/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:14:21,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:14:21,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:14:21,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:14:21,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:14:21,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:14:21,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:14:21,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:14:21,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:14:21,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:14:21,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:14:21,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:14:21,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:14:21,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:14:21,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:14:21,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:14:21,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:14:21,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:14:21,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:14:21,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:14:21,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:14:21,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:14:21,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:14:21,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:14:21,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:14:21,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:14:21,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:14:21,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:14:21,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:14:21,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:14:21,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:14:21,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:14:21,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:14:21,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:14:21,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:14:21,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:14:21,116 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-RepeatedVariableLbe.epf [2021-03-25 05:14:21,441 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:14:21,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:14:21,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:14:21,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:14:21,445 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:14:21,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:14:21,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:14:21,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:14:21,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:14:21,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:14:21,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:14:21,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:14:21,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:14:21,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:14:21,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:14:21,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:14:21,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:14:21,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:14:21,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:14:21,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:14:21,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:14:21,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:14:21,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:14:21,450 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:14:21,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:14:21,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:14:21,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:14:21,764 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:14:21,765 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:14:21,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2021-03-25 05:14:21,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e10d442/353ce1944306468989501bacd3955c3d/FLAGf9f98b85e [2021-03-25 05:14:22,337 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:14:22,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2021-03-25 05:14:22,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e10d442/353ce1944306468989501bacd3955c3d/FLAGf9f98b85e [2021-03-25 05:14:22,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e10d442/353ce1944306468989501bacd3955c3d [2021-03-25 05:14:22,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:14:22,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:14:22,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:14:22,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:14:22,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:14:22,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:14:22" (1/1) ... [2021-03-25 05:14:22,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660a7bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:22, skipping insertion in model container [2021-03-25 05:14:22,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:14:22" (1/1) ... [2021-03-25 05:14:22,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:14:22,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:14:23,156 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i[30003,30016] [2021-03-25 05:14:23,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:14:23,183 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:14:23,222 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i[30003,30016] [2021-03-25 05:14:23,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:14:23,295 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:14:23,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23 WrapperNode [2021-03-25 05:14:23,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:14:23,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:14:23,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:14:23,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:14:23,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:14:23,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:14:23,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:14:23,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:14:23,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... [2021-03-25 05:14:23,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:14:23,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:14:23,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:14:23,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:14:23,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:14:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:14:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:14:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-03-25 05:14:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-03-25 05:14:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:14:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:14:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:14:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:14:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:14:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:14:23,433 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:14:23,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:14:23,825 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-03-25 05:14:23,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:14:23 BoogieIcfgContainer [2021-03-25 05:14:23,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:14:23,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:14:23,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:14:23,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:14:23,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:14:22" (1/3) ... [2021-03-25 05:14:23,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e36ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:14:23, skipping insertion in model container [2021-03-25 05:14:23,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:23" (2/3) ... [2021-03-25 05:14:23,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e36ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:14:23, skipping insertion in model container [2021-03-25 05:14:23,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:14:23" (3/3) ... [2021-03-25 05:14:23,834 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2021-03-25 05:14:23,841 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:14:23,845 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 05:14:23,846 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:14:23,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,869 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,869 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,870 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,870 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,873 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,873 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,873 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,873 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,877 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,877 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,877 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,877 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,877 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,878 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,878 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,878 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:23,881 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:14:23,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 05:14:23,916 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:14:23,916 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:14:23,916 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:14:23,916 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:14:23,916 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:14:23,916 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:14:23,917 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:14:23,917 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:14:23,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions, 115 flow [2021-03-25 05:14:23,951 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2021-03-25 05:14:23,951 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:23,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 4/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2021-03-25 05:14:23,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 55 transitions, 115 flow [2021-03-25 05:14:23,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 55 transitions, 115 flow [2021-03-25 05:14:23,959 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:23,966 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions, 115 flow [2021-03-25 05:14:23,969 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 55 transitions, 115 flow [2021-03-25 05:14:23,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions, 115 flow [2021-03-25 05:14:23,983 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2021-03-25 05:14:23,983 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:23,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 4/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2021-03-25 05:14:23,986 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-25 05:14:24,956 INFO L154 LiptonReduction]: Checked pairs total: 195 [2021-03-25 05:14:24,956 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-25 05:14:24,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1000 [2021-03-25 05:14:24,966 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-25 05:14:24,966 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:24,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:24,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:24,967 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:14:24,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:24,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1975403421, now seen corresponding path program 1 times [2021-03-25 05:14:24,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:24,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496239752] [2021-03-25 05:14:24,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:25,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:25,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:25,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:25,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:25,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:25,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:25,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:25,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496239752] [2021-03-25 05:14:25,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:25,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:25,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88583689] [2021-03-25 05:14:25,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:25,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:25,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:25,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:25,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 93 [2021-03-25 05:14:25,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 47 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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) [2021-03-25 05:14:25,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:25,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 93 [2021-03-25 05:14:25,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:25,205 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 05:14:25,205 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 05:14:25,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:14:25,206 INFO L132 encePairwiseOnDemand]: 87/93 looper letters, 2 selfloop transitions, 5 changer transitions 3/20 dead transitions. [2021-03-25 05:14:25,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 59 flow [2021-03-25 05:14:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2021-03-25 05:14:25,219 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7347670250896058 [2021-03-25 05:14:25,219 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 410 transitions. [2021-03-25 05:14:25,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 410 transitions. [2021-03-25 05:14:25,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:25,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 410 transitions. [2021-03-25 05:14:25,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2021-03-25 05:14:25,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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) [2021-03-25 05:14:25,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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) [2021-03-25 05:14:25,233 INFO L185 Difference]: Start difference. First operand has 24 places, 21 transitions, 47 flow. Second operand 6 states and 410 transitions. [2021-03-25 05:14:25,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 59 flow [2021-03-25 05:14:25,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 59 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:25,236 INFO L241 Difference]: Finished difference. Result has 28 places, 17 transitions, 49 flow [2021-03-25 05:14:25,238 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=49, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2021-03-25 05:14:25,239 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2021-03-25 05:14:25,239 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:25,239 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 17 transitions, 49 flow [2021-03-25 05:14:25,239 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 17 transitions, 49 flow [2021-03-25 05:14:25,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 17 transitions, 49 flow [2021-03-25 05:14:25,243 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-25 05:14:25,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:25,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 05:14:25,243 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-25 05:14:25,923 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:26,139 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-25 05:14:26,211 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-25 05:14:26,212 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 05:14:26,212 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 973 [2021-03-25 05:14:26,213 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 10 transitions, 35 flow [2021-03-25 05:14:26,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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) [2021-03-25 05:14:26,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:26,213 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:26,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:14:26,214 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:14:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash -45927120, now seen corresponding path program 1 times [2021-03-25 05:14:26,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:26,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182611103] [2021-03-25 05:14:26,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:26,247 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:26,274 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:26,311 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:14:26,311 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:14:26,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:14:26,317 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 05:14:26,317 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-25 05:14:26,329 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,329 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,329 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,329 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,330 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,331 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,333 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,333 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,334 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,334 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,334 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,334 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,336 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,336 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,336 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,336 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,338 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,340 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,340 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,342 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,343 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,343 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,343 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:26,350 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:14:26,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 05:14:26,354 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:14:26,355 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:14:26,355 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:14:26,355 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:14:26,355 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:14:26,355 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:14:26,355 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:14:26,355 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:14:26,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 71 transitions, 154 flow [2021-03-25 05:14:26,377 INFO L129 PetriNetUnfolder]: 6/93 cut-off events. [2021-03-25 05:14:26,377 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 05:14:26,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 6/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 145 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2021-03-25 05:14:26,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 71 transitions, 154 flow [2021-03-25 05:14:26,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 71 transitions, 154 flow [2021-03-25 05:14:26,379 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:26,380 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 71 transitions, 154 flow [2021-03-25 05:14:26,380 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 71 transitions, 154 flow [2021-03-25 05:14:26,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 71 transitions, 154 flow [2021-03-25 05:14:26,390 INFO L129 PetriNetUnfolder]: 6/93 cut-off events. [2021-03-25 05:14:26,390 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 05:14:26,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 6/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 146 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2021-03-25 05:14:26,392 INFO L142 LiptonReduction]: Number of co-enabled transitions 1320 [2021-03-25 05:14:27,122 INFO L154 LiptonReduction]: Checked pairs total: 947 [2021-03-25 05:14:27,122 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-25 05:14:27,123 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 744 [2021-03-25 05:14:27,126 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 05:14:27,129 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:27,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:27,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:27,129 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:27,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:27,130 INFO L82 PathProgramCache]: Analyzing trace with hash 311131482, now seen corresponding path program 1 times [2021-03-25 05:14:27,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:27,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395443403] [2021-03-25 05:14:27,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:27,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:27,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:27,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:27,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:27,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:27,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395443403] [2021-03-25 05:14:27,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:27,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:27,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83328286] [2021-03-25 05:14:27,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:27,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:27,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:27,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:27,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 117 [2021-03-25 05:14:27,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 70 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2021-03-25 05:14:27,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:27,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 117 [2021-03-25 05:14:27,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:27,270 INFO L129 PetriNetUnfolder]: 12/70 cut-off events. [2021-03-25 05:14:27,271 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 05:14:27,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 70 events. 