mutex2={6:0}, p={5:0}] [L704] 0 \read(i) [L684] COND TRUE 0 !(cond) [L684] 0 reach_error() VAL [__global_lock={7:0}, arg={5:0}, arg={5:0}, mutex1={9:0}, mutex2={6:0}, p={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 5872.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 120.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5183.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 36 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.0ms SsaConstructionTime, 73.1ms SatisfiabilityAnalysisTime, 140.2ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...