/usr/bin/java -Xmx8000000000 -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-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 05:52:31,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 05:52:31,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 05:52:31,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 05:52:31,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 05:52:31,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 05:52:31,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 05:52:31,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 05:52:31,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 05:52:31,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 05:52:31,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 05:52:31,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 05:52:31,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 05:52:31,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 05:52:31,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 05:52:31,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 05:52:31,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 05:52:31,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 05:52:31,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 05:52:31,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 05:52:31,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 05:52:31,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 05:52:31,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 05:52:31,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 05:52:31,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 05:52:31,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 05:52:31,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 05:52:31,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 05:52:31,724 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-OGIterative-CovSimpl.epf [2021-08-13 05:52:31,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 05:52:31,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 05:52:31,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 05:52:31,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 05:52:31,770 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 05:52:31,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 05:52:31,771 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 05:52:31,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 05:52:31,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 05:52:31,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 05:52:31,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 05:52:31,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 05:52:31,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 05:52:31,773 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 05:52:31,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 05:52:31,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 05:52:31,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 05:52:31,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 05:52:31,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 05:52:31,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 05:52:31,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 05:52:31,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 05:52:31,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 05:52:31,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 05:52:31,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 05:52:31,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 05:52:31,776 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 05:52:32,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 05:52:32,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 05:52:32,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 05:52:32,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 05:52:32,105 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 05:52:32,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-08-13 05:52:32,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d31f884c/1ba0fe3624d44aa1b616f1a4d68bee83/FLAGe9ed87dee [2021-08-13 05:52:32,707 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 05:52:32,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-08-13 05:52:32,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d31f884c/1ba0fe3624d44aa1b616f1a4d68bee83/FLAGe9ed87dee [2021-08-13 05:52:33,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d31f884c/1ba0fe3624d44aa1b616f1a4d68bee83 [2021-08-13 05:52:33,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 05:52:33,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 05:52:33,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 05:52:33,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 05:52:33,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 05:52:33,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1955f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33, skipping insertion in model container [2021-08-13 05:52:33,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 05:52:33,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 05:52:33,229 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i[949,962] [2021-08-13 05:52:33,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 05:52:33,350 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 05:52:33,359 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i[949,962] [2021-08-13 05:52:33,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 05:52:33,489 INFO L208 MainTranslator]: Completed translation [2021-08-13 05:52:33,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33 WrapperNode [2021-08-13 05:52:33,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 05:52:33,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 05:52:33,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 05:52:33,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 05:52:33,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 05:52:33,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 05:52:33,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 05:52:33,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 05:52:33,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (1/1) ... [2021-08-13 05:52:33,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 05:52:33,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 05:52:33,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 05:52:33,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 05:52:33,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (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 [2021-08-13 05:52:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 05:52:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 05:52:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 05:52:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 05:52:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 05:52:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 05:52:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 05:52:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 05:52:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 05:52:33,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 05:52:33,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 05:52:33,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 05:52:33,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 05:52:33,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 05:52:33,689 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 05:52:34,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 05:52:34,145 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 05:52:34,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:52:34 BoogieIcfgContainer [2021-08-13 05:52:34,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 05:52:34,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 05:52:34,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 05:52:34,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 05:52:34,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 05:52:33" (1/3) ... [2021-08-13 05:52:34,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2828a03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:52:34, skipping insertion