/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-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 10:26:20,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 10:26:20,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 10:26:20,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 10:26:20,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 10:26:20,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 10:26:20,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 10:26:20,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 10:26:20,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 10:26:20,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 10:26:20,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 10:26:20,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 10:26:20,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 10:26:20,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 10:26:20,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 10:26:20,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 10:26:20,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 10:26:20,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 10:26:20,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 10:26:20,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 10:26:20,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 10:26:20,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 10:26:20,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 10:26:20,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 10:26:20,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 10:26:20,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 10:26:20,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 10:26:20,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 10:26:20,527 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-Hitting.epf [2021-08-13 10:26:20,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 10:26:20,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 10:26:20,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 10:26:20,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 10:26:20,559 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 10:26:20,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 10:26:20,559 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 10:26:20,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 10:26:20,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 10:26:20,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 10:26:20,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 10:26:20,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 10:26:20,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 10:26:20,560 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 10:26:20,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 10:26:20,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 10:26:20,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 10:26:20,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 10:26:20,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 10:26:20,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 10:26:20,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 10:26:20,835 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 10:26:20,836 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 10:26:20,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-08-13 10:26:20,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c402752/beaa022d645e460abce70391ad6d99d4/FLAG5a8f3cbc9 [2021-08-13 10:26:21,303 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 10:26:21,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-08-13 10:26:21,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c402752/beaa022d645e460abce70391ad6d99d4/FLAG5a8f3cbc9 [2021-08-13 10:26:21,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c402752/beaa022d645e460abce70391ad6d99d4 [2021-08-13 10:26:21,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 10:26:21,323 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 10:26:21,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 10:26:21,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 10:26:21,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 10:26:21,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee2f9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21, skipping insertion in model container [2021-08-13 10:26:21,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 10:26:21,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 10:26:21,439 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/safe000_pso.oepc.i[950,963] [2021-08-13 10:26:21,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 10:26:21,613 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 10:26:21,622 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/safe000_pso.oepc.i[950,963] [2021-08-13 10:26:21,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 10:26:21,700 INFO L208 MainTranslator]: Completed translation [2021-08-13 10:26:21,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21 WrapperNode [2021-08-13 10:26:21,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 10:26:21,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 10:26:21,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 10:26:21,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 10:26:21,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 10:26:21,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 10:26:21,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 10:26:21,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 10:26:21,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (1/1) ... [2021-08-13 10:26:21,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 10:26:21,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 10:26:21,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 10:26:21,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 10:26:21,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (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 10:26:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 10:26:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 10:26:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 10:26:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 10:26:21,839 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 10:26:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 10:26:21,839 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 10:26:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 10:26:21,839 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 10:26:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 10:26:21,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 10:26:21,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 10:26:21,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 10:26:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 10:26:21,841 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 10:26:22,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 10:26:22,109 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 10:26:22,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 10:26:22 BoogieIcfgContainer [2021-08-13 10:26:22,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 10:26:22,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 10:26:22,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 10:26:22,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 10:26:22,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 10:26:21" (1/3) ... [2021-08-13 10:26:22,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6940f92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 10:26:22, skipping insertion in model container [2021-08-13 10:26:22,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:26:21" (2/3) ... [2021-08-13 10:26:22,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6940f92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 10:26:22, skipping insertion in model container [2021-08-13 10:26:22,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 10:26:22" (3/3) ... [2021-08-13 10:26:22,115 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2021-08-13 10:26:22,118 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 10:26:22,118 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 10:26:22,119 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 10:26:22,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,138 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,138 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,139 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,147 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,147 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 10:26:22,150 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 10:26:22,164 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 10:26:22,176 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 10:26:22,177 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 10:26:22,177 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 10:26:22,177 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 10:26:22,177 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 10:26:22,177 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 10:26:22,177 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 10:26:22,177 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 10:26:22,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 10:26:22,213 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-08-13 10:26:22,213 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 10:26:22,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 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. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 10:26:22,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 10:26:22,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2021-08-13 10:26:22,230 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-08-13 10:26:22,230 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 10:26:22,231 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:26:22,231 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] [2021-08-13 10:26:22,231 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:26:22,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:26:22,235 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-08-13 10:26:22,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:26:22,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485466814] [2021-08-13 10:26:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:26:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:26:22,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:22,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:22,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:22,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:22,497 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 10:26:22,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 10:26:22,519 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:26:22,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:26:22,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:22,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:22,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:22,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:22,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:22,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:22,584 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 10:26:22,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:26:22,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485466814] [2021-08-13 10:26:22,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485466814] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:26:22,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:26:22,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 10:26:22,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300434938] [2021-08-13 10:26:22,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 10:26:22,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:26:22,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 10:26:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 10:26:22,604 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 10:26:22,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 7 states, 7 states have (on average 66.42857142857143) internal successors, (465), 7 states have internal predecessors, (465), 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 10:26:22,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:26:22,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 10:26:22,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:26:22,939 INFO L129 PetriNetUnfolder]: 268/646 cut-off events. [2021-08-13 10:26:22,939 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 10:26:22,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 646 events. 268/646 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3392 event pairs, 2 based on Foata normal form. 29/649 useless extension candidates. Maximal degree in co-relation 1085. Up to 149 conditions per place. [2021-08-13 10:26:22,947 INFO L132 encePairwiseOnDemand]: 72/84 looper letters, 19 selfloop transitions, 7 changer transitions 47/126 dead transitions. [2021-08-13 10:26:22,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 126 transitions, 407 flow [2021-08-13 10:26:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 10:26:22,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 10:26:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 924 transitions. [2021-08-13 10:26:22,963 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2021-08-13 10:26:22,963 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 924 transitions. [2021-08-13 10:26:22,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 924 transitions. [2021-08-13 10:26:22,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:26:22,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 924 transitions. [2021-08-13 10:26:22,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.07692307692308) internal successors, (924), 13 states have internal predecessors, (924), 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 10:26:22,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 10:26:22,976 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 10:26:22,977 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 12 predicate places. [2021-08-13 10:26:22,977 INFO L482 AbstractCegarLoop]: Abstraction has has 90 places, 126 transitions, 407 flow [2021-08-13 10:26:22,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.42857142857143) internal successors, (465), 7 states have internal predecessors, (465), 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 10:26:22,977 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:26:22,977 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 10:26:22,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 10:26:22,978 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:26:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:26:22,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2138163718, now seen corresponding path program 1 times [2021-08-13 10:26:22,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:26:22,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852050277] [2021-08-13 10:26:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:26:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:26:23,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:23,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:23,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:23,050 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:26:23,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:26:23,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:23,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:23,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:23,088 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 10:26:23,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:26:23,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852050277] [2021-08-13 10:26:23,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852050277] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:26:23,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:26:23,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 10:26:23,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567522120] [2021-08-13 10:26:23,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 10:26:23,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:26:23,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 10:26:23,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 10:26:23,091 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 84 [2021-08-13 10:26:23,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 126 transitions, 407 flow. Second operand has 7 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 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 10:26:23,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:26:23,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 84 [2021-08-13 10:26:23,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:26:23,315 INFO L129 PetriNetUnfolder]: 291/798 cut-off events. [2021-08-13 10:26:23,315 INFO L130 PetriNetUnfolder]: For 54/650 co-relation queries the response was YES. [2021-08-13 10:26:23,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 798 events. 291/798 cut-off events. For 54/650 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5042 event pairs, 1 based on Foata normal form. 15/789 useless extension candidates. Maximal degree in co-relation 1785. Up to 154 conditions per place. [2021-08-13 10:26:23,318 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 12 selfloop transitions, 4 changer transitions 165/237 dead transitions. [2021-08-13 10:26:23,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 237 transitions, 1191 flow [2021-08-13 10:26:23,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 10:26:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 10:26:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2021-08-13 10:26:23,320 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8653846153846154 [2021-08-13 10:26:23,320 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 945 transitions. [2021-08-13 10:26:23,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 945 transitions. [2021-08-13 10:26:23,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:26:23,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 945 transitions. [2021-08-13 10:26:23,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.6923076923077) internal successors, (945), 13 states have internal predecessors, (945), 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 10:26:23,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 10:26:23,325 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 10:26:23,325 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 24 predicate places. [2021-08-13 10:26:23,325 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 237 transitions, 1191 flow [2021-08-13 