/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 03:48:59,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 03:48:59,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 03:48:59,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 03:48:59,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 03:48:59,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 03:48:59,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 03:48:59,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 03:48:59,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 03:48:59,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 03:48:59,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 03:48:59,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 03:48:59,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 03:48:59,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 03:48:59,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 03:48:59,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 03:48:59,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 03:48:59,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 03:48:59,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 03:48:59,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 03:48:59,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 03:48:59,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 03:48:59,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 03:48:59,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 03:48:59,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 03:48:59,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 03:48:59,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 03:48:59,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 03:48:59,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 03:48:59,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 03:48:59,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 03:48:59,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 03:48:59,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 03:48:59,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 03:48:59,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 03:48:59,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 03:48:59,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 03:48:59,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 03:48:59,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 03:48:59,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 03:48:59,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 03:48:59,856 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 03:48:59,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 03:48:59,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 03:48:59,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 03:48:59,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 03:48:59,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 03:48:59,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 03:48:59,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 03:48:59,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 03:48:59,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 03:48:59,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 03:48:59,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 03:48:59,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 03:48:59,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 03:49:00,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 03:49:00,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 03:49:00,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 03:49:00,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 03:49:00,109 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 03:49:00,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-11 03:49:00,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e6d7118/a743716a65e44f859fce9de0ad38bc2f/FLAGb6be4e5bd [2021-03-11 03:49:00,568 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 03:49:00,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-11 03:49:00,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e6d7118/a743716a65e44f859fce9de0ad38bc2f/FLAGb6be4e5bd [2021-03-11 03:49:00,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e6d7118/a743716a65e44f859fce9de0ad38bc2f [2021-03-11 03:49:00,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 03:49:00,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 03:49:00,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 03:49:00,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 03:49:00,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 03:49:00,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 03:49:00" (1/1) ... [2021-03-11 03:49:00,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a4a2367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:00, skipping insertion in model container [2021-03-11 03:49:00,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 03:49:00" (1/1) ... [2021-03-11 03:49:00,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 03:49:00,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 03:49:01,144 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_46-escape_racefree.i[29913,29926] [2021-03-11 03:49:01,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 03:49:01,160 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 03:49:01,180 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_46-escape_racefree.i[29913,29926] [2021-03-11 03:49:01,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 03:49:01,247 INFO L208 MainTranslator]: Completed translation [2021-03-11 03:49:01,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01 WrapperNode [2021-03-11 03:49:01,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 03:49:01,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 03:49:01,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 03:49:01,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 03:49:01,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 03:49:01,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 03:49:01,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 03:49:01,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 03:49:01,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (1/1) ... [2021-03-11 03:49:01,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 03:49:01,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 03:49:01,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 03:49:01,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 03:49:01,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (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 [2021-03-11 03:49:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 03:49:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 03:49:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 03:49:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 03:49:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-11 03:49:01,405 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-11 03:49:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 03:49:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 03:49:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 03:49:01,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 03:49:01,407 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 03:49:01,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 03:49:01,650 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-11 03:49:01,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:49:01 BoogieIcfgContainer [2021-03-11 03:49:01,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 03:49:01,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 03:49:01,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 03:49:01,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 03:49:01,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 03:49:00" (1/3) ... [2021-03-11 03:49:01,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4c7c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:49:01, skipping insertion in model container [2021-03-11 03:49:01,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:49:01" (2/3) ... [2021-03-11 03:49:01,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4c7c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:49:01, skipping insertion in model container [2021-03-11 03:49:01,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:49:01" (3/3) ... [2021-03-11 03:49:01,655 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-03-11 03:49:01,659 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 03:49:01,661 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 03:49:01,662 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 03:49:01,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,691 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,692 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,692 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,692 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,696 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,696 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:49:01,703 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 03:49:01,715 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-11 03:49:01,740 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 03:49:01,740 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 03:49:01,740 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 03:49:01,740 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 03:49:01,740 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 03:49:01,740 