in model container [2021-08-13 05:52:34,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:52:33" (2/3) ... [2021-08-13 05:52:34,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2828a03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:52:34, skipping insertion in model container [2021-08-13 05:52:34,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:52:34" (3/3) ... [2021-08-13 05:52:34,154 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2021-08-13 05:52:34,159 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 05:52:34,160 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 05:52:34,160 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 05:52:34,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,200 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,200 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,215 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:52:34,227 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 05:52:34,249 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 05:52:34,281 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 05:52:34,281 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 05:52:34,281 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 05:52:34,281 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 05:52:34,281 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 05:52:34,281 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 05:52:34,282 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 05:52:34,282 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 05:52:34,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2021-08-13 05:52:34,351 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-08-13 05:52:34,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 05:52:34,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 05:52:34,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2021-08-13 05:52:34,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2021-08-13 05:52:34,396 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-08-13 05:52:34,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 05:52:34,396 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:34,397 INFO L266 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] [2021-08-13 05:52:34,397 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:34,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1572123417, now seen corresponding path program 1 times [2021-08-13 05:52:34,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:34,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739464368] [2021-08-13 05:52:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:34,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:34,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:34,766 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 05:52:34,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 05:52:34,796 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:34,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:34,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:34,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:34,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:34,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:34,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:34,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:34,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:34,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739464368] [2021-08-13 05:52:34,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739464368] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:34,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:34,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 05:52:34,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439676055] [2021-08-13 05:52:34,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 05:52:34,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:34,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 05:52:34,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 05:52:34,906 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2021-08-13 05:52:34,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 145 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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) [2021-08-13 05:52:34,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:34,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2021-08-13 05:52:34,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:35,326 INFO L129 PetriNetUnfolder]: 645/1449 cut-off events. [2021-08-13 05:52:35,327 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 05:52:35,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1449 events. 645/1449 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9747 event pairs, 136 based on Foata normal form. 48/1456 useless extension candidates. Maximal degree in co-relation 2456. Up to 305 conditions per place. [2021-08-13 05:52:35,338 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 19 selfloop transitions, 7 changer transitions 43/120 dead transitions. [2021-08-13 05:52:35,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 120 transitions, 387 flow [2021-08-13 05:52:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 05:52:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 05:52:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 640 transitions. [2021-08-13 05:52:35,353 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.856760374832664 [2021-08-13 05:52:35,353 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 640 transitions. [2021-08-13 05:52:35,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 640 transitions. [2021-08-13 05:52:35,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:35,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 640 transitions. [2021-08-13 05:52:35,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2021-08-13 05:52:35,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2021-08-13 05:52:35,371 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2021-08-13 05:52:35,372 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2021-08-13 05:52:35,372 INFO L482 AbstractCegarLoop]: Abstraction has has 85 places, 120 transitions, 387 flow [2021-08-13 05:52:35,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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) [2021-08-13 05:52:35,373 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:35,373 INFO L266 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] [2021-08-13 05:52:35,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 05:52:35,373 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:35,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1466580262, now seen corresponding path program 1 times [2021-08-13 05:52:35,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:35,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240719066] [2021-08-13 05:52:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:35,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:35,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:35,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:35,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:35,452 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 05:52:35,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 05:52:35,465 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:35,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:35,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:35,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:35,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:35,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:35,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:35,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:35,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:35,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240719066] [2021-08-13 05:52:35,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240719066] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:35,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:35,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:52:35,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821831435] [2021-08-13 05:52:35,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:52:35,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:35,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:52:35,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:52:35,513 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2021-08-13 05:52:35,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 120 transitions, 387 flow. Second operand has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 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) [2021-08-13 05:52:35,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:35,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2021-08-13 05:52:35,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:35,938 INFO L129 PetriNetUnfolder]: 713/1670 cut-off events. [2021-08-13 05:52:35,938 INFO L130 PetriNetUnfolder]: For 49/1157 co-relation queries the response was YES. [2021-08-13 05:52:35,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4018 conditions, 1670 events. 713/1670 cut-off events. For 49/1157 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 12027 event pairs, 15 based on Foata normal form. 38/1671 useless extension candidates. Maximal degree in co-relation 3979. Up to 371 conditions per place. [2021-08-13 05:52:35,946 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 25 selfloop transitions, 9 changer transitions 147/232 dead transitions. [2021-08-13 05:52:35,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 232 transitions, 1197 flow [2021-08-13 05:52:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 05:52:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 05:52:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 907 transitions. [2021-08-13 05:52:35,949 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8405931417979611 [2021-08-13 05:52:35,950 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 907 transitions. [2021-08-13 05:52:35,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 907 transitions. [2021-08-13 05:52:35,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:35,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 907 transitions. [2021-08-13 05:52:35,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.76923076923077) internal successors, (907), 13 states have internal predecessors, (907), 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) [2021-08-13 05:52:35,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:35,956 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:35,956 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 20 predicate places. [2021-08-13 05:52:35,956 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 232 transitions, 1197 flow [2021-08-13 05:52:35,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 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) [2021-08-13 05:52:35,957 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:35,957 INFO L266 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] [2021-08-13 05:52:35,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 05:52:35,957 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:35,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:35,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1161954026, now seen corresponding path program 1 times [2021-08-13 05:52:35,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:35,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018083798] [2021-08-13 05:52:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:36,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:36,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:36,045 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 05:52:36,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 05:52:36,062 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:36,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:36,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:36,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:36,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:36,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:36,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018083798] [2021-08-13 05:52:36,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018083798] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:36,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:36,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:52:36,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202720852] [2021-08-13 05:52:36,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:52:36,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:36,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:52:36,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:52:36,110 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2021-08-13 05:52:36,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 232 transitions, 1197 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2021-08-13 05:52:36,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:36,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2021-08-13 05:52:36,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:36,595 INFO L129 PetriNetUnfolder]: 859/2062 cut-off events. [2021-08-13 05:52:36,595 INFO L130 PetriNetUnfolder]: For 164/2377 co-relation queries the response was YES. [2021-08-13 05:52:36,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6386 conditions, 2062 events. 859/2062 cut-off events. For 164/2377 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 16026 event pairs, 10 based on Foata normal form. 32/2065 useless extension candidates. Maximal degree in co-relation 6341. Up to 544 conditions per place. [2021-08-13 05:52:36,610 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 28 selfloop transitions, 19 changer transitions 331/429 dead transitions. [2021-08-13 05:52:36,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 429 transitions, 3135 flow [2021-08-13 05:52:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 05:52:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 05:52:36,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 915 transitions. [2021-08-13 05:52:36,614 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8480074142724745 [2021-08-13 05:52:36,615 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 915 transitions. [2021-08-13 05:52:36,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 915 transitions. [2021-08-13 05:52:36,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:36,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 915 transitions. [2021-08-13 05:52:36,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.38461538461539) internal successors, (915), 13 states have internal predecessors, (915), 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) [2021-08-13 05:52:36,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:36,621 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:36,621 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 32 predicate places. [2021-08-13 05:52:36,621 INFO L482 AbstractCegarLoop]: Abstraction has has 109 places, 429 transitions, 3135 flow [2021-08-13 05:52:36,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2021-08-13 05:52:36,621 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:36,621 INFO L266 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] [2021-08-13 05:52:36,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 05:52:36,622 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:36,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:36,623 INFO L82 PathProgramCache]: Analyzing trace with hash -221960421, now seen corresponding path program 1 times [2021-08-13 05:52:36,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:36,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165034343] [2021-08-13 05:52:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:36,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:36,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:36,688 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 05:52:36,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 05:52:36,699 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:36,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:36,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:36,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:36,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:36,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:36,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:36,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165034343] [2021-08-13 05:52:36,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165034343] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:36,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:36,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:52:36,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365210914] [2021-08-13 05:52:36,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:52:36,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:36,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:52:36,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:52:36,743 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2021-08-13 05:52:36,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 429 transitions, 3135 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2021-08-13 05:52:36,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:36,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2021-08-13 05:52:36,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:37,332 INFO L129 PetriNetUnfolder]: 900/2346 cut-off events. [2021-08-13 05:52:37,332 INFO L130 PetriNetUnfolder]: For 361/4492 co-relation queries the response was YES. [2021-08-13 05:52:37,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8528 conditions, 2346 events. 900/2346 cut-off events. For 361/4492 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 19996 event pairs, 5 based on Foata normal form. 48/2370 useless extension candidates. Maximal degree in co-relation 8477. Up to 613 conditions per place. [2021-08-13 05:52:37,344 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 35 selfloop transitions, 21 changer transitions 526/633 dead transitions. [2021-08-13 05:52:37,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 633 transitions, 5931 flow [2021-08-13 05:52:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 05:52:37,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 05:52:37,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 910 transitions. [2021-08-13 05:52:37,348 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8433734939759037 [2021-08-13 05:52:37,348 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 910 transitions. [2021-08-13 05:52:37,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 910 transitions. [2021-08-13 05:52:37,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:37,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 910 transitions. [2021-08-13 05:52:37,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.0) internal successors, (910), 13 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) [2021-08-13 05:52:37,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:37,353 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:37,353 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 44 predicate places. [2021-08-13 05:52:37,356 INFO L482 AbstractCegarLoop]: Abstraction has has 121 places, 633 transitions, 5931 flow [2021-08-13 05:52:37,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2021-08-13 05:52:37,356 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:37,356 INFO L266 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] [2021-08-13 05:52:37,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 05:52:37,357 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:37,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:37,357 INFO L82 PathProgramCache]: Analyzing trace with hash 809279979, now seen corresponding path program 1 times [2021-08-13 05:52:37,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:37,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894606644] [2021-08-13 05:52:37,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:37,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:37,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:37,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:37,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:37,454 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:37,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:37,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:37,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:37,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:37,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:37,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:37,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:37,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:37,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894606644] [2021-08-13 05:52:37,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894606644] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:37,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:37,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 05:52:37,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224294509] [2021-08-13 05:52:37,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 05:52:37,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:37,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 05:52:37,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 05:52:37,496 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 83 [2021-08-13 05:52:37,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 633 transitions, 5931 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2021-08-13 05:52:37,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:37,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 83 [2021-08-13 05:52:37,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:38,016 INFO L129 PetriNetUnfolder]: 1193/2928 cut-off events. [2021-08-13 05:52:38,016 INFO L130 PetriNetUnfolder]: For 1606/4930 co-relation queries the response was YES. [2021-08-13 05:52:38,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12085 conditions, 2928 events. 1193/2928 cut-off events. For 1606/4930 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 25581 event pairs, 0 based on Foata normal form. 12/2924 useless extension candidates. Maximal degree in co-relation 12031. Up to 848 conditions per place. [2021-08-13 05:52:38,032 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 10 selfloop transitions, 10 changer transitions 672/779 dead transitions. [2021-08-13 05:52:38,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 779 transitions, 8103 flow [2021-08-13 05:52:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 05:52:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 05:52:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 659 transitions. [2021-08-13 05:52:38,035 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8821954484605087 [2021-08-13 05:52:38,035 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 659 transitions. [2021-08-13 05:52:38,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 659 transitions. [2021-08-13 05:52:38,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:38,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 659 transitions. [2021-08-13 05:52:38,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.22222222222223) internal successors, (659), 9 states have internal predecessors, (659), 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) [2021-08-13 05:52:38,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2021-08-13 05:52:38,042 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2021-08-13 05:52:38,042 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 52 predicate places. [2021-08-13 05:52:38,042 INFO L482 AbstractCegarLoop]: Abstraction has has 129 places, 779 transitions, 8103 flow [2021-08-13 05:52:38,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2021-08-13 05:52:38,043 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:38,043 INFO L266 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] [2021-08-13 05:52:38,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 05:52:38,044 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:38,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1029975339, now seen corresponding path program 1 times [2021-08-13 05:52:38,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:38,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692004549] [2021-08-13 05:52:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:38,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:38,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:38,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:38,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:38,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:38,132 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 05:52:38,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 05:52:38,147 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:38,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:38,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:38,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:38,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:38,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:38,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:38,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:38,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:38,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692004549] [2021-08-13 05:52:38,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692004549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:38,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:38,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 05:52:38,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946206261] [2021-08-13 05:52:38,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 05:52:38,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:38,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 05:52:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 05:52:38,201 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2021-08-13 05:52:38,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 779 transitions, 8103 flow. Second operand has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 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) [2021-08-13 05:52:38,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:38,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2021-08-13 05:52:38,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:39,185 INFO L129 PetriNetUnfolder]: 1480/3833 cut-off events. [2021-08-13 05:52:39,185 INFO L130 PetriNetUnfolder]: For 2096/14472 co-relation queries the response was YES. [2021-08-13 05:52:39,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18239 conditions, 3833 events. 1480/3833 cut-off events. For 2096/14472 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 36726 event pairs, 0 based on Foata normal form. 102/3915 useless extension candidates. Maximal degree in co-relation 18179. Up to 1070 conditions per place. [2021-08-13 05:52:39,210 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 30 selfloop transitions, 20 changer transitions 899/1000 dead transitions. [2021-08-13 05:52:39,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 1000 transitions, 12359 flow [2021-08-13 05:52:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-13 05:52:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-08-13 05:52:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1454 transitions. [2021-08-13 05:52:39,214 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8341939185312679 [2021-08-13 05:52:39,214 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1454 transitions. [2021-08-13 05:52:39,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1454 transitions. [2021-08-13 05:52:39,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:39,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1454 transitions. [2021-08-13 05:52:39,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 69.23809523809524) internal successors, (1454), 21 states have internal predecessors, (1454), 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) [2021-08-13 05:52:39,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 83.0) internal successors, (1826), 22 states have internal predecessors, (1826), 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) [2021-08-13 05:52:39,282 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 83.0) internal successors, (1826), 22 states have internal predecessors, (1826), 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) [2021-08-13 05:52:39,282 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 72 predicate places. [2021-08-13 05:52:39,282 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 1000 transitions, 12359 flow [2021-08-13 05:52:39,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 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) [2021-08-13 05:52:39,282 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:39,282 INFO L266 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] [2021-08-13 05:52:39,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 05:52:39,283 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:39,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:39,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1755727225, now seen corresponding path program 2 times [2021-08-13 05:52:39,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:39,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872507190] [2021-08-13 05:52:39,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:39,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:39,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:39,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:39,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:39,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:39,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:39,327 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 05:52:39,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 05:52:39,338 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:52:39,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:52:39,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:39,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:39,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:39,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:39,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:39,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:39,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:39,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872507190] [2021-08-13 05:52:39,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872507190] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:39,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:39,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 05:52:39,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471349775] [2021-08-13 05:52:39,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 05:52:39,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:39,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 05:52:39,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 05:52:39,381 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2021-08-13 05:52:39,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 1000 transitions, 12359 flow. Second operand has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 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) [2021-08-13 05:52:39,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:39,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2021-08-13 05:52:39,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:40,379 INFO L129 PetriNetUnfolder]: 1585/4072 cut-off events. [2021-08-13 05:52:40,379 INFO L130 PetriNetUnfolder]: For 2582/20018 co-relation queries the response was YES. [2021-08-13 05:52:40,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22659 conditions, 4072 events. 1585/4072 cut-off events. For 2582/20018 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 39250 event pairs, 1 based on Foata normal form. 87/4139 useless extension candidates. Maximal degree in co-relation 22593. Up to 1175 conditions per place. [2021-08-13 05:52:40,405 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 25 selfloop transitions, 12 changer transitions 1102/1190 dead transitions. [2021-08-13 05:52:40,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 1190 transitions, 16995 flow [2021-08-13 05:52:40,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 05:52:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 05:52:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1173 transitions. [2021-08-13 05:52:40,409 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8313253012048193 [2021-08-13 05:52:40,409 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1173 transitions. [2021-08-13 05:52:40,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1173 transitions. [2021-08-13 05:52:40,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:40,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1173 transitions. [2021-08-13 05:52:40,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.0) internal successors, (1173), 17 states have internal predecessors, (1173), 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) [2021-08-13 05:52:40,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 83.0) internal successors, (1494), 18 states have internal predecessors, (1494), 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) [2021-08-13 05:52:40,416 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 83.0) internal successors, (1494), 18 states have internal predecessors, (1494), 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) [2021-08-13 05:52:40,416 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 88 predicate places. [2021-08-13 05:52:40,416 INFO L482 AbstractCegarLoop]: Abstraction has has 165 places, 1190 transitions, 16995 flow [2021-08-13 05:52:40,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 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) [2021-08-13 05:52:40,417 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:40,417 INFO L266 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] [2021-08-13 05:52:40,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 05:52:40,417 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash 799776452, now seen corresponding path program 1 times [2021-08-13 05:52:40,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:40,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149742491] [2021-08-13 05:52:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:40,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:40,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:40,486 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 05:52:40,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 05:52:40,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:40,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 05:52:40,515 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 05:52:40,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:40,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:40,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:40,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:40,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149742491] [2021-08-13 05:52:40,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149742491] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:40,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:40,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 05:52:40,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539266685] [2021-08-13 05:52:40,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 05:52:40,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:40,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 05:52:40,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 05:52:40,528 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 83 [2021-08-13 05:52:40,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 1190 transitions, 16995 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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) [2021-08-13 05:52:40,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:40,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 83 [2021-08-13 05:52:40,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:41,631 INFO L129 PetriNetUnfolder]: 1812/4708 cut-off events. [2021-08-13 05:52:41,631 INFO L130 PetriNetUnfolder]: For 3336/4452 co-relation queries the response was YES. [2021-08-13 05:52:41,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18702 conditions, 4708 events. 1812/4708 cut-off events. For 3336/4452 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 47226 event pairs, 39 based on Foata normal form. 37/4425 useless extension candidates. Maximal degree in co-relation 18633. Up to 1015 conditions per place. [2021-08-13 05:52:41,678 INFO L132 encePairwiseOnDemand]: 73/83 looper letters, 24 selfloop transitions, 17 changer transitions 501/688 dead transitions. [2021-08-13 05:52:41,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 688 transitions, 9261 flow [2021-08-13 05:52:41,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 05:52:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 05:52:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 733 transitions. [2021-08-13 05:52:41,682 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8831325301204819 [2021-08-13 05:52:41,682 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 733 transitions. [2021-08-13 05:52:41,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 733 transitions. [2021-08-13 05:52:41,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:41,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 733 transitions. [2021-08-13 05:52:41,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.3) internal successors, (733), 10 states have internal predecessors, (733), 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) [2021-08-13 05:52:41,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 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) [2021-08-13 05:52:41,687 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 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) [2021-08-13 05:52:41,687 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 97 predicate places. [2021-08-13 05:52:41,687 INFO L482 AbstractCegarLoop]: Abstraction has has 174 places, 688 transitions, 9261 flow [2021-08-13 05:52:41,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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) [2021-08-13 05:52:41,688 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:41,688 INFO L266 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] [2021-08-13 05:52:41,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 05:52:41,688 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:41,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:41,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1672669371, now seen corresponding path program 1 times [2021-08-13 05:52:41,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:41,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928663070] [2021-08-13 05:52:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:41,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:41,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:41,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:41,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:41,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:41,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:41,840 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 05:52:41,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 05:52:41,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:41,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 05:52:41,866 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 05:52:41,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:41,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:41,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:41,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:41,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928663070] [2021-08-13 05:52:41,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928663070] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:41,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:41,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:52:41,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120418061] [2021-08-13 05:52:41,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:52:41,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:41,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:52:41,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:52:41,883 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 83 [2021-08-13 05:52:41,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 688 transitions, 9261 flow. Second operand has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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) [2021-08-13 05:52:41,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:41,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 83 [2021-08-13 05:52:41,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:42,482 INFO L129 PetriNetUnfolder]: 1091/3034 cut-off events. [2021-08-13 05:52:42,482 INFO L130 PetriNetUnfolder]: For 1605/3739 co-relation queries the response was YES. [2021-08-13 05:52:42,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9853 conditions, 3034 events. 1091/3034 cut-off events. For 1605/3739 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 30148 event pairs, 0 based on Foata normal form. 347/3158 useless extension candidates. Maximal degree in co-relation 9781. Up to 824 conditions per place. [2021-08-13 05:52:42,508 INFO L132 encePairwiseOnDemand]: 73/83 looper letters, 18 selfloop transitions, 44 changer transitions 208/347 dead transitions. [2021-08-13 05:52:42,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 347 transitions, 3877 flow [2021-08-13 05:52:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 05:52:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 05:52:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 954 transitions. [2021-08-13 05:52:42,511 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8841519925857275 [2021-08-13 05:52:42,512 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 954 transitions. [2021-08-13 05:52:42,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 954 transitions. [2021-08-13 05:52:42,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:42,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 954 transitions. [2021-08-13 05:52:42,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.38461538461539) internal successors, (954), 13 states have internal predecessors, (954), 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) [2021-08-13 05:52:42,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:42,520 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 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) [2021-08-13 05:52:42,520 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 106 predicate places. [2021-08-13 05:52:42,520 INFO L482 AbstractCegarLoop]: Abstraction has has 183 places, 347 transitions, 3877 flow [2021-08-13 05:52:42,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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) [2021-08-13 05:52:42,520 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:52:42,520 INFO L266 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] [2021-08-13 05:52:42,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 05:52:42,521 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:52:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:52:42,521 INFO L82 PathProgramCache]: Analyzing trace with hash 988019022, now seen corresponding path program 1 times [2021-08-13 05:52:42,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:52:42,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109699226] [2021-08-13 05:52:42,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:52:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:52:42,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:42,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:42,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:42,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:42,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:42,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:42,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:42,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:52:42,595 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 05:52:42,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 05:52:42,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:42,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 05:52:42,628 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 05:52:42,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:52:42,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:52:42,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:52:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:52:42,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:52:42,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109699226] [2021-08-13 05:52:42,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109699226] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:52:42,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:52:42,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 05:52:42,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065715086] [2021-08-13 05:52:42,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 05:52:42,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:52:42,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 05:52:42,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 05:52:42,641 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 83 [2021-08-13 05:52:42,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 347 transitions, 3877 flow. Second operand has 8 states, 8 states have (on average 70.125) internal successors, (561), 8 states have internal predecessors, (561), 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) [2021-08-13 05:52:42,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:52:42,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 83 [2021-08-13 05:52:42,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:52:43,316 INFO L129 PetriNetUnfolder]: 963/2629 cut-off events. [2021-08-13 05:52:43,316 INFO L130 PetriNetUnfolder]: For 1262/4252 co-relation queries the response was YES. [2021-08-13 05:52:43,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9189 conditions, 2629 events. 963/2629 cut-off events. For 1262/4252 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 26476 event pairs, 0 based on Foata normal form. 391/2826 useless extension candidates. Maximal degree in co-relation 9114. Up to 759 conditions per place. [2021-08-13 05:52:43,338 INFO L132 encePairwiseOnDemand]: 73/83 looper letters, 0 selfloop transitions, 0 changer transitions 238/238 dead transitions. [2021-08-13 05:52:43,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 238 transitions, 2275 flow [2021-08-13 05:52:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 05:52:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 05:52:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1160 transitions. [2021-08-13 05:52:43,341 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8734939759036144 [2021-08-13 05:52:43,341 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1160 transitions. [2021-08-13 05:52:43,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1160 transitions. [2021-08-13 05:52:43,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:52:43,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1160 transitions. [2021-08-13 05:52:43,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 72.5) internal successors, (1160), 16 states have internal predecessors, (1160), 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) [2021-08-13 05:52:43,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 83.0) internal successors, (1411), 17 states have internal predecessors, (1411), 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) [2021-08-13 05:52:43,345 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 83.0) internal successors, (1411), 17 states have internal predecessors, (1411), 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) [2021-08-13 05:52:43,346 INFO L348 CegarLoopForPetriNet]: 77 programPoint places, 80 predicate places. [2021-08-13 05:52:43,346 INFO L482 AbstractCegarLoop]: Abstraction has has 157 places, 238 transitions, 2275 flow [2021-08-13 05:52:43,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 70.125) internal successors, (561), 8 states have internal predecessors, (561), 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) [2021-08-13 05:52:43,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown