/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 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 13:44:45,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 13:44:45,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 13:44:45,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 13:44:45,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 13:44:45,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 13:44:45,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 13:44:45,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 13:44:45,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 13:44:45,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 13:44:45,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 13:44:45,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 13:44:45,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 13:44:45,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 13:44:45,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 13:44:45,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 13:44:45,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 13:44:45,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 13:44:45,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 13:44:45,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 13:44:45,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 13:44:45,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 13:44:45,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 13:44:45,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 13:44:45,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 13:44:45,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 13:44:45,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 13:44:45,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 13:44:45,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 13:44:45,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 13:44:45,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 13:44:45,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 13:44:45,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 13:44:45,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 13:44:45,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 13:44:45,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 13:44:45,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 13:44:45,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 13:44:45,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 13:44:45,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 13:44:45,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 13:44:45,805 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 [2021-06-10 13:44:45,838 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 13:44:45,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 13:44:45,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 13:44:45,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 13:44:45,841 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 13:44:45,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 13:44:45,841 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 13:44:45,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 13:44:45,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 13:44:45,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 13:44:45,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 13:44:45,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 13:44:45,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 13:44:45,842 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 13:44:45,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 13:44:45,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 13:44:45,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 13:44:45,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 13:44:45,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 13:44:45,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 13:44:45,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 13:44:45,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 13:44:45,844 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 13:44:45,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 13:44:46,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 13:44:46,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 13:44:46,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 13:44:46,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 13:44:46,192 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 13:44:46,192 INFO L432 ainManager$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 [2021-06-10 13:44:46,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dad34475/d4b6f50ead2341b9b0d5e90e2fda8aff/FLAG730a25c12 [2021-06-10 13:44:46,691 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 13:44:46,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-06-10 13:44:46,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dad34475/d4b6f50ead2341b9b0d5e90e2fda8aff/FLAG730a25c12 [2021-06-10 13:44:47,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dad34475/d4b6f50ead2341b9b0d5e90e2fda8aff [2021-06-10 13:44:47,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 13:44:47,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 13:44:47,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 13:44:47,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 13:44:47,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 13:44:47,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3659400d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47, skipping insertion in model container [2021-06-10 13:44:47,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 13:44:47,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 13:44:47,365 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] [2021-06-10 13:44:47,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 13:44:47,399 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 13:44:47,438 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] [2021-06-10 13:44:47,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 13:44:47,501 INFO L208 MainTranslator]: Completed translation [2021-06-10 13:44:47,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47 WrapperNode [2021-06-10 13:44:47,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 13:44:47,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 13:44:47,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 13:44:47,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 13:44:47,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 13:44:47,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 13:44:47,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 13:44:47,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 13:44:47,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... [2021-06-10 13:44:47,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 13:44:47,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 13:44:47,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 13:44:47,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 13:44:47,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 13:44:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 13:44:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 13:44:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-10 13:44:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 13:44:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-06-10 13:44:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-06-10 13:44:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 13:44:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 13:44:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 13:44:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 13:44:47,653 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 13:44:47,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 13:44:47,974 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-06-10 13:44:47,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 01:44:47 BoogieIcfgContainer [2021-06-10 13:44:47,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 13:44:47,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 13:44:47,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 13:44:47,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 13:44:47,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 01:44:47" (1/3) ... [2021-06-10 13:44:47,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9b620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 01:44:47, skipping insertion in model container [2021-06-10 13:44:47,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 01:44:47" (2/3) ... [2021-06-10 13:44:47,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9b620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 01:44:47, skipping insertion in model container [2021-06-10 13:44:47,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 01:44:47" (3/3) ... [2021-06-10 13:44:47,983 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-06-10 13:44:47,991 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 13:44:47,994 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 13:44:47,994 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 13:44:48,036 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,036 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,036 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,036 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,036 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,037 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,037 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,037 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,037 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,037 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,038 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,038 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,039 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,039 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,039 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,039 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,039 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,039 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,040 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,040 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,040 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,040 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,040 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,041 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,041 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,041 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,041 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,043 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,043 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,044 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,044 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,044 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,044 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,045 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,045 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,047 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,047 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,049 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,050 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,050 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,055 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,055 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,057 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,058 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 13:44:48,067 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-10 13:44:48,082 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-10 13:44:48,113 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 13:44:48,113 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 13:44:48,113 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 13:44:48,113 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 13:44:48,113 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 13:44:48,113 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 13:44:48,113 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 13:44:48,113 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 13:44:48,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-06-10 13:44:48,201 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-06-10 13:44:48,201 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 13:44:48,213 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. [2021-06-10 13:44:48,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 99 transitions, 206 flow [2021-06-10 13:44:48,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 89 transitions, 181 flow [2021-06-10 13:44:48,249 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2021-06-10 13:44:48,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 13:44:48,251 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 13:44:48,254 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, 1, 1, 1, 1, 1, 1] [2021-06-10 13:44:48,254 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 13:44:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 13:44:48,260 INFO L82 PathProgramCache]: Analyzing trace with hash 602813051, now seen corresponding path program 1 times [2021-06-10 13:44:48,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 13:44:48,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574681026] [2021-06-10 13:44:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 13:44:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 13:44:48,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 13:44:48,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 13:44:48,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:48,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 13:44:48,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 13:44:48,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 13:44:48,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:48,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:48,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:48,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 13:44:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 13:44:48,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574681026] [2021-06-10 13:44:48,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 13:44:48,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 13:44:48,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897055481] [2021-06-10 13:44:48,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 13:44:48,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 13:44:48,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 13:44:48,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-10 13:44:48,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2021-06-10 13:44:48,668 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) [2021-06-10 13:44:48,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 13:44:48,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2021-06-10 13:44:48,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 13:44:49,056 INFO L129 PetriNetUnfolder]: 41/291 cut-off events. [2021-06-10 13:44:49,065 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 13:44:49,067 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. [2021-06-10 13:44:49,070 INFO L132 encePairwiseOnDemand]: 80/99 looper letters, 28 selfloop transitions, 4 changer transitions 37/110 dead transitions. [2021-06-10 13:44:49,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 110 transitions, 355 flow [2021-06-10 13:44:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 13:44:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 13:44:49,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 808 transitions. [2021-06-10 13:44:49,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5829725829725829 [2021-06-10 13:44:49,092 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 808 transitions. [2021-06-10 13:44:49,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 808 transitions. [2021-06-10 13:44:49,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 13:44:49,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 808 transitions. [2021-06-10 13:44:49,102 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) [2021-06-10 13:44:49,111 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) [2021-06-10 13:44:49,112 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) [2021-06-10 13:44:49,113 INFO L185 Difference]: Start difference. First operand has 84 places, 89 transitions, 181 flow. Second operand 14 states and 808 transitions. [2021-06-10 13:44:49,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 110 transitions, 355 flow [2021-06-10 13:44:49,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 110 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 13:44:49,120 INFO L241 Difference]: Finished difference. Result has 102 places, 73 transitions, 172 flow [2021-06-10 13:44:49,121 INFO L326 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} [2021-06-10 13:44:49,122 INFO L343 CegarLoopForPetriNet]: 84 programPoint places, 18 predicate places. [2021-06-10 13:44:49,122 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 172 flow [2021-06-10 13:44:49,123 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) [2021-06-10 13:44:49,123 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 13:44:49,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 13:44:49,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 13:44:49,123 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 13:44:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 13:44:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash -878337711, now seen corresponding path program 1 times [2021-06-10 13:44:49,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 13:44:49,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761612520] [2021-06-10 13:44:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 13:44:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 13:44:49,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 13:44:49,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 13:44:49,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:49,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 13:44:49,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 13:44:49,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 13:44:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 13:44:49,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761612520] [2021-06-10 13:44:49,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 13:44:49,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 13:44:49,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609248123] [2021-06-10 13:44:49,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 13:44:49,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 13:44:49,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 13:44:49,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 13:44:49,216 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 99 [2021-06-10 13:44:49,217 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) [2021-06-10 13:44:49,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 13:44:49,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 99 [2021-06-10 13:44:49,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 13:44:49,296 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-06-10 13:44:49,296 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 13:44:49,297 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. [2021-06-10 13:44:49,298 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 20 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2021-06-10 13:44:49,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 73 transitions, 222 flow [2021-06-10 13:44:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 13:44:49,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 13:44:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 327 transitions. [2021-06-10 13:44:49,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2021-06-10 13:44:49,300 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 327 transitions. [2021-06-10 13:44:49,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 327 transitions. [2021-06-10 13:44:49,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 13:44:49,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 327 transitions. [2021-06-10 13:44:49,302 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) [2021-06-10 13:44:49,303 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) [2021-06-10 13:44:49,303 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) [2021-06-10 13:44:49,303 INFO L185 Difference]: Start difference. First operand has 102 places, 73 transitions, 172 flow. Second operand 5 states and 327 transitions. [2021-06-10 13:44:49,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 73 transitions, 222 flow [2021-06-10 13:44:49,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 202 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-06-10 13:44:49,308 INFO L241 Difference]: Finished difference. Result has 81 places, 73 transitions, 162 flow [2021-06-10 13:44:49,308 INFO L326 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} [2021-06-10 13:44:49,308 INFO L343 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2021-06-10 13:44:49,308 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 162 flow [2021-06-10 13:44:49,309 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) [2021-06-10 13:44:49,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 13:44:49,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 13:44:49,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 13:44:49,312 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 13:44:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 13:44:49,313 INFO L82 PathProgramCache]: Analyzing trace with hash 978019582, now seen corresponding path program 1 times [2021-06-10 13:44:49,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 13:44:49,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416903535] [2021-06-10 13:44:49,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 13:44:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 13:44:49,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 13:44:49,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 13:44:49,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:49,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 13:44:49,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 13:44:49,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 13:44:49,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 13:44:49,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 13:44:49,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 13:44:49,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-06-10 13:44:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 13:44:49,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 13:44:49,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 13:44:49,545 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-06-10 13:44:49,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 13:44:49,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 13:44:49,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 13:44:49,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:49,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 13:44:49,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 13:44:49,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 13:44:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 13:44:49,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416903535] [2021-06-10 13:44:49,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 13:44:49,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-10 13:44:49,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101746648] [2021-06-10 13:44:49,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-10 13:44:49,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 13:44:49,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-10 13:44:49,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-06-10 13:44:49,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 99 [2021-06-10 13:44:49,621 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) [2021-06-10 13:44:49,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 13:44:49,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 99 [2021-06-10 13:44:49,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 13:44:50,260 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-06-10 13:44:50,260 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 13:44:50,260 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. [2021-06-10 13:44:50,261 INFO L132 encePairwiseOnDemand]: 79/99 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2021-06-10 13:44:50,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 71 transitions, 236 flow [2021-06-10 13:44:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 13:44:50,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 13:44:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 922 transitions. [2021-06-10 13:44:50,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4434824434824435 [2021-06-10 13:44:50,264 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 922 transitions. [2021-06-10 13:44:50,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 922 transitions. [2021-06-10 13:44:50,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 13:44:50,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 922 transitions. [2021-06-10 13:44:50,268 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) [2021-06-10 13:44:50,271 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) [2021-06-10 13:44:50,272 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) [2021-06-10 13:44:50,272 INFO L185 Difference]: Start difference. First operand has 81 places, 73 transitions, 162 flow. Second operand 21 states and 922 transitions. [2021-06-10 13:44:50,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 71 transitions, 236 flow [2021-06-10 13:44:50,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 71 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 13:44:50,277 INFO L241 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2021-06-10 13:44:50,278 INFO L326 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} [2021-06-10 13:44:50,278 INFO L343 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2021-06-10 13:44:50,278 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2021-06-10 13:44:50,278 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) [2021-06-10 13:44:50,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 13:44:50,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 01:44:50 BasicIcfg [2021-06-10 13:44:50,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 13:44:50,284 INFO L168 Benchmark]: Toolchain (without parser) took 3246.03 ms. Allocated memory was 335.5 MB in the beginning and 415.2 MB in the end (delta: 79.7 MB). Free memory was 298.0 MB in the beginning and 335.1 MB in the end (delta: -37.1 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.0 GB. [2021-06-10 13:44:50,284 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 335.5 MB. Free memory is still 316.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 13:44:50,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.95 ms. Allocated memory is still 335.5 MB. Free memory was 297.8 MB in the beginning and 298.7 MB in the end (delta: -866.0 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-10 13:44:50,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.07 ms. Allocated memory is still 335.5 MB. Free memory was 298.7 MB in the beginning and 296.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 13:44:50,285 INFO L168 Benchmark]: Boogie Preprocessor took 20.87 ms. Allocated memory is still 335.5 MB. Free memory was 296.7 MB in the beginning and 295.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 13:44:50,286 INFO L168 Benchmark]: RCFGBuilder took 405.14 ms. Allocated memory is still 335.5 MB. Free memory was 295.5 MB in the beginning and 268.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-10 13:44:50,286 INFO L168 Benchmark]: TraceAbstraction took 2306.06 ms. Allocated memory was 335.5 MB in the beginning and 415.2 MB in the end (delta: 79.7 MB). Free memory was 268.2 MB in the beginning and 335.1 MB in the end (delta: -66.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.0 GB. [2021-06-10 13:44:50,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 335.5 MB. Free memory is still 316.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 464.95 ms. Allocated memory is still 335.5 MB. Free memory was 297.8 MB in the beginning and 298.7 MB in the end (delta: -866.0 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.07 ms. Allocated memory is still 335.5 MB. Free memory was 298.7 MB in the beginning and 296.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.87 ms. Allocated memory is still 335.5 MB. Free memory was 296.7 MB in the beginning and 295.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 405.14 ms. Allocated memory is still 335.5 MB. Free memory was 295.5 MB in the beginning and 268.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2306.06 ms. Allocated memory was 335.5 MB in the beginning and 415.2 MB in the end (delta: 79.7 MB). Free memory was 268.2 MB in the beginning and 335.1 MB in the end (delta: -66.9 MB). Peak memory consumption was 14.8 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 33.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2171.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1222.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 103.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 179 SDslu, 334 SDs, 0 SdLazy, 337 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 223.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 886.4ms 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: 12.2ms SsaConstructionTime, 139.9ms SatisfiabilityAnalysisTime, 503.0ms 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...