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 03:49:01,740 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 03:49:01,741 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 03:49:01,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-03-11 03:49:01,805 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-03-11 03:49:01,805 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 03:49:01,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 9/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 143 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-11 03:49:01,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 99 transitions, 206 flow [2021-03-11 03:49:01,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 89 transitions, 181 flow [2021-03-11 03:49:01,839 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2021-03-11 03:49:01,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 03:49:01,840 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 03:49:01,842 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 03:49:01,842 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 03:49:01,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 03:49:01,846 INFO L82 PathProgramCache]: Analyzing trace with hash 602813051, now seen corresponding path program 1 times [2021-03-11 03:49:01,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 03:49:01,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588260324] [2021-03-11 03:49:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 03:49:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 03:49:02,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:49:02,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 03:49:02,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 03:49:02,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 03:49:02,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 03:49:02,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:49:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 03:49:02,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588260324] [2021-03-11 03:49:02,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 03:49:02,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 03:49:02,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546691401] [2021-03-11 03:49:02,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 03:49:02,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 03:49:02,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 03:49:02,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-11 03:49:02,152 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2021-03-11 03:49:02,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 89 transitions, 181 flow. Second operand has 9 states, 9 states have (on average 53.111111111111114) internal successors, (478), 9 states have internal predecessors, (478), 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) [2021-03-11 03:49:02,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 03:49:02,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2021-03-11 03:49:02,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 03:49:02,397 INFO L129 PetriNetUnfolder]: 41/291 cut-off events. [2021-03-11 03:49:02,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 03:49:02,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 291 events. 41/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1346 event pairs, 10 based on Foata normal form. 96/383 useless extension candidates. Maximal degree in co-relation 360. Up to 29 conditions per place. [2021-03-11 03:49:02,399 INFO L132 encePairwiseOnDemand]: 80/99 looper letters, 28 selfloop transitions, 4 changer transitions 37/110 dead transitions. [2021-03-11 03:49:02,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 110 transitions, 355 flow [2021-03-11 03:49:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 03:49:02,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 03:49:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 808 transitions. [2021-03-11 03:49:02,409 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5829725829725829 [2021-03-11 03:49:02,409 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 808 transitions. [2021-03-11 03:49:02,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 808 transitions. [2021-03-11 03:49:02,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 03:49:02,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 808 transitions. [2021-03-11 03:49:02,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.714285714285715) internal successors, (808), 14 states have internal predecessors, (808), 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) [2021-03-11 03:49:02,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2021-03-11 03:49:02,422 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2021-03-11 03:49:02,423 INFO L185 Difference]: Start difference. First operand has 84 places, 89 transitions, 181 flow. Second operand 14 states and 808 transitions. [2021-03-11 03:49:02,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 110 transitions, 355 flow [2021-03-11 03:49:02,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 110 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 03:49:02,427 INFO L241 Difference]: Finished difference. Result has 102 places, 73 transitions, 172 flow [2021-03-11 03:49:02,428 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=172, PETRI_PLACES=102, PETRI_TRANSITIONS=73} [2021-03-11 03:49:02,428 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, 18 predicate places. [2021-03-11 03:49:02,428 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 172 flow [2021-03-11 03:49:02,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 53.111111111111114) internal successors, (478), 9 states have internal predecessors, (478), 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) [2021-03-11 03:49:02,429 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 03:49:02,429 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 03:49:02,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 03:49:02,429 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 03:49:02,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 03:49:02,429 INFO L82 PathProgramCache]: Analyzing trace with hash -878337711, now seen corresponding path program 1 times [2021-03-11 03:49:02,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 03:49:02,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941535488] [2021-03-11 03:49:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 03:49:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 03:49:02,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:49:02,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 03:49:02,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 03:49:02,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 03:49:02,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:49:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 03:49:02,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941535488] [2021-03-11 03:49:02,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 03:49:02,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 03:49:02,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803635326] [2021-03-11 03:49:02,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 03:49:02,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 03:49:02,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 03:49:02,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 03:49:02,486 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 99 [2021-03-11 03:49:02,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 73 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2021-03-11 03:49:02,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 03:49:02,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 99 [2021-03-11 03:49:02,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 03:49:02,534 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-03-11 03:49:02,534 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 03:49:02,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 77 events. 0/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 7/84 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-11 03:49:02,535 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 20 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2021-03-11 03:49:02,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 73 transitions, 222 flow [2021-03-11 03:49:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 03:49:02,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 03:49:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 327 transitions. [2021-03-11 03:49:02,536 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2021-03-11 03:49:02,536 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 327 transitions. [2021-03-11 03:49:02,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 327 transitions. [2021-03-11 03:49:02,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 03:49:02,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 327 transitions. [2021-03-11 03:49:02,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 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) [2021-03-11 03:49:02,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:49:02,538 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:49:02,538 INFO L185 Difference]: Start difference. First operand has 102 places, 73 transitions, 172 flow. Second operand 5 states and 327 transitions. [2021-03-11 03:49:02,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 73 transitions, 222 flow [2021-03-11 03:49:02,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 202 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-11 03:49:02,540 INFO L241 Difference]: Finished difference. Result has 81 places, 73 transitions, 162 flow [2021-03-11 03:49:02,540 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2021-03-11 03:49:02,541 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2021-03-11 03:49:02,541 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 162 flow [2021-03-11 03:49:02,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2021-03-11 03:49:02,541 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 03:49:02,541 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 03:49:02,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 03:49:02,541 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 03:49:02,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 03:49:02,542 INFO L82 PathProgramCache]: Analyzing trace with hash 978019582, now seen corresponding path program 1 times [2021-03-11 03:49:02,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 03:49:02,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980855236] [2021-03-11 03:49:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 03:49:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 03:49:02,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:49:02,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 03:49:02,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 03:49:02,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 03:49:02,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 03:49:02,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 03:49:02,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 03:49:02,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 03:49:02,638 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-03-11 03:49:02,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 03:49:02,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 03:49:02,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 03:49:02,668 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-03-11 03:49:02,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 03:49:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 03:49:02,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 03:49:02,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:49:02,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:49:02,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:49:02,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 03:49:02,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980855236] [2021-03-11 03:49:02,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 03:49:02,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-11 03:49:02,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627161409] [2021-03-11 03:49:02,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-11 03:49:02,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 03:49:02,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-11 03:49:02,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-03-11 03:49:02,723 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 99 [2021-03-11 03:49:02,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 162 flow. Second operand has 17 states, 17 states have (on average 44.35294117647059) internal successors, (754), 17 states have internal predecessors, (754), 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) [2021-03-11 03:49:02,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 03:49:02,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 99 [2021-03-11 03:49:02,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 03:49:03,226 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-03-11 03:49:03,226 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 03:49:03,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 75 events. 0/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-03-11 03:49:03,227 INFO L132 encePairwiseOnDemand]: 79/99 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2021-03-11 03:49:03,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 71 transitions, 236 flow [2021-03-11 03:49:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 03:49:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 03:49:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 922 transitions. [2021-03-11 03:49:03,229 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4434824434824435 [2021-03-11 03:49:03,229 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 922 transitions. [2021-03-11 03:49:03,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 922 transitions. [2021-03-11 03:49:03,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 03:49:03,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 922 transitions. [2021-03-11 03:49:03,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 43.904761904761905) internal successors, (922), 21 states have internal predecessors, (922), 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) [2021-03-11 03:49:03,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 99.0) internal successors, (2178), 22 states have internal predecessors, (2178), 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) [2021-03-11 03:49:03,234 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 99.0) internal successors, (2178), 22 states have internal predecessors, (2178), 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) [2021-03-11 03:49:03,234 INFO L185 Difference]: Start difference. First operand has 81 places, 73 transitions, 162 flow. Second operand 21 states and 922 transitions. [2021-03-11 03:49:03,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 71 transitions, 236 flow [2021-03-11 03:49:03,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 71 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 03:49:03,235 INFO L241 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2021-03-11 03:49:03,235 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2021-03-11 03:49:03,236 INFO L335 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2021-03-11 03:49:03,236 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2021-03-11 03:49:03,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 44.35294117647059) internal successors, (754), 17 states have internal predecessors, (754), 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) [2021-03-11 03:49:03,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 03:49:03,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:49:03 BasicIcfg [2021-03-11 03:49:03,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 03:49:03,240 INFO L168 Benchmark]: Toolchain (without parser) took 2313.17 ms. Allocated memory was 255.9 MB in the beginning and 421.5 MB in the end (delta: 165.7 MB). Free memory was 234.0 MB in the beginning and 395.8 MB in the end (delta: -161.8 MB). Peak memory consumption was 112.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:49:03,240 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 03:49:03,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.03 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 233.4 MB in the beginning and 313.8 MB in the end (delta: -80.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 03:49:03,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.50 ms. Allocated memory is still 350.2 MB. Free memory was 313.8 MB in the beginning and 311.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:49:03,241 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 350.2 MB. Free memory was 311.7 MB in the beginning and 310.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 03:49:03,242 INFO L168 Benchmark]: RCFGBuilder took 326.92 ms. Allocated memory is still 350.2 MB. Free memory was 310.3 MB in the beginning and 284.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-11 03:49:03,242 INFO L168 Benchmark]: TraceAbstraction took 1587.32 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 283.7 MB in the beginning and 395.8 MB in the end (delta: -112.1 MB). Peak memory consumption was 69.7 MB. Max. memory is 16.0 GB. [2021-03-11 03:49:03,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 319.03 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 233.4 MB in the beginning and 313.8 MB in the end (delta: -80.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.50 ms. Allocated memory is still 350.2 MB. Free memory was 313.8 MB in the beginning and 311.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 350.2 MB. Free memory was 311.7 MB in the beginning and 310.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 326.92 ms. Allocated memory is still 350.2 MB. Free memory was 310.3 MB in the beginning and 284.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1587.32 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 283.7 MB in the beginning and 395.8 MB in the end (delta: -112.1 MB). Peak memory consumption was 69.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 19.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1500.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 853.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 79.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 179 SDslu, 334 SDs, 0 SdLazy, 337 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 150.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 678.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=0, InterpolantAutomatonStates: 40, 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: 10.1ms SsaConstructionTime, 83.4ms SatisfiabilityAnalysisTime, 356.9ms InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 850 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 correct! Received shutdown request...