10:26:23,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 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 10:26:23,325 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:26:23,325 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 10:26:23,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 10:26:23,326 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:26:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:26:23,326 INFO L82 PathProgramCache]: Analyzing trace with hash -95792479, now seen corresponding path program 1 times [2021-08-13 10:26:23,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:26:23,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990108785] [2021-08-13 10:26:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:26:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:26:23,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:23,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:23,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:23,393 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 10:26:23,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 10:26:23,404 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:26:23,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:26:23,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:23,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:23,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:23,456 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 10:26:23,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:26:23,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990108785] [2021-08-13 10:26:23,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990108785] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:26:23,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:26:23,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 10:26:23,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160827989] [2021-08-13 10:26:23,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 10:26:23,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:26:23,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 10:26:23,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 10:26:23,459 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2021-08-13 10:26:23,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 237 transitions, 1191 flow. Second operand has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 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 10:26:23,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:26:23,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2021-08-13 10:26:23,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:26:23,819 INFO L129 PetriNetUnfolder]: 617/1600 cut-off events. [2021-08-13 10:26:23,820 INFO L130 PetriNetUnfolder]: For 324/4573 co-relation queries the response was YES. [2021-08-13 10:26:23,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4648 conditions, 1600 events. 617/1600 cut-off events. For 324/4573 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12139 event pairs, 1 based on Foata normal form. 22/1594 useless extension candidates. Maximal degree in co-relation 4603. Up to 266 conditions per place. [2021-08-13 10:26:23,825 INFO L132 encePairwiseOnDemand]: 72/84 looper letters, 10 selfloop transitions, 7 changer transitions 490/557 dead transitions. [2021-08-13 10:26:23,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 557 transitions, 4075 flow [2021-08-13 10:26:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 10:26:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 10:26:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1166 transitions. [2021-08-13 10:26:23,828 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8165266106442577 [2021-08-13 10:26:23,828 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1166 transitions. [2021-08-13 10:26:23,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1166 transitions. [2021-08-13 10:26:23,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:26:23,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1166 transitions. [2021-08-13 10:26:23,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 68.58823529411765) internal successors, (1166), 17 states have internal predecessors, (1166), 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 10:26:23,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 10:26:23,833 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 10:26:23,833 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 40 predicate places. [2021-08-13 10:26:23,833 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 557 transitions, 4075 flow [2021-08-13 10:26:23,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 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 10:26:23,833 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 10:26:23,833 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 10:26:23,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 10:26:23,834 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 10:26:23,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 10:26:23,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1637230774, now seen corresponding path program 1 times [2021-08-13 10:26:23,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 10:26:23,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637653579] [2021-08-13 10:26:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 10:26:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 10:26:23,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:23,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:23,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 10:26:23,887 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 10:26:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 10:26:23,898 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 10:26:23,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 10:26:23,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:23,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 10:26:23,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 10:26:23,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 10:26:23,931 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 10:26:23,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 10:26:23,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637653579] [2021-08-13 10:26:23,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637653579] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 10:26:23,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 10:26:23,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 10:26:23,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042713896] [2021-08-13 10:26:23,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 10:26:23,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 10:26:23,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 10:26:23,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 10:26:23,937 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-13 10:26:23,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 557 transitions, 4075 flow. Second operand has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 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 10:26:23,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 10:26:23,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-13 10:26:23,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 10:26:24,428 INFO L129 PetriNetUnfolder]: 783/2149 cut-off events. [2021-08-13 10:26:24,429 INFO L130 PetriNetUnfolder]: For 1118/18761 co-relation queries the response was YES. [2021-08-13 10:26:24,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7456 conditions, 2149 events. 783/2149 cut-off events. For 1118/18761 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 18397 event pairs, 1 based on Foata normal form. 84/2205 useless extension candidates. Maximal degree in co-relation 7405. Up to 365 conditions per place. [2021-08-13 10:26:24,437 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 0 selfloop transitions, 0 changer transitions 794/794 dead transitions. [2021-08-13 10:26:24,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 794 transitions, 7387 flow [2021-08-13 10:26:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 10:26:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 10:26:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1193 transitions. [2021-08-13 10:26:24,440 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8354341736694678 [2021-08-13 10:26:24,442 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1193 transitions. [2021-08-13 10:26:24,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1193 transitions. [2021-08-13 10:26:24,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 10:26:24,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1193 transitions. [2021-08-13 10:26:24,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 70.17647058823529) internal successors, (1193), 17 states have internal predecessors, (1193), 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 10:26:24,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 10:26:24,449 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 10:26:24,449 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 54 predicate places. [2021-08-13 10:26:24,449 INFO L482 AbstractCegarLoop]: Abstraction has has 132 places, 794 transitions, 7387 flow [2021-08-13 10:26:24,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 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 10:26:24,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown