/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:39:32,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:39:32,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:39:32,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 02:39:32,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 02:39:32,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 02:39:32,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 02:39:32,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 02:39:32,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 02:39:32,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 02:39:32,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 02:39:32,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 02:39:32,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:39:32,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:39:32,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:39:32,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:39:32,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:39:32,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:39:32,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:39:32,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:39:32,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:39:32,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:39:32,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:39:32,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:39:32,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:39:32,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:39:32,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:39:32,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:39:32,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 02:39:32,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:39:32,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:39:32,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:39:32,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:39:32,729 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:39:32,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:39:32,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:39:32,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:39:32,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:39:32,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:39:32,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:39:32,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:39:32,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:39:32,731 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:39:32,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:39:32,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:39:32,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:39:32,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:39:32,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:39:32,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:39:32,981 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:39:32,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-03-11 02:39:33,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b967cce/4ee84d91590f48f3b8f632f192cffc1a/FLAGd24de9644 [2021-03-11 02:39:33,430 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:39:33,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-03-11 02:39:33,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b967cce/4ee84d91590f48f3b8f632f192cffc1a/FLAGd24de9644 [2021-03-11 02:39:33,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b967cce/4ee84d91590f48f3b8f632f192cffc1a [2021-03-11 02:39:33,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:39:33,473 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:39:33,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:39:33,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:39:33,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:39:33,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e163fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33, skipping insertion in model container [2021-03-11 02:39:33,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:39:33,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:39:33,617 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-wmm/thin002_tso.oepc.i[950,963] [2021-03-11 02:39:33,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:39:33,717 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:39:33,724 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-wmm/thin002_tso.oepc.i[950,963] [2021-03-11 02:39:33,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:39:33,785 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:39:33,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33 WrapperNode [2021-03-11 02:39:33,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:39:33,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:39:33,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:39:33,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:39:33,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:39:33,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:39:33,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:39:33,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:39:33,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... [2021-03-11 02:39:33,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:39:33,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:39:33,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:39:33,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:39:33,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:39:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:39:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:39:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:39:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:39:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:39:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 02:39:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:39:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:39:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:39:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:39:33,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:39:34,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:39:34,109 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:39:34,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:39:34 BoogieIcfgContainer [2021-03-11 02:39:34,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:39:34,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:39:34,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:39:34,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:39:34,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:39:33" (1/3) ... [2021-03-11 02:39:34,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97ab498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:39:34, skipping insertion in model container [2021-03-11 02:39:34,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:33" (2/3) ... [2021-03-11 02:39:34,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97ab498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:39:34, skipping insertion in model container [2021-03-11 02:39:34,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:39:34" (3/3) ... [2021-03-11 02:39:34,115 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-03-11 02:39:34,122 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:39:34,126 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:39:34,127 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:39:34,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,174 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,174 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,175 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,175 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,184 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,193 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:34,196 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:39:34,209 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 02:39:34,233 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:39:34,233 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:39:34,233 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:39:34,233 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:39:34,233 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:39:34,233 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:39:34,233 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:39:34,234 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:39:34,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-03-11 02:39:34,294 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-03-11 02:39:34,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:39:34,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-03-11 02:39:34,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-03-11 02:39:34,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-03-11 02:39:34,332 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2021-03-11 02:39:34,332 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:39:34,333 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:34,333 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:34,333 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:34,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:34,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1187004493, now seen corresponding path program 1 times [2021-03-11 02:39:34,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:34,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318994774] [2021-03-11 02:39:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:34,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:34,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:34,584 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:34,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:34,597 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:34,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:34,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:34,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:34,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:34,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:34,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318994774] [2021-03-11 02:39:34,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:34,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:34,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70091556] [2021-03-11 02:39:34,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:34,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:34,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:34,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:34,647 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2021-03-11 02:39:34,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 158 flow. Second operand has 7 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:34,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:34,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2021-03-11 02:39:34,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:34,809 INFO L129 PetriNetUnfolder]: 197/550 cut-off events. [2021-03-11 02:39:34,809 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:39:34,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 550 events. 197/550 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3031 event pairs, 47 based on Foata normal form. 19/547 useless extension candidates. Maximal degree in co-relation 849. Up to 121 conditions per place. [2021-03-11 02:39:34,813 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 14 selfloop transitions, 3 changer transitions 28/103 dead transitions. [2021-03-11 02:39:34,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 103 transitions, 308 flow [2021-03-11 02:39:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 779 transitions. [2021-03-11 02:39:34,824 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.856043956043956 [2021-03-11 02:39:34,825 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 779 transitions. [2021-03-11 02:39:34,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 779 transitions. [2021-03-11 02:39:34,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:34,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 779 transitions. [2021-03-11 02:39:34,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.9) internal successors, (779), 10 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:34,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:34,839 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:34,841 INFO L185 Difference]: Start difference. First operand has 85 places, 73 transitions, 158 flow. Second operand 10 states and 779 transitions. [2021-03-11 02:39:34,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 103 transitions, 308 flow [2021-03-11 02:39:34,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 103 transitions, 304 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:39:34,849 INFO L241 Difference]: Finished difference. Result has 97 places, 72 transitions, 174 flow [2021-03-11 02:39:34,850 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=174, PETRI_PLACES=97, PETRI_TRANSITIONS=72} [2021-03-11 02:39:34,851 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 12 predicate places. [2021-03-11 02:39:34,851 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 72 transitions, 174 flow [2021-03-11 02:39:34,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:34,851 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:34,851 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:34,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:39:34,852 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:34,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:34,852 INFO L82 PathProgramCache]: Analyzing trace with hash -654752332, now seen corresponding path program 1 times [2021-03-11 02:39:34,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:34,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500268608] [2021-03-11 02:39:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:34,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:34,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:34,914 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:34,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:34,923 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:34,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:34,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:34,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:34,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:34,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:34,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500268608] [2021-03-11 02:39:34,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:34,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:34,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706019965] [2021-03-11 02:39:34,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:34,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:34,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:34,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:34,957 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2021-03-11 02:39:34,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 72 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:34,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:34,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2021-03-11 02:39:34,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:35,122 INFO L129 PetriNetUnfolder]: 81/274 cut-off events. [2021-03-11 02:39:35,123 INFO L130 PetriNetUnfolder]: For 61/99 co-relation queries the response was YES. [2021-03-11 02:39:35,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 274 events. 81/274 cut-off events. For 61/99 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1103 event pairs, 5 based on Foata normal form. 8/266 useless extension candidates. Maximal degree in co-relation 489. Up to 61 conditions per place. [2021-03-11 02:39:35,126 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 14 selfloop transitions, 3 changer transitions 22/97 dead transitions. [2021-03-11 02:39:35,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 97 transitions, 323 flow [2021-03-11 02:39:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 771 transitions. [2021-03-11 02:39:35,128 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8472527472527472 [2021-03-11 02:39:35,128 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 771 transitions. [2021-03-11 02:39:35,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 771 transitions. [2021-03-11 02:39:35,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:35,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 771 transitions. [2021-03-11 02:39:35,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.1) internal successors, (771), 10 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,132 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,132 INFO L185 Difference]: Start difference. First operand has 97 places, 72 transitions, 174 flow. Second operand 10 states and 771 transitions. [2021-03-11 02:39:35,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 97 transitions, 323 flow [2021-03-11 02:39:35,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 97 transitions, 287 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-11 02:39:35,138 INFO L241 Difference]: Finished difference. Result has 98 places, 72 transitions, 178 flow [2021-03-11 02:39:35,138 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=178, PETRI_PLACES=98, PETRI_TRANSITIONS=72} [2021-03-11 02:39:35,138 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 13 predicate places. [2021-03-11 02:39:35,139 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 72 transitions, 178 flow [2021-03-11 02:39:35,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,139 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:35,139 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:35,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:39:35,139 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:35,141 INFO L82 PathProgramCache]: Analyzing trace with hash -895550765, now seen corresponding path program 1 times [2021-03-11 02:39:35,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:35,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619956027] [2021-03-11 02:39:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:35,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:35,227 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:35,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:35,244 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:35,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:35,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:35,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619956027] [2021-03-11 02:39:35,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:35,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:35,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262261747] [2021-03-11 02:39:35,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:35,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:35,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:35,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:35,305 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2021-03-11 02:39:35,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 72 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:35,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2021-03-11 02:39:35,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:35,400 INFO L129 PetriNetUnfolder]: 36/213 cut-off events. [2021-03-11 02:39:35,400 INFO L130 PetriNetUnfolder]: For 54/116 co-relation queries the response was YES. [2021-03-11 02:39:35,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 213 events. 36/213 cut-off events. For 54/116 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 818 event pairs, 15 based on Foata normal form. 4/208 useless extension candidates. Maximal degree in co-relation 353. Up to 36 conditions per place. [2021-03-11 02:39:35,401 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 15 selfloop transitions, 2 changer transitions 16/91 dead transitions. [2021-03-11 02:39:35,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 91 transitions, 306 flow [2021-03-11 02:39:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:39:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:39:35,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2021-03-11 02:39:35,403 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8449328449328449 [2021-03-11 02:39:35,403 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 692 transitions. [2021-03-11 02:39:35,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 692 transitions. [2021-03-11 02:39:35,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:35,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 692 transitions. [2021-03-11 02:39:35,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.88888888888889) internal successors, (692), 9 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,406 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,406 INFO L185 Difference]: Start difference. First operand has 98 places, 72 transitions, 178 flow. Second operand 9 states and 692 transitions. [2021-03-11 02:39:35,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 91 transitions, 306 flow [2021-03-11 02:39:35,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 270 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-11 02:39:35,408 INFO L241 Difference]: Finished difference. Result has 98 places, 72 transitions, 180 flow [2021-03-11 02:39:35,409 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=180, PETRI_PLACES=98, PETRI_TRANSITIONS=72} [2021-03-11 02:39:35,409 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 13 predicate places. [2021-03-11 02:39:35,409 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 72 transitions, 180 flow [2021-03-11 02:39:35,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,409 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:35,409 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:35,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:39:35,409 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:35,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:35,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1826878870, now seen corresponding path program 1 times [2021-03-11 02:39:35,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:35,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889080943] [2021-03-11 02:39:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:35,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:35,477 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:35,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:35,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:35,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889080943] [2021-03-11 02:39:35,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:35,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:39:35,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736699075] [2021-03-11 02:39:35,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:39:35,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:35,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:39:35,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:39:35,511 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2021-03-11 02:39:35,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 72 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:35,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2021-03-11 02:39:35,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:35,608 INFO L129 PetriNetUnfolder]: 3/95 cut-off events. [2021-03-11 02:39:35,608 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-03-11 02:39:35,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 95 events. 3/95 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 138 event pairs, 0 based on Foata normal form. 2/96 useless extension candidates. Maximal degree in co-relation 142. Up to 7 conditions per place. [2021-03-11 02:39:35,609 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 6 selfloop transitions, 2 changer transitions 11/82 dead transitions. [2021-03-11 02:39:35,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 82 transitions, 258 flow [2021-03-11 02:39:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:39:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:39:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 731 transitions. [2021-03-11 02:39:35,610 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8925518925518926 [2021-03-11 02:39:35,610 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 731 transitions. [2021-03-11 02:39:35,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 731 transitions. [2021-03-11 02:39:35,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:35,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 731 transitions. [2021-03-11 02:39:35,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,613 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,613 INFO L185 Difference]: Start difference. First operand has 98 places, 72 transitions, 180 flow. Second operand 9 states and 731 transitions. [2021-03-11 02:39:35,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 82 transitions, 258 flow [2021-03-11 02:39:35,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 82 transitions, 226 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:39:35,617 INFO L241 Difference]: Finished difference. Result has 99 places, 71 transitions, 182 flow [2021-03-11 02:39:35,617 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=182, PETRI_PLACES=99, PETRI_TRANSITIONS=71} [2021-03-11 02:39:35,617 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 14 predicate places. [2021-03-11 02:39:35,617 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 71 transitions, 182 flow [2021-03-11 02:39:35,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,618 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:35,618 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:35,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:39:35,618 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:35,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:35,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1896948041, now seen corresponding path program 1 times [2021-03-11 02:39:35,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:35,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938254019] [2021-03-11 02:39:35,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:35,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:35,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:35,691 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:35,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:35,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:35,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938254019] [2021-03-11 02:39:35,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:35,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:35,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629796750] [2021-03-11 02:39:35,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:35,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:35,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:35,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:35,732 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2021-03-11 02:39:35,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 71 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:35,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2021-03-11 02:39:35,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:35,857 INFO L129 PetriNetUnfolder]: 4/92 cut-off events. [2021-03-11 02:39:35,858 INFO L130 PetriNetUnfolder]: For 44/51 co-relation queries the response was YES. [2021-03-11 02:39:35,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 92 events. 4/92 cut-off events. For 44/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 153. Up to 7 conditions per place. [2021-03-11 02:39:35,858 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 6 selfloop transitions, 4 changer transitions 12/83 dead transitions. [2021-03-11 02:39:35,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 83 transitions, 285 flow [2021-03-11 02:39:35,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-03-11 02:39:35,860 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8725274725274725 [2021-03-11 02:39:35,860 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-03-11 02:39:35,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-03-11 02:39:35,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:35,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-03-11 02:39:35,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,864 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,864 INFO L185 Difference]: Start difference. First operand has 99 places, 71 transitions, 182 flow. Second operand 10 states and 794 transitions. [2021-03-11 02:39:35,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 83 transitions, 285 flow [2021-03-11 02:39:35,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 251 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:39:35,866 INFO L241 Difference]: Finished difference. Result has 101 places, 71 transitions, 196 flow [2021-03-11 02:39:35,866 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=196, PETRI_PLACES=101, PETRI_TRANSITIONS=71} [2021-03-11 02:39:35,867 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 16 predicate places. [2021-03-11 02:39:35,867 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 71 transitions, 196 flow [2021-03-11 02:39:35,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,867 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:35,867 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:35,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:39:35,867 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:35,868 INFO L82 PathProgramCache]: Analyzing trace with hash 205761863, now seen corresponding path program 1 times [2021-03-11 02:39:35,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:35,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546750469] [2021-03-11 02:39:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:35,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:35,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:35,927 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:35,935 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:35,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:35,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:35,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:35,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546750469] [2021-03-11 02:39:35,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:35,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:39:35,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895316014] [2021-03-11 02:39:35,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:39:35,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:35,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:39:35,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:39:35,974 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 91 [2021-03-11 02:39:35,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 71 transitions, 196 flow. Second operand has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:35,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:35,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 91 [2021-03-11 02:39:35,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:36,111 INFO L129 PetriNetUnfolder]: 20/162 cut-off events. [2021-03-11 02:39:36,111 INFO L130 PetriNetUnfolder]: For 72/108 co-relation queries the response was YES. [2021-03-11 02:39:36,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 162 events. 20/162 cut-off events. For 72/108 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 584 event pairs, 9 based on Foata normal form. 6/161 useless extension candidates. Maximal degree in co-relation 317. Up to 21 conditions per place. [2021-03-11 02:39:36,112 INFO L132 encePairwiseOnDemand]: 82/91 looper letters, 13 selfloop transitions, 5 changer transitions 14/87 dead transitions. [2021-03-11 02:39:36,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 87 transitions, 343 flow [2021-03-11 02:39:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 02:39:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 02:39:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 815 transitions. [2021-03-11 02:39:36,114 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8141858141858141 [2021-03-11 02:39:36,114 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 815 transitions. [2021-03-11 02:39:36,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 815 transitions. [2021-03-11 02:39:36,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:36,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 815 transitions. [2021-03-11 02:39:36,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,117 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,117 INFO L185 Difference]: Start difference. First operand has 101 places, 71 transitions, 196 flow. Second operand 11 states and 815 transitions. [2021-03-11 02:39:36,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 87 transitions, 343 flow [2021-03-11 02:39:36,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 87 transitions, 289 flow, removed 20 selfloop flow, removed 10 redundant places. [2021-03-11 02:39:36,119 INFO L241 Difference]: Finished difference. Result has 103 places, 71 transitions, 202 flow [2021-03-11 02:39:36,120 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=202, PETRI_PLACES=103, PETRI_TRANSITIONS=71} [2021-03-11 02:39:36,120 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 18 predicate places. [2021-03-11 02:39:36,120 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 71 transitions, 202 flow [2021-03-11 02:39:36,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,120 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:36,120 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:36,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:39:36,120 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:36,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:36,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1754242943, now seen corresponding path program 1 times [2021-03-11 02:39:36,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:36,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842944350] [2021-03-11 02:39:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:36,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:36,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:36,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:36,168 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:36,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:36,178 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:36,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:36,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:36,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842944350] [2021-03-11 02:39:36,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:36,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:39:36,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231948748] [2021-03-11 02:39:36,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:39:36,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:36,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:39:36,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:39:36,214 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 91 [2021-03-11 02:39:36,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 71 transitions, 202 flow. Second operand has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:36,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 91 [2021-03-11 02:39:36,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:36,325 INFO L129 PetriNetUnfolder]: 9/130 cut-off events. [2021-03-11 02:39:36,325 INFO L130 PetriNetUnfolder]: For 87/106 co-relation queries the response was YES. [2021-03-11 02:39:36,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 130 events. 9/130 cut-off events. For 87/106 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 356 event pairs, 3 based on Foata normal form. 5/133 useless extension candidates. Maximal degree in co-relation 244. Up to 12 conditions per place. [2021-03-11 02:39:36,326 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 12 selfloop transitions, 4 changer transitions 16/87 dead transitions. [2021-03-11 02:39:36,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 87 transitions, 351 flow [2021-03-11 02:39:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 744 transitions. [2021-03-11 02:39:36,328 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8175824175824176 [2021-03-11 02:39:36,328 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 744 transitions. [2021-03-11 02:39:36,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 744 transitions. [2021-03-11 02:39:36,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:36,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 744 transitions. [2021-03-11 02:39:36,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.4) internal successors, (744), 10 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,331 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,332 INFO L185 Difference]: Start difference. First operand has 103 places, 71 transitions, 202 flow. Second operand 10 states and 744 transitions. [2021-03-11 02:39:36,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 87 transitions, 351 flow [2021-03-11 02:39:36,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 87 transitions, 295 flow, removed 20 selfloop flow, removed 11 redundant places. [2021-03-11 02:39:36,335 INFO L241 Difference]: Finished difference. Result has 103 places, 71 transitions, 204 flow [2021-03-11 02:39:36,335 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=204, PETRI_PLACES=103, PETRI_TRANSITIONS=71} [2021-03-11 02:39:36,335 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 18 predicate places. [2021-03-11 02:39:36,335 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 71 transitions, 204 flow [2021-03-11 02:39:36,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,336 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:36,336 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:36,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:39:36,336 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:36,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:36,336 INFO L82 PathProgramCache]: Analyzing trace with hash -454491709, now seen corresponding path program 1 times [2021-03-11 02:39:36,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:36,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166797183] [2021-03-11 02:39:36,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:36,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:36,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:36,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:36,412 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:36,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:36,420 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:36,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:36,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:36,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:36,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:36,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:36,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166797183] [2021-03-11 02:39:36,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:36,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:39:36,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63837092] [2021-03-11 02:39:36,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:39:36,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:36,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:39:36,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:39:36,457 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 91 [2021-03-11 02:39:36,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 71 transitions, 204 flow. Second operand has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:36,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 91 [2021-03-11 02:39:36,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:36,558 INFO L129 PetriNetUnfolder]: 4/77 cut-off events. [2021-03-11 02:39:36,558 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-11 02:39:36,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 77 events. 4/77 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 143. Up to 5 conditions per place. [2021-03-11 02:39:36,559 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2021-03-11 02:39:36,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 76 transitions, 274 flow [2021-03-11 02:39:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 02:39:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 02:39:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 805 transitions. [2021-03-11 02:39:36,561 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8041958041958042 [2021-03-11 02:39:36,561 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 805 transitions. [2021-03-11 02:39:36,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 805 transitions. [2021-03-11 02:39:36,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:36,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 805 transitions. [2021-03-11 02:39:36,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.18181818181819) internal successors, (805), 11 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) [2021-03-11 02:39:36,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,564 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,564 INFO L185 Difference]: Start difference. First operand has 103 places, 71 transitions, 204 flow. Second operand 11 states and 805 transitions. [2021-03-11 02:39:36,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 76 transitions, 274 flow [2021-03-11 02:39:36,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 76 transitions, 234 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-11 02:39:36,565 INFO L241 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2021-03-11 02:39:36,565 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2021-03-11 02:39:36,565 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 11 predicate places. [2021-03-11 02:39:36,565 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2021-03-11 02:39:36,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:36,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:39:36,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:39:36 BasicIcfg [2021-03-11 02:39:36,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:39:36,570 INFO L168 Benchmark]: Toolchain (without parser) took 3099.67 ms. Allocated memory was 352.3 MB in the beginning and 423.6 MB in the end (delta: 71.3 MB). Free memory was 315.8 MB in the beginning and 295.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 94.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:36,570 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 352.3 MB. Free memory is still 333.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:39:36,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.26 ms. Allocated memory is still 352.3 MB. Free memory was 315.3 MB in the beginning and 314.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:36,570 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.57 ms. Allocated memory is still 352.3 MB. Free memory was 314.0 MB in the beginning and 311.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:36,570 INFO L168 Benchmark]: Boogie Preprocessor took 14.62 ms. Allocated memory is still 352.3 MB. Free memory was 311.9 MB in the beginning and 309.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:36,571 INFO L168 Benchmark]: RCFGBuilder took 277.57 ms. Allocated memory is still 352.3 MB. Free memory was 309.8 MB in the beginning and 284.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:36,571 INFO L168 Benchmark]: TraceAbstraction took 2457.79 ms. Allocated memory was 352.3 MB in the beginning and 423.6 MB in the end (delta: 71.3 MB). Free memory was 283.6 MB in the beginning and 295.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:36,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 352.3 MB. Free memory is still 333.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 312.26 ms. Allocated memory is still 352.3 MB. Free memory was 315.3 MB in the beginning and 314.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.57 ms. Allocated memory is still 352.3 MB. Free memory was 314.0 MB in the beginning and 311.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.62 ms. Allocated memory is still 352.3 MB. Free memory was 311.9 MB in the beginning and 309.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 277.57 ms. Allocated memory is still 352.3 MB. Free memory was 309.8 MB in the beginning and 284.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2457.79 ms. Allocated memory was 352.3 MB in the beginning and 423.6 MB in the end (delta: 71.3 MB). Free memory was 283.6 MB in the beginning and 295.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 23.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2337.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1120.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 131 SDtfs, 242 SDslu, 412 SDs, 0 SdLazy, 246 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 794.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=7, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.2ms SsaConstructionTime, 169.0ms SatisfiabilityAnalysisTime, 770.1ms InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 2004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...