12/70 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 174 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 79. Up to 11 conditions per place. [2021-03-25 05:14:27,272 INFO L132 encePairwiseOnDemand]: 109/117 looper letters, 16 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2021-03-25 05:14:27,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 144 flow [2021-03-25 05:14:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 470 transitions. [2021-03-25 05:14:27,277 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-25 05:14:27,277 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 470 transitions. [2021-03-25 05:14:27,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 470 transitions. [2021-03-25 05:14:27,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:27,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 470 transitions. [2021-03-25 05:14:27,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:14:27,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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) [2021-03-25 05:14:27,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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) [2021-03-25 05:14:27,283 INFO L185 Difference]: Start difference. First operand has 34 places, 29 transitions, 70 flow. Second operand 6 states and 470 transitions. [2021-03-25 05:14:27,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 144 flow [2021-03-25 05:14:27,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 142 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:27,285 INFO L241 Difference]: Finished difference. Result has 44 places, 36 transitions, 130 flow [2021-03-25 05:14:27,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2021-03-25 05:14:27,285 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2021-03-25 05:14:27,285 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:27,285 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 36 transitions, 130 flow [2021-03-25 05:14:27,286 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 36 transitions, 130 flow [2021-03-25 05:14:27,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 36 transitions, 130 flow [2021-03-25 05:14:27,295 INFO L129 PetriNetUnfolder]: 3/54 cut-off events. [2021-03-25 05:14:27,295 INFO L130 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2021-03-25 05:14:27,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 54 events. 3/54 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2021-03-25 05:14:27,297 INFO L142 LiptonReduction]: Number of co-enabled transitions 382 [2021-03-25 05:14:27,910 INFO L154 LiptonReduction]: Checked pairs total: 191 [2021-03-25 05:14:27,910 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 05:14:27,910 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 625 [2021-03-25 05:14:27,911 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 116 flow [2021-03-25 05:14:27,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2021-03-25 05:14:27,911 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:27,911 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:27,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:14:27,912 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:27,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1374965555, now seen corresponding path program 1 times [2021-03-25 05:14:27,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:27,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229477476] [2021-03-25 05:14:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:27,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:27,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:27,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:27,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:27,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:27,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:28,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229477476] [2021-03-25 05:14:28,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:28,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:28,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672133011] [2021-03-25 05:14:28,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:28,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:28,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:28,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:28,004 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 128 [2021-03-25 05:14:28,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-03-25 05:14:28,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:28,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 128 [2021-03-25 05:14:28,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:28,066 INFO L129 PetriNetUnfolder]: 14/73 cut-off events. [2021-03-25 05:14:28,066 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-25 05:14:28,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 73 events. 14/73 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 1 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 120. Up to 11 conditions per place. [2021-03-25 05:14:28,067 INFO L132 encePairwiseOnDemand]: 119/128 looper letters, 16 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2021-03-25 05:14:28,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 210 flow [2021-03-25 05:14:28,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2021-03-25 05:14:28,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.64453125 [2021-03-25 05:14:28,069 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2021-03-25 05:14:28,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2021-03-25 05:14:28,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:28,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2021-03-25 05:14:28,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 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) [2021-03-25 05:14:28,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 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) [2021-03-25 05:14:28,073 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 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) [2021-03-25 05:14:28,073 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 116 flow. Second operand 6 states and 495 transitions. [2021-03-25 05:14:28,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 210 flow [2021-03-25 05:14:28,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:28,075 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 155 flow [2021-03-25 05:14:28,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=155, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-25 05:14:28,076 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2021-03-25 05:14:28,076 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:28,076 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 155 flow [2021-03-25 05:14:28,076 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 155 flow [2021-03-25 05:14:28,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 155 flow [2021-03-25 05:14:28,080 INFO L129 PetriNetUnfolder]: 4/47 cut-off events. [2021-03-25 05:14:28,081 INFO L130 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2021-03-25 05:14:28,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 47 events. 4/47 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 100 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 83. Up to 9 conditions per place. [2021-03-25 05:14:28,082 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-25 05:14:28,262 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:28,444 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-25 05:14:28,503 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 05:14:28,503 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:14:28,503 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 427 [2021-03-25 05:14:28,504 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 155 flow [2021-03-25 05:14:28,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-03-25 05:14:28,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:28,504 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:28,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:14:28,505 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:28,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1298036228, now seen corresponding path program 1 times [2021-03-25 05:14:28,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:28,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653636988] [2021-03-25 05:14:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:28,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:28,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:28,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:28,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653636988] [2021-03-25 05:14:28,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836408920] [2021-03-25 05:14:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:28,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 05:14:28,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 05:14:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:28,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:28,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:28,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:28,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:28,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:28,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:28,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:28,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:28,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:28,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:28,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:28,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:28,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:28,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:28,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:28,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:28,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:28,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:28,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:28,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:28,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:28,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 05:14:28,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-25 05:14:28,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979566942] [2021-03-25 05:14:28,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 05:14:28,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:28,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 05:14:28,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-25 05:14:28,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 130 [2021-03-25 05:14:28,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 155 flow. Second operand has 12 states, 12 states have (on average 87.16666666666667) internal successors, (1046), 12 states have internal predecessors, (1046), 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) [2021-03-25 05:14:28,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:28,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 130 [2021-03-25 05:14:28,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:28,959 INFO L129 PetriNetUnfolder]: 11/56 cut-off events. [2021-03-25 05:14:28,959 INFO L130 PetriNetUnfolder]: For 61/67 co-relation queries the response was YES. [2021-03-25 05:14:28,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 56 events. 11/56 cut-off events. For 61/67 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 144. Up to 12 conditions per place. [2021-03-25 05:14:28,960 INFO L132 encePairwiseOnDemand]: 121/130 looper letters, 8 selfloop transitions, 16 changer transitions 0/37 dead transitions. [2021-03-25 05:14:28,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 240 flow [2021-03-25 05:14:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 05:14:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 05:14:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 712 transitions. [2021-03-25 05:14:28,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6846153846153846 [2021-03-25 05:14:28,963 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 712 transitions. [2021-03-25 05:14:28,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 712 transitions. [2021-03-25 05:14:28,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:28,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 712 transitions. [2021-03-25 05:14:28,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 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) [2021-03-25 05:14:28,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 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) [2021-03-25 05:14:28,967 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 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) [2021-03-25 05:14:28,967 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 155 flow. Second operand 8 states and 712 transitions. [2021-03-25 05:14:28,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 240 flow [2021-03-25 05:14:28,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 37 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:14:28,970 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 205 flow [2021-03-25 05:14:28,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=205, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-25 05:14:28,970 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2021-03-25 05:14:28,970 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:28,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 205 flow [2021-03-25 05:14:28,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 205 flow [2021-03-25 05:14:28,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 205 flow [2021-03-25 05:14:28,975 INFO L129 PetriNetUnfolder]: 6/48 cut-off events. [2021-03-25 05:14:28,975 INFO L130 PetriNetUnfolder]: For 53/56 co-relation queries the response was YES. [2021-03-25 05:14:28,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 48 events. 6/48 cut-off events. For 53/56 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 114 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 107. Up to 9 conditions per place. [2021-03-25 05:14:28,976 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 05:14:28,979 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:14:28,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:28,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 05:14:28,979 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 205 flow [2021-03-25 05:14:28,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 87.16666666666667) internal successors, (1046), 12 states have internal predecessors, (1046), 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) [2021-03-25 05:14:28,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:28,980 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:29,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:29,203 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:29,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:29,203 INFO L82 PathProgramCache]: Analyzing trace with hash 340143734, now seen corresponding path program 1 times [2021-03-25 05:14:29,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:29,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342218794] [2021-03-25 05:14:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:29,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:29,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:29,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:29,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:29,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:29,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342218794] [2021-03-25 05:14:29,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:29,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:29,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501926330] [2021-03-25 05:14:29,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:14:29,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:29,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:14:29,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:14:29,310 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2021-03-25 05:14:29,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 205 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-25 05:14:29,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:29,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2021-03-25 05:14:29,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:29,388 INFO L129 PetriNetUnfolder]: 15/68 cut-off events. [2021-03-25 05:14:29,388 INFO L130 PetriNetUnfolder]: For 96/108 co-relation queries the response was YES. [2021-03-25 05:14:29,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 68 events. 15/68 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 193 event pairs, 0 based on Foata normal form. 9/69 useless extension candidates. Maximal degree in co-relation 212. Up to 13 conditions per place. [2021-03-25 05:14:29,389 INFO L132 encePairwiseOnDemand]: 119/130 looper letters, 19 selfloop transitions, 19 changer transitions 0/47 dead transitions. [2021-03-25 05:14:29,390 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 349 flow [2021-03-25 05:14:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 05:14:29,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 05:14:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 807 transitions. [2021-03-25 05:14:29,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6207692307692307 [2021-03-25 05:14:29,393 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 807 transitions. [2021-03-25 05:14:29,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 807 transitions. [2021-03-25 05:14:29,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:29,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 807 transitions. [2021-03-25 05:14:29,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 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) [2021-03-25 05:14:29,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-25 05:14:29,399 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-25 05:14:29,399 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 205 flow. Second operand 10 states and 807 transitions. [2021-03-25 05:14:29,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 349 flow [2021-03-25 05:14:29,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 47 transitions, 332 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 05:14:29,406 INFO L241 Difference]: Finished difference. Result has 56 places, 40 transitions, 284 flow [2021-03-25 05:14:29,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=284, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2021-03-25 05:14:29,406 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 22 predicate places. [2021-03-25 05:14:29,407 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:29,407 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 40 transitions, 284 flow [2021-03-25 05:14:29,407 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 40 transitions, 284 flow [2021-03-25 05:14:29,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 40 transitions, 284 flow [2021-03-25 05:14:29,415 INFO L129 PetriNetUnfolder]: 7/57 cut-off events. [2021-03-25 05:14:29,415 INFO L130 PetriNetUnfolder]: For 118/120 co-relation queries the response was YES. [2021-03-25 05:14:29,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 57 events. 