/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-SemanticLbe.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-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 21:20:54,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 21:20:54,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 21:20:54,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 21:20:54,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 21:20:54,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 21:20:54,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 21:20:54,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 21:20:54,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 21:20:54,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 21:20:54,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 21:20:54,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 21:20:54,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 21:20:54,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 21:20:54,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 21:20:54,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 21:20:54,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 21:20:54,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 21:20:54,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 21:20:54,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 21:20:54,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 21:20:54,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 21:20:54,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 21:20:54,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 21:20:54,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 21:20:54,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 21:20:54,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 21:20:54,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 21:20:54,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 21:20:54,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 21:20:54,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 21:20:54,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 21:20:54,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 21:20:54,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 21:20:54,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 21:20:54,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 21:20:54,843 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-SemanticLbe.epf [2021-03-24 21:20:54,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 21:20:54,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 21:20:54,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 21:20:54,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 21:20:54,881 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 21:20:54,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 21:20:54,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 21:20:54,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 21:20:54,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 21:20:54,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 21:20:54,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 21:20:54,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 21:20:54,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 21:20:54,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 21:20:54,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 21:20:54,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 21:20:54,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 21:20:54,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 21:20:54,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 21:20:54,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 21:20:54,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 21:20:54,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 21:20:54,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 21:20:54,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 21:20:54,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 21:20:54,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 21:20:54,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 21:20:54,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 21:20:54,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 21:20:55,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 21:20:55,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 21:20:55,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 21:20:55,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 21:20:55,234 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 21:20:55,235 INFO L432 ainManager$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 [2021-03-24 21:20:55,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7653c93e9/94c3a6e5d0d24841afb700f1088cd216/FLAG40b59bc7a [2021-03-24 21:20:56,193 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 21:20:56,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-24 21:20:56,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7653c93e9/94c3a6e5d0d24841afb700f1088cd216/FLAG40b59bc7a [2021-03-24 21:20:56,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7653c93e9/94c3a6e5d0d24841afb700f1088cd216 [2021-03-24 21:20:56,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 21:20:56,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 21:20:56,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 21:20:56,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 21:20:56,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 21:20:56,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e22898e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56, skipping insertion in model container [2021-03-24 21:20:56,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 21:20:56,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 21:20:56,658 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] [2021-03-24 21:20:56,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 21:20:56,681 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 21:20:56,709 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] [2021-03-24 21:20:56,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 21:20:56,792 INFO L208 MainTranslator]: Completed translation [2021-03-24 21:20:56,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56 WrapperNode [2021-03-24 21:20:56,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 21:20:56,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 21:20:56,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 21:20:56,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 21:20:56,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 21:20:56,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 21:20:56,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 21:20:56,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 21:20:56,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (1/1) ... [2021-03-24 21:20:56,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 21:20:56,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 21:20:56,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 21:20:56,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 21:20:56,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (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 [2021-03-24 21:20:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 21:20:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 21:20:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 21:20:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 21:20:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-24 21:20:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-24 21:20:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 21:20:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 21:20:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 21:20:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 21:20:56,942 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 21:20:57,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 21:20:57,306 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-24 21:20:57,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 09:20:57 BoogieIcfgContainer [2021-03-24 21:20:57,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 21:20:57,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 21:20:57,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 21:20:57,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 21:20:57,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 09:20:56" (1/3) ... [2021-03-24 21:20:57,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c5419f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 09:20:57, skipping insertion in model container [2021-03-24 21:20:57,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:20:56" (2/3) ... [2021-03-24 21:20:57,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c5419f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 09:20:57, skipping insertion in model container [2021-03-24 21:20:57,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 09:20:57" (3/3) ... [2021-03-24 21:20:57,314 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-03-24 21:20:57,319 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 21:20:57,323 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 21:20:57,323 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 21:20:57,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,345 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,346 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,346 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,346 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,346 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,347 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,350 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,350 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,351 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,351 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,351 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,351 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,351 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,351 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,352 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,353 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,359 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,360 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 21:20:57,365 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-24 21:20:57,378 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-24 21:20:57,404 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 21:20:57,404 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 21:20:57,404 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 21:20:57,404 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 21:20:57,404 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 21:20:57,404 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 21:20:57,404 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 21:20:57,404 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 21:20:57,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-03-24 21:20:57,447 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-03-24 21:20:57,448 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 21:20:57,451 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. [2021-03-24 21:20:57,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 99 transitions, 206 flow [2021-03-24 21:20:57,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 89 transitions, 181 flow [2021-03-24 21:20:57,456 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 21:20:57,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 89 transitions, 181 flow [2021-03-24 21:20:57,469 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 89 transitions, 181 flow [2021-03-24 21:20:57,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 181 flow [2021-03-24 21:20:57,485 INFO L129 PetriNetUnfolder]: 9/89 cut-off events. [2021-03-24 21:20:57,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 21:20:57,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 9/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-24 21:20:57,488 INFO L142 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-24 21:20:58,863 INFO L154 LiptonReduction]: Checked pairs total: 829 [2021-03-24 21:20:58,863 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-24 21:20:58,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1410 [2021-03-24 21:20:58,876 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2021-03-24 21:20:58,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 21:20:58,876 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 21:20:58,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 21:20:58,877 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 21:20:58,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 21:20:58,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1156551475, now seen corresponding path program 1 times [2021-03-24 21:20:58,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 21:20:58,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665072419] [2021-03-24 21:20:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 21:20:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 21:20:59,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 21:20:59,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 21:20:59,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 21:20:59,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 21:20:59,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 21:20:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 21:20:59,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665072419] [2021-03-24 21:20:59,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 21:20:59,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 21:20:59,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173495267] [2021-03-24 21:20:59,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 21:20:59,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 21:20:59,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 21:20:59,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-24 21:20:59,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2021-03-24 21:20:59,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 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) [2021-03-24 21:20:59,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 21:20:59,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2021-03-24 21:20:59,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 21:20:59,335 INFO L129 PetriNetUnfolder]: 41/237 cut-off events. [2021-03-24 21:20:59,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 21:20:59,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 237 events. 41/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1185 event pairs, 10 based on Foata normal form. 93/325 useless extension candidates. Maximal degree in co-relation 332. Up to 34 conditions per place. [2021-03-24 21:20:59,339 INFO L132 encePairwiseOnDemand]: 126/143 looper letters, 14 selfloop transitions, 2 changer transitions 36/77 dead transitions. [2021-03-24 21:20:59,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 257 flow [2021-03-24 21:20:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 21:20:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 21:20:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 982 transitions. [2021-03-24 21:20:59,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5722610722610723 [2021-03-24 21:20:59,359 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 982 transitions. [2021-03-24 21:20:59,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 982 transitions. [2021-03-24 21:20:59,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 21:20:59,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 982 transitions. [2021-03-24 21:20:59,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.83333333333333) internal successors, (982), 12 states have internal predecessors, (982), 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) [2021-03-24 21:20:59,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 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) [2021-03-24 21:20:59,380 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 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) [2021-03-24 21:20:59,382 INFO L185 Difference]: Start difference. First operand has 50 places, 55 transitions, 113 flow. Second operand 12 states and 982 transitions. [2021-03-24 21:20:59,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 257 flow [2021-03-24 21:20:59,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 77 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 21:20:59,387 INFO L241 Difference]: Finished difference. Result has 67 places, 41 transitions, 104 flow [2021-03-24 21:20:59,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=104, PETRI_PLACES=67, PETRI_TRANSITIONS=41} [2021-03-24 21:20:59,390 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2021-03-24 21:20:59,390 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 41 transitions, 104 flow [2021-03-24 21:20:59,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 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) [2021-03-24 21:20:59,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 21:20:59,391 INFO L263 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] [2021-03-24 21:20:59,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 21:20:59,391 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 21:20:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 21:20:59,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1959786695, now seen corresponding path program 1 times [2021-03-24 21:20:59,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 21:20:59,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543459322] [2021-03-24 21:20:59,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 21:20:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 21:20:59,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 21:20:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 21:20:59,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 21:20:59,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 21:20:59,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 21:20:59,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 21:20:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 21:20:59,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543459322] [2021-03-24 21:20:59,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 21:20:59,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 21:20:59,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104024659] [2021-03-24 21:20:59,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 21:20:59,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 21:20:59,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 21:20:59,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 21:20:59,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 143 [2021-03-24 21:20:59,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 41 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 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) [2021-03-24 21:20:59,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 21:20:59,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 143 [2021-03-24 21:20:59,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 21:20:59,593 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-03-24 21:20:59,593 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-24 21:20:59,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 45 events. 0/45 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 7/52 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-24 21:20:59,593 INFO L132 encePairwiseOnDemand]: 138/143 looper letters, 10 selfloop transitions, 5 changer transitions 0/41 dead transitions. [2021-03-24 21:20:59,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 41 transitions, 134 flow [2021-03-24 21:20:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 21:20:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 21:20:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 367 transitions. [2021-03-24 21:20:59,595 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5132867132867133 [2021-03-24 21:20:59,595 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 367 transitions. [2021-03-24 21:20:59,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 367 transitions. [2021-03-24 21:20:59,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 21:20:59,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 367 transitions. [2021-03-24 21:20:59,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 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) [2021-03-24 21:20:59,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 21:20:59,599 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 21:20:59,599 INFO L185 Difference]: Start difference. First operand has 67 places, 41 transitions, 104 flow. Second operand 5 states and 367 transitions. [2021-03-24 21:20:59,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 41 transitions, 134 flow [2021-03-24 21:20:59,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 41 transitions, 118 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-24 21:20:59,600 INFO L241 Difference]: Finished difference. Result has 49 places, 41 transitions, 98 flow [2021-03-24 21:20:59,601 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2021-03-24 21:20:59,601 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2021-03-24 21:20:59,601 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 98 flow [2021-03-24 21:20:59,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 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) [2021-03-24 21:20:59,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 21:20:59,602 INFO L263 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] [2021-03-24 21:20:59,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 21:20:59,602 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 21:20:59,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 21:20:59,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2130575564, now seen corresponding path program 1 times [2021-03-24 21:20:59,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 21:20:59,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417346113] [2021-03-24 21:20:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 21:20:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 21:20:59,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 21:20:59,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 21:20:59,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 21:20:59,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 21:20:59,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 21:20:59,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 21:20:59,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 21:20:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 21:20:59,787 INFO L142 QuantifierPusher]: treesize reduction 16, result has 54.3 percent of original size [2021-03-24 21:20:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 21:20:59,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 21:20:59,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 21:20:59,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 21:20:59,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 21:20:59,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 21:20:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 21:20:59,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417346113] [2021-03-24 21:20:59,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 21:20:59,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 21:20:59,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336136627] [2021-03-24 21:20:59,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 21:20:59,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 21:20:59,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 21:20:59,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-03-24 21:20:59,852 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 143 [2021-03-24 21:20:59,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 98 flow. Second operand has 13 states, 13 states have (on average 65.76923076923077) internal successors, (855), 13 states have internal predecessors, (855), 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) [2021-03-24 21:20:59,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 21:20:59,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 143 [2021-03-24 21:20:59,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 21:21:00,143 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-03-24 21:21:00,143 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 21:21:00,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 44 events. 0/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-24 21:21:00,144 INFO L132 encePairwiseOnDemand]: 126/143 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-03-24 21:21:00,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 40 transitions, 140 flow [2021-03-24 21:21:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 21:21:00,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 21:21:00,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1175 transitions. [2021-03-24 21:21:00,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4564879564879565 [2021-03-24 21:21:00,147 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1175 transitions. [2021-03-24 21:21:00,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1175 transitions. [2021-03-24 21:21:00,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 21:21:00,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1175 transitions. [2021-03-24 21:21:00,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 65.27777777777777) internal successors, (1175), 18 states have internal predecessors, (1175), 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) [2021-03-24 21:21:00,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 143.0) internal successors, (2717), 19 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 21:21:00,154 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 143.0) internal successors, (2717), 19 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 21:21:00,154 INFO L185 Difference]: Start difference. First operand has 49 places, 41 transitions, 98 flow. Second operand 18 states and 1175 transitions. [2021-03-24 21:21:00,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 40 transitions, 140 flow [2021-03-24 21:21:00,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 40 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 21:21:00,155 INFO L241 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2021-03-24 21:21:00,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2021-03-24 21:21:00,156 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2021-03-24 21:21:00,156 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2021-03-24 21:21:00,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 65.76923076923077) internal successors, (855), 13 states have internal predecessors, (855), 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) [2021-03-24 21:21:00,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 21:21:00,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 09:21:00 BasicIcfg [2021-03-24 21:21:00,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 21:21:00,160 INFO L168 Benchmark]: Toolchain (without parser) took 3835.88 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 234.6 MB in the beginning and 263.3 MB in the end (delta: -28.7 MB). Peak memory consumption was 143.0 MB. Max. memory is 16.0 GB. [2021-03-24 21:21:00,161 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 21:21:00,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.18 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 234.2 MB in the beginning and 319.9 MB in the end (delta: -85.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 21:21:00,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.03 ms. Allocated memory is still 356.5 MB. Free memory was 319.9 MB in the beginning and 317.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 21:21:00,162 INFO L168 Benchmark]: Boogie Preprocessor took 30.26 ms. Allocated memory is still 356.5 MB. Free memory was 317.8 MB in the beginning and 316.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 21:21:00,162 INFO L168 Benchmark]: RCFGBuilder took 428.35 ms. Allocated memory is still 356.5 MB. Free memory was 316.1 MB in the beginning and 290.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-24 21:21:00,163 INFO L168 Benchmark]: TraceAbstraction took 2850.33 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 290.0 MB in the beginning and 263.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 100.5 MB. Max. memory is 16.0 GB. [2021-03-24 21:21:00,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 466.18 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 234.2 MB in the beginning and 319.9 MB in the end (delta: -85.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.03 ms. Allocated memory is still 356.5 MB. Free memory was 319.9 MB in the beginning and 317.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.26 ms. Allocated memory is still 356.5 MB. Free memory was 317.8 MB in the beginning and 316.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 428.35 ms. Allocated memory is still 356.5 MB. Free memory was 316.1 MB in the beginning and 290.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2850.33 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 290.0 MB in the beginning and 263.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 100.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1394.3ms, 84 PlacesBefore, 50 PlacesAfterwards, 89 TransitionsBefore, 55 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 573, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 453, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 453, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 453, positive: 434, positive conditional: 0, positive unconditional: 434, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 573, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 453, unknown conditional: 0, unknown unconditional: 453] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2756.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 650.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1465.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 81 SDslu, 120 SDs, 0 SdLazy, 198 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 121.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 405.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 35, 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: 11.6ms SsaConstructionTime, 92.9ms SatisfiabilityAnalysisTime, 408.7ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 639 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...