7/57 cut-off events. For 118/120 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 158 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 158. Up to 11 conditions per place. [2021-03-25 05:14:29,417 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 05:14:29,419 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:14:29,420 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:29,420 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 05:14:29,426 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 284 flow [2021-03-25 05:14:29,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-25 05:14:29,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:29,427 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:29,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:14:29,427 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:29,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:29,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1809462368, now seen corresponding path program 2 times [2021-03-25 05:14:29,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:29,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96800786] [2021-03-25 05:14:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:29,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:29,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:29,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:29,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:29,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:29,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:29,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96800786] [2021-03-25 05:14:29,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:29,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:29,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105998617] [2021-03-25 05:14:29,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:14:29,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:29,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:14:29,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:14:29,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2021-03-25 05:14:29,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 284 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-25 05:14:29,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:29,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2021-03-25 05:14:29,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:29,597 INFO L129 PetriNetUnfolder]: 14/67 cut-off events. [2021-03-25 05:14:29,597 INFO L130 PetriNetUnfolder]: For 167/184 co-relation queries the response was YES. [2021-03-25 05:14:29,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 67 events. 14/67 cut-off events. For 167/184 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 192 event pairs, 3 based on Foata normal form. 13/72 useless extension candidates. Maximal degree in co-relation 232. Up to 14 conditions per place. [2021-03-25 05:14:29,598 INFO L132 encePairwiseOnDemand]: 119/130 looper letters, 15 selfloop transitions, 19 changer transitions 0/43 dead transitions. [2021-03-25 05:14:29,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 43 transitions, 362 flow [2021-03-25 05:14:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 05:14:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 05:14:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 801 transitions. [2021-03-25 05:14:29,601 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6161538461538462 [2021-03-25 05:14:29,601 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 801 transitions. [2021-03-25 05:14:29,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 801 transitions. [2021-03-25 05:14:29,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:29,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 801 transitions. [2021-03-25 05:14:29,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.1) internal successors, (801), 10 states have internal predecessors, (801), 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) [2021-03-25 05:14:29,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-25 05:14:29,606 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-25 05:14:29,606 INFO L185 Difference]: Start difference. First operand has 56 places, 40 transitions, 284 flow. Second operand 10 states and 801 transitions. [2021-03-25 05:14:29,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 43 transitions, 362 flow [2021-03-25 05:14:29,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 43 transitions, 315 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 05:14:29,610 INFO L241 Difference]: Finished difference. Result has 57 places, 39 transitions, 267 flow [2021-03-25 05:14:29,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=267, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2021-03-25 05:14:29,610 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 23 predicate places. [2021-03-25 05:14:29,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:29,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 39 transitions, 267 flow [2021-03-25 05:14:29,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 39 transitions, 267 flow [2021-03-25 05:14:29,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 39 transitions, 267 flow [2021-03-25 05:14:29,618 INFO L129 PetriNetUnfolder]: 6/56 cut-off events. [2021-03-25 05:14:29,619 INFO L130 PetriNetUnfolder]: For 64/66 co-relation queries the response was YES. [2021-03-25 05:14:29,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 56 events. 6/56 cut-off events. For 64/66 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 158 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 156. Up to 11 conditions per place. [2021-03-25 05:14:29,620 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-25 05:14:29,662 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 05:14:29,662 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:14:29,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 05:14:29,663 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 263 flow [2021-03-25 05:14:29,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-25 05:14:29,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:29,664 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-03-25 05:14:29,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:14:29,664 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:29,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1046527514, now seen corresponding path program 1 times [2021-03-25 05:14:29,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:29,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566021578] [2021-03-25 05:14:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:29,689 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:29,708 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:29,717 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:14:29,717 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:14:29,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:14:29,718 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 05:14:29,719 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-25 05:14:29,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,730 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,730 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,733 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,734 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,736 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,736 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,737 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,738 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,739 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,739 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,739 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,742 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,742 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,742 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,742 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,743 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,744 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,745 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:29,747 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:14:29,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 05:14:29,748 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:14:29,748 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:14:29,748 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:14:29,749 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:14:29,749 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:14:29,749 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:14:29,749 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:14:29,757 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:14:29,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 195 flow [2021-03-25 05:14:29,773 INFO L129 PetriNetUnfolder]: 8/122 cut-off events. [2021-03-25 05:14:29,774 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 05:14:29,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 122 events. 8/122 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2021-03-25 05:14:29,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 87 transitions, 195 flow [2021-03-25 05:14:29,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 87 transitions, 195 flow [2021-03-25 05:14:29,775 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:29,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 87 transitions, 195 flow [2021-03-25 05:14:29,776 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 87 transitions, 195 flow [2021-03-25 05:14:29,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 195 flow [2021-03-25 05:14:29,789 INFO L129 PetriNetUnfolder]: 8/122 cut-off events. [2021-03-25 05:14:29,789 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 05:14:29,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 122 events. 8/122 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 233 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2021-03-25 05:14:29,792 INFO L142 LiptonReduction]: Number of co-enabled transitions 2700 [2021-03-25 05:14:30,747 INFO L154 LiptonReduction]: Checked pairs total: 2438 [2021-03-25 05:14:30,748 INFO L156 LiptonReduction]: Total number of compositions: 63 [2021-03-25 05:14:30,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 973 [2021-03-25 05:14:30,750 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-25 05:14:30,750 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:30,750 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:30,750 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:30,750 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:30,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:30,750 INFO L82 PathProgramCache]: Analyzing trace with hash -118506731, now seen corresponding path program 1 times [2021-03-25 05:14:30,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:30,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289501710] [2021-03-25 05:14:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:30,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:30,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:30,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:30,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:30,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:30,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289501710] [2021-03-25 05:14:30,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:30,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:30,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920106984] [2021-03-25 05:14:30,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:30,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:30,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:30,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:30,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 150 [2021-03-25 05:14:30,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 101 flow. Second operand has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2021-03-25 05:14:30,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:30,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 150 [2021-03-25 05:14:30,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:30,928 INFO L129 PetriNetUnfolder]: 190/440 cut-off events. [2021-03-25 05:14:30,928 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 05:14:30,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 440 events. 190/440 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2327 event pairs, 20 based on Foata normal form. 81/403 useless extension candidates. Maximal degree in co-relation 757. Up to 110 conditions per place. [2021-03-25 05:14:30,932 INFO L132 encePairwiseOnDemand]: 138/150 looper letters, 37 selfloop transitions, 11 changer transitions 0/69 dead transitions. [2021-03-25 05:14:30,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 69 transitions, 255 flow [2021-03-25 05:14:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:30,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 634 transitions. [2021-03-25 05:14:30,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7044444444444444 [2021-03-25 05:14:30,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 634 transitions. [2021-03-25 05:14:30,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 634 transitions. [2021-03-25 05:14:30,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:30,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 634 transitions. [2021-03-25 05:14:30,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.66666666666667) internal successors, (634), 6 states have internal predecessors, (634), 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) [2021-03-25 05:14:30,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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) [2021-03-25 05:14:30,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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) [2021-03-25 05:14:30,939 INFO L185 Difference]: Start difference. First operand has 45 places, 40 transitions, 101 flow. Second operand 6 states and 634 transitions. [2021-03-25 05:14:30,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 69 transitions, 255 flow [2021-03-25 05:14:30,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 249 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:30,941 INFO L241 Difference]: Finished difference. Result has 53 places, 47 transitions, 174 flow [2021-03-25 05:14:30,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2021-03-25 05:14:30,941 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2021-03-25 05:14:30,941 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:30,941 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 47 transitions, 174 flow [2021-03-25 05:14:30,941 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 47 transitions, 174 flow [2021-03-25 05:14:30,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 47 transitions, 174 flow [2021-03-25 05:14:30,951 INFO L129 PetriNetUnfolder]: 22/143 cut-off events. [2021-03-25 05:14:30,952 INFO L130 PetriNetUnfolder]: For 46/59 co-relation queries the response was YES. [2021-03-25 05:14:30,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 143 events. 22/143 cut-off events. For 46/59 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 568 event pairs, 6 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 256. Up to 48 conditions per place. [2021-03-25 05:14:30,954 INFO L142 LiptonReduction]: Number of co-enabled transitions 908 [2021-03-25 05:14:31,547 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:31,715 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-25 05:14:31,770 INFO L154 LiptonReduction]: Checked pairs total: 721 [2021-03-25 05:14:31,770 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 05:14:31,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 829 [2021-03-25 05:14:31,770 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 154 flow [2021-03-25 05:14:31,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2021-03-25 05:14:31,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:31,771 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:31,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:14:31,771 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:31,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:31,772 INFO L82 PathProgramCache]: Analyzing trace with hash -883129095, now seen corresponding path program 1 times [2021-03-25 05:14:31,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:31,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762557973] [2021-03-25 05:14:31,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:31,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:31,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:31,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:31,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:31,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:31,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762557973] [2021-03-25 05:14:31,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:31,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:31,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175257570] [2021-03-25 05:14:31,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:31,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:31,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:31,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:31,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 162 [2021-03-25 05:14:31,809 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2021-03-25 05:14:31,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:31,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 162 [2021-03-25 05:14:31,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:31,910 INFO L129 PetriNetUnfolder]: 148/377 cut-off events. [2021-03-25 05:14:31,911 INFO L130 PetriNetUnfolder]: For 252/478 co-relation queries the response was YES. [2021-03-25 05:14:31,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 377 events. 148/377 cut-off events. For 252/478 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1933 event pairs, 58 based on Foata normal form. 4/291 useless extension candidates. Maximal degree in co-relation 847. Up to 132 conditions per place. [2021-03-25 05:14:31,914 INFO L132 encePairwiseOnDemand]: 151/162 looper letters, 36 selfloop transitions, 13 changer transitions 0/61 dead transitions. [2021-03-25 05:14:31,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 357 flow [2021-03-25 05:14:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 644 transitions. [2021-03-25 05:14:31,917 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6625514403292181 [2021-03-25 05:14:31,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 644 transitions. [2021-03-25 05:14:31,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 644 transitions. [2021-03-25 05:14:31,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:31,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 644 transitions. [2021-03-25 05:14:31,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.33333333333333) internal successors, (644), 6 states have internal predecessors, (644), 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) [2021-03-25 05:14:31,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2021-03-25 05:14:31,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2021-03-25 05:14:31,921 INFO L185 Difference]: Start difference. First operand has 43 places, 37 transitions, 154 flow. Second operand 6 states and 644 transitions. [2021-03-25 05:14:31,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 357 flow [2021-03-25 05:14:31,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:14:31,923 INFO L241 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2021-03-25 05:14:31,923 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2021-03-25 05:14:31,923 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places. [2021-03-25 05:14:31,924 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:31,924 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 41 transitions, 218 flow [2021-03-25 05:14:31,924 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 41 transitions, 218 flow [2021-03-25 05:14:31,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 41 transitions, 218 flow [2021-03-25 05:14:31,949 INFO L129 PetriNetUnfolder]: 32/173 cut-off events. [2021-03-25 05:14:31,950 INFO L130 PetriNetUnfolder]: For 110/128 co-relation queries the response was YES. [2021-03-25 05:14:31,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 173 events. 32/173 cut-off events. For 110/128 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 897 event pairs, 14 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 420. Up to 71 conditions per place. [2021-03-25 05:14:31,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 680 [2021-03-25 05:14:31,957 INFO L154 LiptonReduction]: Checked pairs total: 158 [2021-03-25 05:14:31,957 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:31,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 05:14:31,957 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2021-03-25 05:14:31,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2021-03-25 05:14:31,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:31,958 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:31,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:14:31,958 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:31,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:31,958 INFO L82 PathProgramCache]: Analyzing trace with hash 312090490, now seen corresponding path program 1 times [2021-03-25 05:14:31,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:31,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113352520] [2021-03-25 05:14:31,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:31,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:31,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:31,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:31,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:31,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:31,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113352520] [2021-03-25 05:14:31,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228175690] [2021-03-25 05:14:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:32,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 05:14:32,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 05:14:32,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:32,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 05:14:32,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-25 05:14:32,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826776480] [2021-03-25 05:14:32,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 05:14:32,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:32,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 05:14:32,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-25 05:14:32,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 162 [2021-03-25 05:14:32,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 10 states, 10 states have (on average 104.2) internal successors, (1042), 10 states have internal predecessors, (1042), 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) [2021-03-25 05:14:32,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:32,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 162 [2021-03-25 05:14:32,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:32,343 INFO L129 PetriNetUnfolder]: 113/309 cut-off events. [2021-03-25 05:14:32,343 INFO L130 PetriNetUnfolder]: For 336/503 co-relation queries the response was YES. [2021-03-25 05:14:32,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 309 events. 113/309 cut-off events. For 336/503 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1489 event pairs, 16 based on Foata normal form. 22/282 useless extension candidates. Maximal degree in co-relation 985. Up to 96 conditions per place. [2021-03-25 05:14:32,346 INFO L132 encePairwiseOnDemand]: 151/162 looper letters, 28 selfloop transitions, 34 changer transitions 0/75 dead transitions. [2021-03-25 05:14:32,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 75 transitions, 495 flow [2021-03-25 05:14:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 05:14:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 05:14:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 990 transitions. [2021-03-25 05:14:32,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2021-03-25 05:14:32,349 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 990 transitions. [2021-03-25 05:14:32,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 990 transitions. [2021-03-25 05:14:32,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:32,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 990 transitions. [2021-03-25 05:14:32,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-03-25 05:14:32,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 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) [2021-03-25 05:14:32,354 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 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) [2021-03-25 05:14:32,354 INFO L185 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 9 states and 990 transitions. [2021-03-25 05:14:32,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 75 transitions, 495 flow [2021-03-25 05:14:32,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 75 transitions, 485 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:14:32,359 INFO L241 Difference]: Finished difference. Result has 58 places, 63 transitions, 441 flow [2021-03-25 05:14:32,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=441, PETRI_PLACES=58, PETRI_TRANSITIONS=63} [2021-03-25 05:14:32,360 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2021-03-25 05:14:32,360 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:32,360 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 63 transitions, 441 flow [2021-03-25 05:14:32,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 63 transitions, 441 flow [2021-03-25 05:14:32,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 63 transitions, 441 flow [2021-03-25 05:14:32,378 INFO L129 PetriNetUnfolder]: 55/219 cut-off events. [2021-03-25 05:14:32,378 INFO L130 PetriNetUnfolder]: For 487/569 co-relation queries the response was YES. [2021-03-25 05:14:32,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 219 events. 55/219 cut-off events. For 487/569 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1233 event pairs, 6 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 724. Up to 86 conditions per place. [2021-03-25 05:14:32,381 INFO L142 LiptonReduction]: Number of co-enabled transitions 968 [2021-03-25 05:14:32,389 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-25 05:14:32,389 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:32,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-25 05:14:32,389 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 63 transitions, 441 flow [2021-03-25 05:14:32,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 104.2) internal successors, (1042), 10 states have internal predecessors, (1042), 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) [2021-03-25 05:14:32,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:32,390 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:32,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:32,604 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:32,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1827745363, now seen corresponding path program 1 times [2021-03-25 05:14:32,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:32,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833929337] [2021-03-25 05:14:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:32,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:32,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:32,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833929337] [2021-03-25 05:14:32,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533594515] [2021-03-25 05:14:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:32,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 05:14:32,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 05:14:32,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:32,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:32,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 05:14:32,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 05:14:32,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:14:32,811 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-25 05:14:32,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,819 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 05:14:32,822 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:14:32,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:14:32,827 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 05:14:32,828 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:32,829 INFO L142 QuantifierPusher]: treesize reduction 12, result has 40.0 percent of original size [2021-03-25 05:14:32,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:32,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:32,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:32,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:32,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-25 05:14:32,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 10 [2021-03-25 05:14:32,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388009224] [2021-03-25 05:14:32,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:14:32,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:32,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:14:32,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-25 05:14:32,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 162 [2021-03-25 05:14:32,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 63 transitions, 441 flow. Second operand has 7 states, 7 states have (on average 100.14285714285714) internal successors, (701), 7 states have internal predecessors, (701), 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) [2021-03-25 05:14:32,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:32,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 162 [2021-03-25 05:14:32,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:33,013 INFO L129 PetriNetUnfolder]: 140/390 cut-off events. [2021-03-25 05:14:33,013 INFO L130 PetriNetUnfolder]: For 1007/1862 co-relation queries the response was YES. [2021-03-25 05:14:33,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1627 conditions, 390 events. 140/390 cut-off events. For 1007/1862 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2206 event pairs, 24 based on Foata normal form. 59/396 useless extension candidates. Maximal degree in co-relation 1590. Up to 125 conditions per place. [2021-03-25 05:14:33,017 INFO L132 encePairwiseOnDemand]: 151/162 looper letters, 67 selfloop transitions, 31 changer transitions 0/109 dead transitions. [2021-03-25 05:14:33,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 109 transitions, 946 flow [2021-03-25 05:14:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 05:14:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 05:14:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1065 transitions. [2021-03-25 05:14:33,020 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2021-03-25 05:14:33,021 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1065 transitions. [2021-03-25 05:14:33,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1065 transitions. [2021-03-25 05:14:33,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:33,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1065 transitions. [2021-03-25 05:14:33,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 106.5) internal successors, (1065), 10 states have internal predecessors, (1065), 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) [2021-03-25 05:14:33,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 162.0) internal successors, (1782), 11 states have internal predecessors, (1782), 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) [2021-03-25 05:14:33,026 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 162.0) internal successors, (1782), 11 states have internal predecessors, (1782), 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) [2021-03-25 05:14:33,026 INFO L185 Difference]: Start difference. First operand has 58 places, 63 transitions, 441 flow. Second operand 10 states and 1065 transitions. [2021-03-25 05:14:33,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 109 transitions, 946 flow [2021-03-25 05:14:33,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 109 transitions, 871 flow, removed 30 selfloop flow, removed 3 redundant places. [2021-03-25 05:14:33,032 INFO L241 Difference]: Finished difference. Result has 67 places, 74 transitions, 576 flow [2021-03-25 05:14:33,032 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=576, PETRI_PLACES=67, PETRI_TRANSITIONS=74} [2021-03-25 05:14:33,033 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 22 predicate places. [2021-03-25 05:14:33,033 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:33,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 74 transitions, 576 flow [2021-03-25 05:14:33,033 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 74 transitions, 576 flow [2021-03-25 05:14:33,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 74 transitions, 576 flow [2021-03-25 05:14:33,058 INFO L129 PetriNetUnfolder]: 69/276 cut-off events. [2021-03-25 05:14:33,058 INFO L130 PetriNetUnfolder]: For 1199/1293 co-relation queries the response was YES. [2021-03-25 05:14:33,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 276 events. 69/276 cut-off events. For 1199/1293 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1678 event pairs, 0 based on Foata normal form. 3/229 useless extension candidates. Maximal degree in co-relation 1056. Up to 106 conditions per place. [2021-03-25 05:14:33,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 1174 [2021-03-25 05:14:33,112 INFO L154 LiptonReduction]: Checked pairs total: 75 [2021-03-25 05:14:33,113 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:14:33,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 05:14:33,113 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 73 transitions, 568 flow [2021-03-25 05:14:33,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 100.14285714285714) internal successors, (701), 7 states have internal predecessors, (701), 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) [2021-03-25 05:14:33,113 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:33,114 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:33,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-25 05:14:33,337 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:33,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:33,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2144141685, now seen corresponding path program 2 times [2021-03-25 05:14:33,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:33,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41106012] [2021-03-25 05:14:33,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:33,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:33,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:33,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:33,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:33,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:33,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:33,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:33,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:33,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:33,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:33,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41106012] [2021-03-25 05:14:33,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:33,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:33,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681362888] [2021-03-25 05:14:33,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:14:33,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:33,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:14:33,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:14:33,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 163 [2021-03-25 05:14:33,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 73 transitions, 568 flow. Second operand has 7 states, 7 states have (on average 100.14285714285714) internal successors, (701), 7 states have internal predecessors, (701), 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) [2021-03-25 05:14:33,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:33,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 163 [2021-03-25 05:14:33,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:33,600 INFO L129 PetriNetUnfolder]: 137/437 cut-off events. [2021-03-25 05:14:33,600 INFO L130 PetriNetUnfolder]: For 1859/2513 co-relation queries the response was YES. [2021-03-25 05:14:33,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2031 conditions, 437 events. 137/437 cut-off events. For 1859/2513 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2767 event pairs, 10 based on Foata normal form. 65/453 useless extension candidates. Maximal degree in co-relation 1992. Up to 147 conditions per place. [2021-03-25 05:14:33,604 INFO L132 encePairwiseOnDemand]: 150/163 looper letters, 48 selfloop transitions, 63 changer transitions 0/122 dead transitions. [2021-03-25 05:14:33,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 122 transitions, 1120 flow [2021-03-25 05:14:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 05:14:33,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 05:14:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1067 transitions. [2021-03-25 05:14:33,607 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.654601226993865 [2021-03-25 05:14:33,607 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1067 transitions. [2021-03-25 05:14:33,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1067 transitions. [2021-03-25 05:14:33,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:33,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1067 transitions. [2021-03-25 05:14:33,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 106.7) internal successors, (1067), 10 states have internal predecessors, (1067), 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) [2021-03-25 05:14:33,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 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) [2021-03-25 05:14:33,612 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 163.0) internal successors, (1793), 11 states have internal predecessors, (1793), 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) [2021-03-25 05:14:33,612 INFO L185 Difference]: Start difference. First operand has 67 places, 73 transitions, 568 flow. Second operand 10 states and 1067 transitions. [2021-03-25 05:14:33,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 122 transitions, 1120 flow [2021-03-25 05:14:33,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 122 transitions, 1026 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-03-25 05:14:33,622 INFO L241 Difference]: Finished difference. Result has 76 places, 103 transitions, 964 flow [2021-03-25 05:14:33,622 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=964, PETRI_PLACES=76, PETRI_TRANSITIONS=103} [2021-03-25 05:14:33,622 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 31 predicate places. [2021-03-25 05:14:33,622 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:33,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 103 transitions, 964 flow [2021-03-25 05:14:33,622 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 103 transitions, 964 flow [2021-03-25 05:14:33,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 103 transitions, 964 flow [2021-03-25 05:14:33,661 INFO L129 PetriNetUnfolder]: 83/356 cut-off events. [2021-03-25 05:14:33,661 INFO L130 PetriNetUnfolder]: For 1972/2219 co-relation queries the response was YES. [2021-03-25 05:14:33,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 356 events. 83/356 cut-off events. For 1972/2219 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2511 event pairs, 2 based on Foata normal form. 3/311 useless extension candidates. Maximal degree in co-relation 1691. Up to 102 conditions per place. [2021-03-25 05:14:33,667 INFO L142 LiptonReduction]: Number of co-enabled transitions 1612 [2021-03-25 05:14:33,815 INFO L154 LiptonReduction]: Checked pairs total: 280 [2021-03-25 05:14:33,815 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 05:14:33,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 193 [2021-03-25 05:14:33,815 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 101 transitions, 968 flow [2021-03-25 05:14:33,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 100.14285714285714) internal successors, (701), 7 states have internal predecessors, (701), 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) [2021-03-25 05:14:33,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:33,816 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-03-25 05:14:33,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 05:14:33,816 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:33,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:33,817 INFO L82 PathProgramCache]: Analyzing trace with hash -774167856, now seen corresponding path program 1 times [2021-03-25 05:14:33,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:33,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568317203] [2021-03-25 05:14:33,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:33,832 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:33,843 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:33,847 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:14:33,847 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:14:33,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 05:14:33,848 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 05:14:33,849 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,858 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,859 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,859 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,859 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,859 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,859 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,859 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,860 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,861 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,861 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,861 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,861 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,861 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,861 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,862 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,863 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,864 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,865 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,868 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,869 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,870 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,871 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,872 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,872 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,872 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,872 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,872 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,873 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,873 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,874 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,874 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,874 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,874 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,875 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,876 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:33,877 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:14:33,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 05:14:33,880 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:14:33,880 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:14:33,880 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:14:33,880 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:14:33,880 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:14:33,880 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:14:33,880 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:14:33,880 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:14:33,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 103 transitions, 238 flow [2021-03-25 05:14:33,892 INFO L129 PetriNetUnfolder]: 10/151 cut-off events. [2021-03-25 05:14:33,892 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 05:14:33,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 151 events. 10/151 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 313 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2021-03-25 05:14:33,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 103 transitions, 238 flow [2021-03-25 05:14:33,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 103 transitions, 238 flow [2021-03-25 05:14:33,894 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:33,894 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 103 transitions, 238 flow [2021-03-25 05:14:33,894 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 103 transitions, 238 flow [2021-03-25 05:14:33,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 103 transitions, 238 flow [2021-03-25 05:14:33,905 INFO L129 PetriNetUnfolder]: 10/151 cut-off events. [2021-03-25 05:14:33,905 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 05:14:33,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 151 events. 10/151 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 306 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2021-03-25 05:14:33,909 INFO L142 LiptonReduction]: Number of co-enabled transitions 4560 [2021-03-25 05:14:34,741 INFO L154 LiptonReduction]: Checked pairs total: 3681 [2021-03-25 05:14:34,741 INFO L156 LiptonReduction]: Total number of compositions: 77 [2021-03-25 05:14:34,742 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 848 [2021-03-25 05:14:34,744 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-03-25 05:14:34,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:34,744 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:34,744 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:34,744 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:34,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:34,745 INFO L82 PathProgramCache]: Analyzing trace with hash -92809099, now seen corresponding path program 1 times [2021-03-25 05:14:34,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:34,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756203844] [2021-03-25 05:14:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:34,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:34,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:34,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:34,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:34,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756203844] [2021-03-25 05:14:34,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:34,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:14:34,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644051901] [2021-03-25 05:14:34,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-25 05:14:34,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:34,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-25 05:14:34,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-25 05:14:34,758 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 180 [2021-03-25 05:14:34,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 130 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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) [2021-03-25 05:14:34,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:34,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 180 [2021-03-25 05:14:34,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:34,766 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-03-25 05:14:34,766 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 05:14:34,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 72 events. 0/72 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 3/65 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 05:14:34,767 INFO L132 encePairwiseOnDemand]: 177/180 looper letters, 0 selfloop transitions, 0 changer transitions 1/44 dead transitions. [2021-03-25 05:14:34,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 120 flow [2021-03-25 05:14:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-25 05:14:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-25 05:14:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2021-03-25 05:14:34,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2021-03-25 05:14:34,768 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2021-03-25 05:14:34,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2021-03-25 05:14:34,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:34,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2021-03-25 05:14:34,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2021-03-25 05:14:34,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2021-03-25 05:14:34,770 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2021-03-25 05:14:34,770 INFO L185 Difference]: Start difference. First operand has 55 places, 49 transitions, 130 flow. Second operand 2 states and 307 transitions. [2021-03-25 05:14:34,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 120 flow [2021-03-25 05:14:34,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 44 transitions, 108 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:34,772 INFO L241 Difference]: Finished difference. Result has 54 places, 43 transitions, 106 flow [2021-03-25 05:14:34,773 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2021-03-25 05:14:34,773 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2021-03-25 05:14:34,773 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:34,773 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 43 transitions, 106 flow [2021-03-25 05:14:34,773 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 43 transitions, 106 flow [2021-03-25 05:14:34,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 43 transitions, 106 flow [2021-03-25 05:14:34,778 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-03-25 05:14:34,778 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 05:14:34,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 71 events. 0/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 05:14:34,779 INFO L142 LiptonReduction]: Number of co-enabled transitions 824 [2021-03-25 05:14:35,351 INFO L154 LiptonReduction]: Checked pairs total: 1790 [2021-03-25 05:14:35,351 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-25 05:14:35,352 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 579 [2021-03-25 05:14:35,352 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 82 flow [2021-03-25 05:14:35,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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) [2021-03-25 05:14:35,352 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:35,352 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:35,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 05:14:35,352 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 492158634, now seen corresponding path program 1 times [2021-03-25 05:14:35,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:35,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040304246] [2021-03-25 05:14:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:35,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:35,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:35,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:35,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:35,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:35,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:35,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:35,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:35,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:35,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:35,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040304246] [2021-03-25 05:14:35,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:35,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:35,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748675228] [2021-03-25 05:14:35,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:35,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:35,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:35,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:35,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2021-03-25 05:14:35,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-03-25 05:14:35,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:35,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2021-03-25 05:14:35,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:35,588 INFO L129 PetriNetUnfolder]: 1006/1616 cut-off events. [2021-03-25 05:14:35,589 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 05:14:35,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1616 events. 1006/1616 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8117 event pairs, 382 based on Foata normal form. 0/1231 useless extension candidates. Maximal degree in co-relation 3185. Up to 839 conditions per place. [2021-03-25 05:14:35,605 INFO L132 encePairwiseOnDemand]: 179/193 looper letters, 44 selfloop transitions, 13 changer transitions 0/69 dead transitions. [2021-03-25 05:14:35,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 272 flow [2021-03-25 05:14:35,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2021-03-25 05:14:35,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6303972366148531 [2021-03-25 05:14:35,608 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 730 transitions. [2021-03-25 05:14:35,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 730 transitions. [2021-03-25 05:14:35,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:35,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 730 transitions. [2021-03-25 05:14:35,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 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) [2021-03-25 05:14:35,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2021-03-25 05:14:35,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2021-03-25 05:14:35,612 INFO L185 Difference]: Start difference. First operand has 40 places, 31 transitions, 82 flow. Second operand 6 states and 730 transitions. [2021-03-25 05:14:35,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 69 transitions, 272 flow [2021-03-25 05:14:35,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:35,614 INFO L241 Difference]: Finished difference. Result has 48 places, 43 transitions, 188 flow [2021-03-25 05:14:35,614 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2021-03-25 05:14:35,615 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2021-03-25 05:14:35,615 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:35,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 43 transitions, 188 flow [2021-03-25 05:14:35,615 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 43 transitions, 188 flow [2021-03-25 05:14:35,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 43 transitions, 188 flow [2021-03-25 05:14:35,654 INFO L129 PetriNetUnfolder]: 244/536 cut-off events. [2021-03-25 05:14:35,655 INFO L130 PetriNetUnfolder]: For 188/231 co-relation queries the response was YES. [2021-03-25 05:14:35,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 536 events. 244/536 cut-off events. For 188/231 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 2912 event pairs, 150 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 1350. Up to 380 conditions per place. [2021-03-25 05:14:35,664 INFO L142 LiptonReduction]: Number of co-enabled transitions 722 [2021-03-25 05:14:35,937 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:36,154 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:36,234 INFO L154 LiptonReduction]: Checked pairs total: 672 [2021-03-25 05:14:36,234 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:14:36,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 620 [2021-03-25 05:14:36,235 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 184 flow [2021-03-25 05:14:36,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-03-25 05:14:36,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:36,236 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:36,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 05:14:36,236 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:36,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:36,236 INFO L82 PathProgramCache]: Analyzing trace with hash 671383239, now seen corresponding path program 1 times [2021-03-25 05:14:36,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:36,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378219781] [2021-03-25 05:14:36,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:36,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:36,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:36,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:36,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:36,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:36,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378219781] [2021-03-25 05:14:36,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:36,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:36,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745539129] [2021-03-25 05:14:36,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:14:36,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:36,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:14:36,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:14:36,317 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 195 [2021-03-25 05:14:36,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 184 flow. Second operand has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2021-03-25 05:14:36,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:36,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 195 [2021-03-25 05:14:36,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:36,585 INFO L129 PetriNetUnfolder]: 1110/1797 cut-off events. [2021-03-25 05:14:36,585 INFO L130 PetriNetUnfolder]: For 1331/6883 co-relation queries the response was YES. [2021-03-25 05:14:36,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5592 conditions, 1797 events. 1110/1797 cut-off events. For 1331/6883 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9428 event pairs, 367 based on Foata normal form. 120/1751 useless extension candidates. Maximal degree in co-relation 5562. Up to 1108 conditions per place. [2021-03-25 05:14:36,605 INFO L132 encePairwiseOnDemand]: 181/195 looper letters, 35 selfloop transitions, 25 changer transitions 0/72 dead transitions. [2021-03-25 05:14:36,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 422 flow [2021-03-25 05:14:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2021-03-25 05:14:36,607 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6367521367521367 [2021-03-25 05:14:36,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2021-03-25 05:14:36,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2021-03-25 05:14:36,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:36,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2021-03-25 05:14:36,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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) [2021-03-25 05:14:36,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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) [2021-03-25 05:14:36,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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) [2021-03-25 05:14:36,613 INFO L185 Difference]: Start difference. First operand has 46 places, 41 transitions, 184 flow. Second operand 6 states and 745 transitions. [2021-03-25 05:14:36,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 422 flow [2021-03-25 05:14:36,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 72 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:14:36,617 INFO L241 Difference]: Finished difference. Result has 53 places, 54 transitions, 347 flow [2021-03-25 05:14:36,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2021-03-25 05:14:36,617 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2021-03-25 05:14:36,617 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:36,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 54 transitions, 347 flow [2021-03-25 05:14:36,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 54 transitions, 347 flow [2021-03-25 05:14:36,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 54 transitions, 347 flow [2021-03-25 05:14:36,683 INFO L129 PetriNetUnfolder]: 369/760 cut-off events. [2021-03-25 05:14:36,683 INFO L130 PetriNetUnfolder]: For 1126/2576 co-relation queries the response was YES. [2021-03-25 05:14:36,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2695 conditions, 760 events. 369/760 cut-off events. For 1126/2576 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4564 event pairs, 105 based on Foata normal form. 12/674 useless extension candidates. Maximal degree in co-relation 2663. Up to 503 conditions per place. [2021-03-25 05:14:36,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 1020 [2021-03-25 05:14:36,734 INFO L154 LiptonReduction]: Checked pairs total: 247 [2021-03-25 05:14:36,734 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:36,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 05:14:36,735 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 347 flow [2021-03-25 05:14:36,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2021-03-25 05:14:36,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:36,735 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:36,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 05:14:36,735 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:36,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1785428356, now seen corresponding path program 1 times [2021-03-25 05:14:36,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:36,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272396715] [2021-03-25 05:14:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:36,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:36,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:36,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:36,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:36,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272396715] [2021-03-25 05:14:36,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:36,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:14:36,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870237925] [2021-03-25 05:14:36,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:36,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:36,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:36,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:36,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 195 [2021-03-25 05:14:36,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:14:36,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:36,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 195 [2021-03-25 05:14:36,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:37,143 INFO L129 PetriNetUnfolder]: 1278/2226 cut-off events. [2021-03-25 05:14:37,143 INFO L130 PetriNetUnfolder]: For 5309/18344 co-relation queries the response was YES. [2021-03-25 05:14:37,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8893 conditions, 2226 events. 1278/2226 cut-off events. For 5309/18344 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 13332 event pairs, 225 based on Foata normal form. 196/2307 useless extension candidates. Maximal degree in co-relation 8859. Up to 843 conditions per place. [2021-03-25 05:14:37,173 INFO L132 encePairwiseOnDemand]: 181/195 looper letters, 43 selfloop transitions, 39 changer transitions 0/94 dead transitions. [2021-03-25 05:14:37,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 94 transitions, 751 flow [2021-03-25 05:14:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 749 transitions. [2021-03-25 05:14:37,175 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6401709401709401 [2021-03-25 05:14:37,176 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 749 transitions. [2021-03-25 05:14:37,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 749 transitions. [2021-03-25 05:14:37,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:37,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 749 transitions. [2021-03-25 05:14:37,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 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) [2021-03-25 05:14:37,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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) [2021-03-25 05:14:37,180 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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) [2021-03-25 05:14:37,180 INFO L185 Difference]: Start difference. First operand has 53 places, 54 transitions, 347 flow. Second operand 6 states and 749 transitions. [2021-03-25 05:14:37,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 94 transitions, 751 flow [2021-03-25 05:14:37,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 94 transitions, 722 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-03-25 05:14:37,190 INFO L241 Difference]: Finished difference. Result has 59 places, 73 transitions, 610 flow [2021-03-25 05:14:37,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=610, PETRI_PLACES=59, PETRI_TRANSITIONS=73} [2021-03-25 05:14:37,191 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2021-03-25 05:14:37,191 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:37,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 73 transitions, 610 flow [2021-03-25 05:14:37,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 73 transitions, 610 flow [2021-03-25 05:14:37,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 73 transitions, 610 flow [2021-03-25 05:14:37,341 INFO L129 PetriNetUnfolder]: 638/1306 cut-off events. [2021-03-25 05:14:37,341 INFO L130 PetriNetUnfolder]: For 4519/7830 co-relation queries the response was YES. [2021-03-25 05:14:37,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5902 conditions, 1306 events. 638/1306 cut-off events. For 4519/7830 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 8851 event pairs, 106 based on Foata normal form. 22/1233 useless extension candidates. Maximal degree in co-relation 5867. Up to 660 conditions per place. [2021-03-25 05:14:37,367 INFO L142 LiptonReduction]: Number of co-enabled transitions 1346 [2021-03-25 05:14:37,704 INFO L154 LiptonReduction]: Checked pairs total: 337 [2021-03-25 05:14:37,704 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:37,704 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 513 [2021-03-25 05:14:37,705 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 73 transitions, 610 flow [2021-03-25 05:14:37,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:14:37,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:37,706 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:37,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 05:14:37,706 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:37,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:37,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1484819266, now seen corresponding path program 1 times [2021-03-25 05:14:37,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:37,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304629793] [2021-03-25 05:14:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:37,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:37,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:37,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:37,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:37,760 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:37,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304629793] [2021-03-25 05:14:37,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069665837] [2021-03-25 05:14:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:37,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 05:14:37,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 05:14:37,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:37,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:37,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:37,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:37,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:37,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 05:14:37,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2021-03-25 05:14:37,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700983413] [2021-03-25 05:14:37,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 05:14:37,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:37,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 05:14:37,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-03-25 05:14:37,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 195 [2021-03-25 05:14:37,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 73 transitions, 610 flow. Second operand has 13 states, 13 states have (on average 115.38461538461539) internal successors, (1500), 13 states have internal predecessors, (1500), 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) [2021-03-25 05:14:37,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:37,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 195 [2021-03-25 05:14:37,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:38,528 INFO L129 PetriNetUnfolder]: 1294/2252 cut-off events. [2021-03-25 05:14:38,528 INFO L130 PetriNetUnfolder]: For 8643/23849 co-relation queries the response was YES. [2021-03-25 05:14:38,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10933 conditions, 2252 events. 1294/2252 cut-off events. For 8643/23849 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 13346 event pairs, 39 based on Foata normal form. 262/2406 useless extension candidates. Maximal degree in co-relation 10896. Up to 894 conditions per place. [2021-03-25 05:14:38,559 INFO L132 encePairwiseOnDemand]: 181/195 looper letters, 63 selfloop transitions, 137 changer transitions 0/212 dead transitions. [2021-03-25 05:14:38,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 212 transitions, 2178 flow [2021-03-25 05:14:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 05:14:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 05:14:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1737 transitions. [2021-03-25 05:14:38,565 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6362637362637362 [2021-03-25 05:14:38,565 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1737 transitions. [2021-03-25 05:14:38,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1737 transitions. [2021-03-25 05:14:38,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:38,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1737 transitions. [2021-03-25 05:14:38,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.07142857142857) internal successors, (1737), 14 states have internal predecessors, (1737), 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) [2021-03-25 05:14:38,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 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) [2021-03-25 05:14:38,586 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 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) [2021-03-25 05:14:38,586 INFO L185 Difference]: Start difference. First operand has 59 places, 73 transitions, 610 flow. Second operand 14 states and 1737 transitions. [2021-03-25 05:14:38,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 212 transitions, 2178 flow [2021-03-25 05:14:38,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 212 transitions, 2039 flow, removed 56 selfloop flow, removed 2 redundant places. [2021-03-25 05:14:38,602 INFO L241 Difference]: Finished difference. Result has 75 places, 174 transitions, 1965 flow [2021-03-25 05:14:38,602 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1965, PETRI_PLACES=75, PETRI_TRANSITIONS=174} [2021-03-25 05:14:38,603 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 20 predicate places. [2021-03-25 05:14:38,603 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:38,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 174 transitions, 1965 flow [2021-03-25 05:14:38,603 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 174 transitions, 1965 flow [2021-03-25 05:14:38,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 174 transitions, 1965 flow [2021-03-25 05:14:38,729 INFO L129 PetriNetUnfolder]: 599/1245 cut-off events. [2021-03-25 05:14:38,729 INFO L130 PetriNetUnfolder]: For 7625/15631 co-relation queries the response was YES. [2021-03-25 05:14:38,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6600 conditions, 1245 events. 599/1245 cut-off events. For 7625/15631 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8277 event pairs, 22 based on Foata normal form. 21/1166 useless extension candidates. Maximal degree in co-relation 6559. Up to 572 conditions per place. [2021-03-25 05:14:38,755 INFO L142 LiptonReduction]: Number of co-enabled transitions 3152 [2021-03-25 05:14:38,967 INFO L154 LiptonReduction]: Checked pairs total: 1968 [2021-03-25 05:14:38,968 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:38,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 365 [2021-03-25 05:14:38,968 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 174 transitions, 1965 flow [2021-03-25 05:14:38,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 115.38461538461539) internal successors, (1500), 13 states have internal predecessors, (1500), 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) [2021-03-25 05:14:38,969 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:38,969 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:39,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:39,191 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 05:14:39,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:39,191 INFO L82 PathProgramCache]: Analyzing trace with hash -535588650, now seen corresponding path program 1 times [2021-03-25 05:14:39,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:39,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233260329] [2021-03-25 05:14:39,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:39,210 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:14:39,216 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:14:39,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:14:39,221 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:14:39,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 05:14:39,221 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 05:14:39,222 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,242 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,245 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,245 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,245 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,245 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,245 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,245 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,246 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,246 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,246 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,246 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,246 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,246 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,247 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,247 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,247 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,247 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,249 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:14:39,250 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:14:39,250 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 05:14:39,252 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:14:39,252 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:14:39,252 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:14:39,252 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:14:39,252 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:14:39,252 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:14:39,252 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:14:39,252 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:14:39,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 119 transitions, 283 flow [2021-03-25 05:14:39,267 INFO L129 PetriNetUnfolder]: 12/180 cut-off events. [2021-03-25 05:14:39,267 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 05:14:39,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 180 events. 12/180 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 393 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2021-03-25 05:14:39,268 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 119 transitions, 283 flow [2021-03-25 05:14:39,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 119 transitions, 283 flow [2021-03-25 05:14:39,269 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:39,269 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 119 transitions, 283 flow [2021-03-25 05:14:39,269 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 119 transitions, 283 flow [2021-03-25 05:14:39,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 119 transitions, 283 flow [2021-03-25 05:14:39,284 INFO L129 PetriNetUnfolder]: 12/180 cut-off events. [2021-03-25 05:14:39,284 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 05:14:39,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 180 events. 12/180 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 384 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2021-03-25 05:14:39,288 INFO L142 LiptonReduction]: Number of co-enabled transitions 6900 [2021-03-25 05:14:40,428 INFO L154 LiptonReduction]: Checked pairs total: 7292 [2021-03-25 05:14:40,428 INFO L156 LiptonReduction]: Total number of compositions: 98 [2021-03-25 05:14:40,428 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1159 [2021-03-25 05:14:40,430 INFO L129 PetriNetUnfolder]: 2/24 cut-off events. [2021-03-25 05:14:40,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:14:40,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:40,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:40,430 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:14:40,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:40,431 INFO L82 PathProgramCache]: Analyzing trace with hash 252798133, now seen corresponding path program 1 times [2021-03-25 05:14:40,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:40,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277379189] [2021-03-25 05:14:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:40,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:40,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:40,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:40,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:40,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:40,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:40,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:40,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:40,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277379189] [2021-03-25 05:14:40,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:40,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:40,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301639135] [2021-03-25 05:14:40,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:40,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:40,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:40,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:40,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 217 [2021-03-25 05:14:40,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 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) [2021-03-25 05:14:40,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:40,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 217 [2021-03-25 05:14:40,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:42,091 INFO L129 PetriNetUnfolder]: 12542/17913 cut-off events. [2021-03-25 05:14:42,091 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-03-25 05:14:42,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35090 conditions, 17913 events. 12542/17913 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 114257 event pairs, 1672 based on Foata normal form. 1483/14746 useless extension candidates. Maximal degree in co-relation 35004. Up to 8214 conditions per place. [2021-03-25 05:14:42,335 INFO L132 encePairwiseOnDemand]: 200/217 looper letters, 65 selfloop transitions, 17 changer transitions 1/108 dead transitions. [2021-03-25 05:14:42,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 108 transitions, 425 flow [2021-03-25 05:14:42,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:42,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 848 transitions. [2021-03-25 05:14:42,337 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6513056835637481 [2021-03-25 05:14:42,337 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 848 transitions. [2021-03-25 05:14:42,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 848 transitions. [2021-03-25 05:14:42,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:42,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 848 transitions. [2021-03-25 05:14:42,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2021-03-25 05:14:42,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 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) [2021-03-25 05:14:42,340 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 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) [2021-03-25 05:14:42,340 INFO L185 Difference]: Start difference. First operand has 62 places, 54 transitions, 153 flow. Second operand 6 states and 848 transitions. [2021-03-25 05:14:42,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 108 transitions, 425 flow [2021-03-25 05:14:42,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 108 transitions, 405 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-25 05:14:42,342 INFO L241 Difference]: Finished difference. Result has 70 places, 65 transitions, 254 flow [2021-03-25 05:14:42,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2021-03-25 05:14:42,343 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2021-03-25 05:14:42,343 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:42,343 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 65 transitions, 254 flow [2021-03-25 05:14:42,343 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 65 transitions, 254 flow [2021-03-25 05:14:42,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 254 flow [2021-03-25 05:14:42,423 INFO L129 PetriNetUnfolder]: 495/1115 cut-off events. [2021-03-25 05:14:42,423 INFO L130 PetriNetUnfolder]: For 457/628 co-relation queries the response was YES. [2021-03-25 05:14:42,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2685 conditions, 1115 events. 495/1115 cut-off events. For 457/628 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7274 event pairs, 229 based on Foata normal form. 0/928 useless extension candidates. Maximal degree in co-relation 2646. Up to 698 conditions per place. [2021-03-25 05:14:42,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 1770 [2021-03-25 05:14:43,083 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-03-25 05:14:43,271 INFO L154 LiptonReduction]: Checked pairs total: 1492 [2021-03-25 05:14:43,271 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 05:14:43,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 929 [2021-03-25 05:14:43,272 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 234 flow [2021-03-25 05:14:43,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 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) [2021-03-25 05:14:43,272 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:43,272 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:43,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 05:14:43,272 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:14:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:43,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1115740658, now seen corresponding path program 1 times [2021-03-25 05:14:43,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:43,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65253252] [2021-03-25 05:14:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:43,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:43,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:14:43,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:43,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:43,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:43,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:43,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:43,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:43,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:14:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:43,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65253252] [2021-03-25 05:14:43,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:43,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:14:43,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15674352] [2021-03-25 05:14:43,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:43,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:43,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:43,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:43,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 228 [2021-03-25 05:14:43,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-03-25 05:14:43,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:43,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 228 [2021-03-25 05:14:43,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:44,999 INFO L129 PetriNetUnfolder]: 13250/19371 cut-off events. [2021-03-25 05:14:44,999 INFO L130 PetriNetUnfolder]: For 13042/22831 co-relation queries the response was YES. [2021-03-25 05:14:45,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54866 conditions, 19371 events. 13250/19371 cut-off events. For 13042/22831 co-relation queries the response was YES. Maximal size of possible extension queue 1257. Compared 129947 event pairs, 4916 based on Foata normal form. 14/14199 useless extension candidates. Maximal degree in co-relation 47729. Up to 11108 conditions per place. [2021-03-25 05:14:45,212 INFO L132 encePairwiseOnDemand]: 211/228 looper letters, 62 selfloop transitions, 23 changer transitions 0/100 dead transitions. [2021-03-25 05:14:45,212 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 100 transitions, 585 flow [2021-03-25 05:14:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:45,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2021-03-25 05:14:45,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-25 05:14:45,214 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 855 transitions. [2021-03-25 05:14:45,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 855 transitions. [2021-03-25 05:14:45,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:45,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 855 transitions. [2021-03-25 05:14:45,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.5) internal successors, (855), 6 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) [2021-03-25 05:14:45,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 228.0) internal successors, (1596), 7 states have internal predecessors, (1596), 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) [2021-03-25 05:14:45,218 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 228.0) internal successors, (1596), 7 states have internal predecessors, (1596), 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) [2021-03-25 05:14:45,218 INFO L185 Difference]: Start difference. First operand has 59 places, 55 transitions, 234 flow. Second operand 6 states and 855 transitions. [2021-03-25 05:14:45,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 100 transitions, 585 flow [2021-03-25 05:14:45,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 100 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:14:45,235 INFO L241 Difference]: Finished difference. Result has 65 places, 63 transitions, 356 flow [2021-03-25 05:14:45,235 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2021-03-25 05:14:45,236 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2021-03-25 05:14:45,236 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:45,236 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 63 transitions, 356 flow [2021-03-25 05:14:45,236 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 63 transitions, 356 flow [2021-03-25 05:14:45,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 63 transitions, 356 flow [2021-03-25 05:14:45,491 INFO L129 PetriNetUnfolder]: 1310/2893 cut-off events. [2021-03-25 05:14:45,492 INFO L130 PetriNetUnfolder]: For 1385/1796 co-relation queries the response was YES. [2021-03-25 05:14:45,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7868 conditions, 2893 events. 1310/2893 cut-off events. For 1385/1796 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 25072 event pairs, 897 based on Foata normal form. 4/2210 useless extension candidates. Maximal degree in co-relation 7833. Up to 1381 conditions per place. [2021-03-25 05:14:45,557 INFO L142 LiptonReduction]: Number of co-enabled transitions 1478 [2021-03-25 05:14:46,341 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:46,490 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:14:46,710 INFO L154 LiptonReduction]: Checked pairs total: 1587 [2021-03-25 05:14:46,710 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 05:14:46,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1474 [2021-03-25 05:14:46,710 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 352 flow [2021-03-25 05:14:46,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2021-03-25 05:14:46,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:46,711 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:46,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 05:14:46,711 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:14:46,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:46,711 INFO L82 PathProgramCache]: Analyzing trace with hash 233080815, now seen corresponding path program 1 times [2021-03-25 05:14:46,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:46,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314847627] [2021-03-25 05:14:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:46,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:46,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:46,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314847627] [2021-03-25 05:14:46,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434793234] [2021-03-25 05:14:46,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:14:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:46,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 05:14:46,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 05:14:46,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:46,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:46,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:46,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:46,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:46,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:46,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:46,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:46,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:46,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:46,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:46,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:46,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:46,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:46,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:46,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:46,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:46,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:46,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:46,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:14:46,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:14:46,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:14:46,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:46,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:14:46,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-25 05:14:46,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 10 [2021-03-25 05:14:46,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108561192] [2021-03-25 05:14:46,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:14:46,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:46,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:14:46,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-25 05:14:46,938 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 231 [2021-03-25 05:14:46,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 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) [2021-03-25 05:14:46,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:46,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 231 [2021-03-25 05:14:46,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:48,821 INFO L129 PetriNetUnfolder]: 13477/19510 cut-off events. [2021-03-25 05:14:48,821 INFO L130 PetriNetUnfolder]: For 19893/50830 co-relation queries the response was YES. [2021-03-25 05:14:48,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63575 conditions, 19510 events. 13477/19510 cut-off events. For 19893/50830 co-relation queries the response was YES. Maximal size of possible extension queue 1191. Compared 128585 event pairs, 5709 based on Foata normal form. 720/17561 useless extension candidates. Maximal degree in co-relation 63540. Up to 15264 conditions per place. [2021-03-25 05:14:49,003 INFO L132 encePairwiseOnDemand]: 214/231 looper letters, 49 selfloop transitions, 37 changer transitions 0/101 dead transitions. [2021-03-25 05:14:49,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 101 transitions, 697 flow [2021-03-25 05:14:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:14:49,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:14:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1005 transitions. [2021-03-25 05:14:49,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.62152133580705 [2021-03-25 05:14:49,005 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1005 transitions. [2021-03-25 05:14:49,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1005 transitions. [2021-03-25 05:14:49,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:49,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1005 transitions. [2021-03-25 05:14:49,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.57142857142858) internal successors, (1005), 7 states have internal predecessors, (1005), 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) [2021-03-25 05:14:49,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 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) [2021-03-25 05:14:49,009 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 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) [2021-03-25 05:14:49,009 INFO L185 Difference]: Start difference. First operand has 63 places, 61 transitions, 352 flow. Second operand 7 states and 1005 transitions. [2021-03-25 05:14:49,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 101 transitions, 697 flow [2021-03-25 05:14:49,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 101 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:14:49,028 INFO L241 Difference]: Finished difference. Result has 69 places, 76 transitions, 559 flow [2021-03-25 05:14:49,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=559, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2021-03-25 05:14:49,028 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2021-03-25 05:14:49,028 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:49,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 76 transitions, 559 flow [2021-03-25 05:14:49,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 76 transitions, 559 flow [2021-03-25 05:14:49,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 76 transitions, 559 flow [2021-03-25 05:14:49,471 INFO L129 PetriNetUnfolder]: 3065/5558 cut-off events. [2021-03-25 05:14:49,471 INFO L130 PetriNetUnfolder]: For 8750/13556 co-relation queries the response was YES. [2021-03-25 05:14:49,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20111 conditions, 5558 events. 3065/5558 cut-off events. For 8750/13556 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 43298 event pairs, 1182 based on Foata normal form. 26/4406 useless extension candidates. Maximal degree in co-relation 20076. Up to 4345 conditions per place. [2021-03-25 05:14:49,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 1860 [2021-03-25 05:14:50,205 INFO L154 LiptonReduction]: Checked pairs total: 827 [2021-03-25 05:14:50,206 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:14:50,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1178 [2021-03-25 05:14:50,206 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 559 flow [2021-03-25 05:14:50,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 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) [2021-03-25 05:14:50,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:14:50,206 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:14:50,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-03-25 05:14:50,428 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:14:50,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:14:50,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1212148207, now seen corresponding path program 1 times [2021-03-25 05:14:50,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:14:50,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603792498] [2021-03-25 05:14:50,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:14:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:14:50,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:50,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:50,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:50,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:14:50,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:50,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:14:50,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:14:50,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:14:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:14:50,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603792498] [2021-03-25 05:14:50,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:14:50,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:14:50,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144508435] [2021-03-25 05:14:50,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:14:50,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:14:50,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:14:50,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:14:50,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 231 [2021-03-25 05:14:50,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 559 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2021-03-25 05:14:50,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:14:50,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 231 [2021-03-25 05:14:50,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:14:53,377 INFO L129 PetriNetUnfolder]: 19947/30883 cut-off events. [2021-03-25 05:14:53,378 INFO L130 PetriNetUnfolder]: For 69508/248814 co-relation queries the response was YES. [2021-03-25 05:14:53,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122817 conditions, 30883 events. 19947/30883 cut-off events. For 69508/248814 co-relation queries the response was YES. Maximal size of possible extension queue 2153. Compared 243908 event pairs, 4721 based on Foata normal form. 1898/30045 useless extension candidates. Maximal degree in co-relation 122780. Up to 13418 conditions per place. [2021-03-25 05:14:53,749 INFO L132 encePairwiseOnDemand]: 214/231 looper letters, 59 selfloop transitions, 52 changer transitions 0/126 dead transitions. [2021-03-25 05:14:53,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 126 transitions, 1070 flow [2021-03-25 05:14:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:14:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:14:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 878 transitions. [2021-03-25 05:14:53,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6334776334776335 [2021-03-25 05:14:53,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 878 transitions. [2021-03-25 05:14:53,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 878 transitions. [2021-03-25 05:14:53,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:14:53,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 878 transitions. [2021-03-25 05:14:53,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.33333333333334) internal successors, (878), 6 states have internal predecessors, (878), 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) [2021-03-25 05:14:53,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 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) [2021-03-25 05:14:53,755 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 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) [2021-03-25 05:14:53,755 INFO L185 Difference]: Start difference. First operand has 69 places, 76 transitions, 559 flow. Second operand 6 states and 878 transitions. [2021-03-25 05:14:53,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 126 transitions, 1070 flow [2021-03-25 05:14:53,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 126 transitions, 1053 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 05:14:53,797 INFO L241 Difference]: Finished difference. Result has 74 places, 96 transitions, 886 flow [2021-03-25 05:14:53,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=74, PETRI_TRANSITIONS=96} [2021-03-25 05:14:53,797 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2021-03-25 05:14:53,797 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:14:53,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 96 transitions, 886 flow [2021-03-25 05:14:53,798 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 96 transitions, 886 flow [2021-03-25 05:14:53,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 96 transitions, 886 flow [2021-03-25 05:14:54,982 INFO L129 PetriNetUnfolder]: 7096/13022 cut-off events. [2021-03-25 05:14:54,982 INFO L130 PetriNetUnfolder]: For 46677/109467 co-relation queries the response was YES. [2021-03-25 05:14:55,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60995 conditions, 13022 events. 7096/13022 cut-off events. For 46677/109467 co-relation queries the response was YES. Maximal size of possible extension queue 1326. Compared 119492 event pairs, 2063 based on Foata normal form. 52/11218 useless extension candidates. Maximal degree in co-relation 60958. Up to 7960 conditions per place. [2021-03-25 05:14:55,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 2278 [2021-03-25 05:16:21,161 INFO L154 LiptonReduction]: Checked pairs total: 2162 [2021-03-25 05:16:21,161 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:16:21,162 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87365 [2021-03-25 05:16:21,162 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 96 transitions, 886 flow [2021-03-25 05:16:21,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2021-03-25 05:16:21,162 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:16:21,162 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:16:21,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 05:16:21,162 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:16:21,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:16:21,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1086168160, now seen corresponding path program 1 times [2021-03-25 05:16:21,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:16:21,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264059176] [2021-03-25 05:16:21,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:16:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:16:21,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:16:21,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:16:21,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:16:21,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:16:21,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:16:21,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:16:21,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:16:21,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:16:21,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:16:21,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:16:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:16:21,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264059176] [2021-03-25 05:16:21,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:16:21,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:16:21,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920485637] [2021-03-25 05:16:21,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:16:21,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:16:21,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:16:21,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:16:21,200 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 233 [2021-03-25 05:16:21,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 96 transitions, 886 flow. Second operand has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 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) [2021-03-25 05:16:21,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:16:21,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 233 [2021-03-25 05:16:21,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:16:25,533 INFO L129 PetriNetUnfolder]: 25184/39823 cut-off events. [2021-03-25 05:16:25,533 INFO L130 PetriNetUnfolder]: For 163053/488384 co-relation queries the response was YES. [2021-03-25 05:16:25,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196255 conditions, 39823 events. 25184/39823 cut-off events. For 163053/488384 co-relation queries the response was YES. Maximal size of possible extension queue 3089. Compared 338275 event pairs, 8211 based on Foata normal form. 1037/38091 useless extension candidates. Maximal degree in co-relation 196215. Up to 17613 conditions per place. [2021-03-25 05:16:26,132 INFO L132 encePairwiseOnDemand]: 217/233 looper letters, 117 selfloop transitions, 60 changer transitions 0/190 dead transitions. [2021-03-25 05:16:26,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 190 transitions, 1953 flow [2021-03-25 05:16:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 05:16:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 05:16:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1409 transitions. [2021-03-25 05:16:26,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6047210300429184 [2021-03-25 05:16:26,139 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1409 transitions. [2021-03-25 05:16:26,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1409 transitions. [2021-03-25 05:16:26,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:16:26,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1409 transitions. [2021-03-25 05:16:26,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.9) internal successors, (1409), 10 states have internal predecessors, (1409), 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) [2021-03-25 05:16:26,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 233.0) internal successors, (2563), 11 states have internal predecessors, (2563), 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) [2021-03-25 05:16:26,147 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 233.0) internal successors, (2563), 11 states have internal predecessors, (2563), 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) [2021-03-25 05:16:26,147 INFO L185 Difference]: Start difference. First operand has 74 places, 96 transitions, 886 flow. Second operand 10 states and 1409 transitions. [2021-03-25 05:16:26,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 190 transitions, 1953 flow [2021-03-25 05:16:26,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 190 transitions, 1813 flow, removed 54 selfloop flow, removed 2 redundant places. [2021-03-25 05:16:26,320 INFO L241 Difference]: Finished difference. Result has 84 places, 112 transitions, 1115 flow [2021-03-25 05:16:26,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1115, PETRI_PLACES=84, PETRI_TRANSITIONS=112} [2021-03-25 05:16:26,320 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2021-03-25 05:16:26,320 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:16:26,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 112 transitions, 1115 flow [2021-03-25 05:16:26,321 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 112 transitions, 1115 flow [2021-03-25 05:16:26,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 112 transitions, 1115 flow [2021-03-25 05:16:27,816 INFO L129 PetriNetUnfolder]: 8918/16990 cut-off events. [2021-03-25 05:16:27,816 INFO L130 PetriNetUnfolder]: For 59803/80292 co-relation queries the response was YES. [2021-03-25 05:16:27,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78507 conditions, 16990 events. 8918/16990 cut-off events. For 59803/80292 co-relation queries the response was YES. Maximal size of possible extension queue 2010. Compared 169561 event pairs, 2597 based on Foata normal form. 55/14962 useless extension candidates. Maximal degree in co-relation 78466. Up to 10581 conditions per place. [2021-03-25 05:16:28,078 INFO L142 LiptonReduction]: Number of co-enabled transitions 2686 [2021-03-25 05:18:37,568 INFO L154 LiptonReduction]: Checked pairs total: 2388 [2021-03-25 05:18:37,568 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:18:37,568 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131248 [2021-03-25 05:18:37,569 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 111 transitions, 1107 flow [2021-03-25 05:18:37,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 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) [2021-03-25 05:18:37,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:18:37,569 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:18:37,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 05:18:37,569 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:18:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:18:37,569 INFO L82 PathProgramCache]: Analyzing trace with hash -928122100, now seen corresponding path program 2 times [2021-03-25 05:18:37,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:18:37,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023031404] [2021-03-25 05:18:37,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:18:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:18:37,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:18:37,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:18:37,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:18:37,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:18:37,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:18:37,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:18:37,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:18:37,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:18:37,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:18:37,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:18:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 05:18:37,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023031404] [2021-03-25 05:18:37,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:18:37,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:18:37,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25295898] [2021-03-25 05:18:37,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:18:37,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:18:37,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:18:37,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:18:37,603 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 233 [2021-03-25 05:18:37,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 111 transitions, 1107 flow. Second operand has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 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) [2021-03-25 05:18:37,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:18:37,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 233 [2021-03-25 05:18:37,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:18:42,191 INFO L129 PetriNetUnfolder]: 27376/44217 cut-off events. [2021-03-25 05:18:42,191 INFO L130 PetriNetUnfolder]: For 176617/399534 co-relation queries the response was YES. [2021-03-25 05:18:42,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219708 conditions, 44217 events. 27376/44217 cut-off events. For 176617/399534 co-relation queries the response was YES. Maximal size of possible extension queue 3605. Compared 397013 event pairs, 6222 based on Foata normal form. 734/42287 useless extension candidates. Maximal degree in co-relation 219664. Up to 20513 conditions per place. [2021-03-25 05:18:42,852 INFO L132 encePairwiseOnDemand]: 217/233 looper letters, 107 selfloop transitions, 91 changer transitions 0/211 dead transitions. [2021-03-25 05:18:42,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 211 transitions, 2267 flow [2021-03-25 05:18:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 05:18:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 05:18:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1430 transitions. [2021-03-25 05:18:42,855 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6137339055793991 [2021-03-25 05:18:42,855 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1430 transitions. [2021-03-25 05:18:42,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1430 transitions. [2021-03-25 05:18:42,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:18:42,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1430 transitions. [2021-03-25 05:18:42,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 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) [2021-03-25 05:18:42,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 233.0) internal successors, (2563), 11 states have internal predecessors, (2563), 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) [2021-03-25 05:18:42,859 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 233.0) internal successors, (2563), 11 states have internal predecessors, (2563), 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) [2021-03-25 05:18:42,859 INFO L185 Difference]: Start difference. First operand has 84 places, 111 transitions, 1107 flow. Second operand 10 states and 1430 transitions. [2021-03-25 05:18:42,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 211 transitions, 2267 flow [2021-03-25 05:18:43,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 211 transitions, 2074 flow, removed 26 selfloop flow, removed 7 redundant places. [2021-03-25 05:18:43,334 INFO L241 Difference]: Finished difference. Result has 90 places, 138 transitions, 1487 flow [2021-03-25 05:18:43,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1487, PETRI_PLACES=90, PETRI_TRANSITIONS=138} [2021-03-25 05:18:43,334 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2021-03-25 05:18:43,334 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:18:43,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 138 transitions, 1487 flow [2021-03-25 05:18:43,334 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 138 transitions, 1487 flow [2021-03-25 05:18:43,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 138 transitions, 1487 flow [2021-03-25 05:18:45,253 INFO L129 PetriNetUnfolder]: 10611/20331 cut-off events. [2021-03-25 05:18:45,254 INFO L130 PetriNetUnfolder]: For 103864/160341 co-relation queries the response was YES. [2021-03-25 05:18:45,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108486 conditions, 20331 events. 10611/20331 cut-off events. For 103864/160341 co-relation queries the response was YES. Maximal size of possible extension queue 2469. Compared 208929 event pairs, 3098 based on Foata normal form. 78/18111 useless extension candidates. Maximal degree in co-relation 108441. Up to 12842 conditions per place. [2021-03-25 05:18:45,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 3358 [2021-03-25 05:23:32,218 INFO L154 LiptonReduction]: Checked pairs total: 3253 [2021-03-25 05:23:32,218 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:23:32,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 288885 [2021-03-25 05:23:32,219 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 138 transitions, 1487 flow [2021-03-25 05:23:32,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 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) [2021-03-25 05:23:32,219 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:23:32,219 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:23:32,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 05:23:32,219 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:23:32,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:23:32,220 INFO L82 PathProgramCache]: Analyzing trace with hash -761779726, now seen corresponding path program 1 times [2021-03-25 05:23:32,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:23:32,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772575153] [2021-03-25 05:23:32,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:23:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:23:32,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:23:32,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:23:32,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:23:32,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 05:23:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:23:32,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772575153] [2021-03-25 05:23:32,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379686348] [2021-03-25 05:23:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 05:23:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:23:32,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 05:23:32,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 05:23:32,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 05:23:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:23:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:23:32,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:23:32,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:23:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:23:32,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 05:23:32,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2021-03-25 05:23:32,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224150454] [2021-03-25 05:23:32,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 05:23:32,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:23:32,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 05:23:32,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-03-25 05:23:32,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 235 [2021-03-25 05:23:32,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 138 transitions, 1487 flow. Second operand has 13 states, 13 states have (on average 133.3846153846154) internal successors, (1734), 13 states have internal predecessors, (1734), 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) [2021-03-25 05:23:32,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:23:32,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 235 [2021-03-25 05:23:32,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:23:37,275 INFO L129 PetriNetUnfolder]: 23809/38564 cut-off events. [2021-03-25 05:23:37,275 INFO L130 PetriNetUnfolder]: For 219300/584313 co-relation queries the response was YES. [2021-03-25 05:23:37,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206812 conditions, 38564 events. 23809/38564 cut-off events. For 219300/584313 co-relation queries the response was YES. Maximal size of possible extension queue 2722. Compared 334232 event pairs, 1379 based on Foata normal form. 4916/41520 useless extension candidates. Maximal degree in co-relation 206765. Up to 15572 conditions per place. [2021-03-25 05:23:37,722 INFO L132 encePairwiseOnDemand]: 214/235 looper letters, 124 selfloop transitions, 249 changer transitions 0/388 dead transitions. [2021-03-25 05:23:37,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 388 transitions, 4616 flow [2021-03-25 05:23:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 05:23:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 05:23:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2074 transitions. [2021-03-25 05:23:37,725 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6303951367781155 [2021-03-25 05:23:37,725 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2074 transitions. [2021-03-25 05:23:37,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2074 transitions. [2021-03-25 05:23:37,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:23:37,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2074 transitions. [2021-03-25 05:23:37,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 148.14285714285714) internal successors, (2074), 14 states have internal predecessors, (2074), 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) [2021-03-25 05:23:37,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 235.0) internal successors, (3525), 15 states have internal predecessors, (3525), 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) [2021-03-25 05:23:37,731 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 235.0) internal successors, (3525), 15 states have internal predecessors, (3525), 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) [2021-03-25 05:23:37,731 INFO L185 Difference]: Start difference. First operand has 90 places, 138 transitions, 1487 flow. Second operand 14 states and 2074 transitions. [2021-03-25 05:23:37,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 388 transitions, 4616 flow [2021-03-25 05:23:39,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 388 transitions, 4040 flow, removed 93 selfloop flow, removed 6 redundant places. [2021-03-25 05:23:39,685 INFO L241 Difference]: Finished difference. Result has 104 places, 303 transitions, 3803 flow [2021-03-25 05:23:39,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=1273, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3803, PETRI_PLACES=104, PETRI_TRANSITIONS=303} [2021-03-25 05:23:39,685 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 42 predicate places. [2021-03-25 05:23:39,685 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:23:39,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 303 transitions, 3803 flow [2021-03-25 05:23:39,686 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 303 transitions, 3803 flow [2021-03-25 05:23:39,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 303 transitions, 3803 flow [2021-03-25 05:23:41,548 INFO L129 PetriNetUnfolder]: 8398/16566 cut-off events. [2021-03-25 05:23:41,548 INFO L130 PetriNetUnfolder]: For 134470/319377 co-relation queries the response was YES. [2021-03-25 05:23:41,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102934 conditions, 16566 events. 8398/16566 cut-off events. For 134470/319377 co-relation queries the response was YES. Maximal size of possible extension queue 1702. Compared 169104 event pairs, 540 based on Foata normal form. 145/15256 useless extension candidates. Maximal degree in co-relation 102882. Up to 9124 conditions per place. [2021-03-25 05:23:41,825 INFO L142 LiptonReduction]: Number of co-enabled transitions 7172 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown