/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-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 15:57:59,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 15:57:59,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 15:57:59,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 15:57:59,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 15:57:59,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 15:57:59,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 15:57:59,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 15:57:59,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 15:57:59,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 15:57:59,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 15:57:59,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 15:57:59,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 15:57:59,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 15:57:59,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 15:57:59,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 15:57:59,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 15:57:59,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 15:57:59,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 15:57:59,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 15:57:59,623 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-Hitting.epf [2021-08-13 15:57:59,650 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 15:57:59,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 15:57:59,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 15:57:59,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 15:57:59,651 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 15:57:59,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 15:57:59,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 15:57:59,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 15:57:59,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 15:57:59,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 15:57:59,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 15:57:59,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 15:57:59,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 15:57:59,653 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 15:57:59,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 15:57:59,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 15:57:59,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 15:57:59,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 15:57:59,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 15:57:59,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 15:57:59,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 15:57:59,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 15:57:59,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 15:57:59,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 15:57:59,655 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 15:57:59,656 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 15:57:59,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 15:57:59,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 15:57:59,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 15:57:59,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 15:57:59,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 15:57:59,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 15:57:59,974 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 15:57:59,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2021-08-13 15:58:00,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816b6451c/c404b1ae2f32413898782486c03c7a67/FLAG8370daa41 [2021-08-13 15:58:00,670 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 15:58:00,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.opt.i [2021-08-13 15:58:00,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816b6451c/c404b1ae2f32413898782486c03c7a67/FLAG8370daa41 [2021-08-13 15:58:00,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816b6451c/c404b1ae2f32413898782486c03c7a67 [2021-08-13 15:58:00,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 15:58:00,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 15:58:00,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 15:58:00,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 15:58:00,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 15:58:00,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:58:00" (1/1) ... [2021-08-13 15:58:00,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502d2789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:00, skipping insertion in model container [2021-08-13 15:58:00,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:58:00" (1/1) ... [2021-08-13 15:58:00,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 15:58:00,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 15:58:01,128 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/safe012_tso.opt.i[949,962] [2021-08-13 15:58:01,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:58:01,353 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 15:58:01,363 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/safe012_tso.opt.i[949,962] [2021-08-13 15:58:01,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:58:01,464 INFO L208 MainTranslator]: Completed translation [2021-08-13 15:58:01,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01 WrapperNode [2021-08-13 15:58:01,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 15:58:01,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 15:58:01,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 15:58:01,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 15:58:01,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 15:58:01,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 15:58:01,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 15:58:01,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 15:58:01,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (1/1) ... [2021-08-13 15:58:01,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 15:58:01,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 15:58:01,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 15:58:01,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 15:58:01,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (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 15:58:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 15:58:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 15:58:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 15:58:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 15:58:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 15:58:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 15:58:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 15:58:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 15:58:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 15:58:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 15:58:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 15:58:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 15:58:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 15:58:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 15:58:01,592 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 15:58:02,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 15:58:02,046 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 15:58:02,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:58:02 BoogieIcfgContainer [2021-08-13 15:58:02,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 15:58:02,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 15:58:02,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 15:58:02,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 15:58:02,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 03:58:00" (1/3) ... [2021-08-13 15:58:02,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc1ecdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:58:02, skipping insertion in model container [2021-08-13 15:58:02,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:58:01" (2/3) ... [2021-08-13 15:58:02,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc1ecdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:58:02, skipping insertion in model container [2021-08-13 15:58:02,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:58:02" (3/3) ... [2021-08-13 15:58:02,059 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.opt.i [2021-08-13 15:58:02,064 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 15:58:02,064 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 15:58:02,065 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 15:58:02,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,101 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,102 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,102 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:58:02,113 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:58:02,148 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 15:58:02,166 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:58:02,166 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:58:02,166 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:58:02,166 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:58:02,166 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:58:02,166 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:58:02,166 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:58:02,166 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:58:02,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 15:58:02,207 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-08-13 15:58:02,207 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:58:02,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 15:58:02,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 15:58:02,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2021-08-13 15:58:02,228 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-08-13 15:58:02,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:58:02,229 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:02,230 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 15:58:02,230 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:02,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:02,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-08-13 15:58:02,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:02,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128428385] [2021-08-13 15:58:02,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:02,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:02,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:02,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:02,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:02,551 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 15:58:02,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:58:02,565 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:58:02,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:58:02,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:02,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:02,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:02,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:02,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:02,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:02,607 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 15:58:02,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:02,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128428385] [2021-08-13 15:58:02,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128428385] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:02,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:02,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:58:02,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386742170] [2021-08-13 15:58:02,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:58:02,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:02,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:58:02,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:58:02,640 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 85 [2021-08-13 15:58:02,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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 15:58:02,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:02,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 85 [2021-08-13 15:58:02,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:02,867 INFO L129 PetriNetUnfolder]: 46/195 cut-off events. [2021-08-13 15:58:02,868 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:58:02,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 195 events. 46/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 674 event pairs, 21 based on Foata normal form. 8/197 useless extension candidates. Maximal degree in co-relation 271. Up to 47 conditions per place. [2021-08-13 15:58:02,877 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 11 selfloop transitions, 2 changer transitions 19/89 dead transitions. [2021-08-13 15:58:02,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 89 transitions, 251 flow [2021-08-13 15:58:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:58:02,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:58:02,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 657 transitions. [2021-08-13 15:58:02,894 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2021-08-13 15:58:02,894 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 657 transitions. [2021-08-13 15:58:02,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 657 transitions. [2021-08-13 15:58:02,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:02,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 657 transitions. [2021-08-13 15:58:02,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 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 15:58:02,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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 15:58:02,911 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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 15:58:02,911 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2021-08-13 15:58:02,911 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 89 transitions, 251 flow [2021-08-13 15:58:02,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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 15:58:02,912 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:02,912 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 15:58:02,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 15:58:02,913 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:02,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:02,913 INFO L82 PathProgramCache]: Analyzing trace with hash 452026023, now seen corresponding path program 1 times [2021-08-13 15:58:02,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:02,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421732403] [2021-08-13 15:58:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:03,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:03,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:03,039 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 15:58:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:58:03,050 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:58:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:58:03,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:03,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:03,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:03,100 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 15:58:03,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:03,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421732403] [2021-08-13 15:58:03,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421732403] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:03,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:03,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:58:03,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599770445] [2021-08-13 15:58:03,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:58:03,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:03,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:58:03,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:58:03,109 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 15:58:03,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 89 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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 15:58:03,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:03,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 15:58:03,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:03,548 INFO L129 PetriNetUnfolder]: 142/447 cut-off events. [2021-08-13 15:58:03,548 INFO L130 PetriNetUnfolder]: For 52/124 co-relation queries the response was YES. [2021-08-13 15:58:03,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 447 events. 142/447 cut-off events. For 52/124 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2403 event pairs, 5 based on Foata normal form. 10/452 useless extension candidates. Maximal degree in co-relation 936. Up to 106 conditions per place. [2021-08-13 15:58:03,552 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 16 selfloop transitions, 11 changer transitions 125/207 dead transitions. [2021-08-13 15:58:03,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 207 transitions, 1013 flow [2021-08-13 15:58:03,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 15:58:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 15:58:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1222 transitions. [2021-08-13 15:58:03,556 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.845674740484429 [2021-08-13 15:58:03,556 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1222 transitions. [2021-08-13 15:58:03,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1222 transitions. [2021-08-13 15:58:03,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:03,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1222 transitions. [2021-08-13 15:58:03,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.88235294117646) internal successors, (1222), 17 states have internal predecessors, (1222), 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 15:58:03,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 85.0) internal successors, (1530), 18 states have internal predecessors, (1530), 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 15:58:03,565 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 85.0) internal successors, (1530), 18 states have internal predecessors, (1530), 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 15:58:03,566 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2021-08-13 15:58:03,566 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 207 transitions, 1013 flow [2021-08-13 15:58:03,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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 15:58:03,566 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:03,567 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 15:58:03,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 15:58:03,567 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:03,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1841101257, now seen corresponding path program 1 times [2021-08-13 15:58:03,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:03,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062632769] [2021-08-13 15:58:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:03,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:03,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:03,628 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:58:03,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:58:03,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:03,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:03,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:03,664 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 15:58:03,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:03,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062632769] [2021-08-13 15:58:03,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062632769] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:03,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:03,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:58:03,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592519075] [2021-08-13 15:58:03,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:58:03,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:03,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:58:03,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:58:03,667 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 85 [2021-08-13 15:58:03,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 207 transitions, 1013 flow. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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 15:58:03,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:03,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 85 [2021-08-13 15:58:03,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:03,811 INFO L129 PetriNetUnfolder]: 145/458 cut-off events. [2021-08-13 15:58:03,812 INFO L130 PetriNetUnfolder]: For 163/295 co-relation queries the response was YES. [2021-08-13 15:58:03,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 458 events. 145/458 cut-off events. For 163/295 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2516 event pairs, 0 based on Foata normal form. 8/463 useless extension candidates. Maximal degree in co-relation 1122. Up to 116 conditions per place. [2021-08-13 15:58:03,815 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 11 selfloop transitions, 4 changer transitions 157/239 dead transitions. [2021-08-13 15:58:03,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 239 transitions, 1441 flow [2021-08-13 15:58:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:58:03,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:58:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 677 transitions. [2021-08-13 15:58:03,818 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8849673202614379 [2021-08-13 15:58:03,818 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 677 transitions. [2021-08-13 15:58:03,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 677 transitions. [2021-08-13 15:58:03,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:03,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 677 transitions. [2021-08-13 15:58:03,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.22222222222223) internal successors, (677), 9 states have internal predecessors, (677), 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 15:58:03,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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 15:58:03,842 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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 15:58:03,842 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2021-08-13 15:58:03,842 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 239 transitions, 1441 flow [2021-08-13 15:58:03,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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 15:58:03,842 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:03,842 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 15:58:03,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 15:58:03,843 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:03,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:03,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1469088344, now seen corresponding path program 1 times [2021-08-13 15:58:03,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:03,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944407452] [2021-08-13 15:58:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:03,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:03,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:03,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:03,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:03,966 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 15:58:03,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:58:03,976 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:58:03,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:58:03,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:04,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:04,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:04,027 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 15:58:04,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:04,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944407452] [2021-08-13 15:58:04,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944407452] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:04,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:04,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 15:58:04,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251360137] [2021-08-13 15:58:04,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 15:58:04,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:04,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 15:58:04,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 15:58:04,035 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 15:58:04,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 239 transitions, 1441 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:58:04,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:04,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 15:58:04,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:04,281 INFO L129 PetriNetUnfolder]: 146/477 cut-off events. [2021-08-13 15:58:04,282 INFO L130 PetriNetUnfolder]: For 277/821 co-relation queries the response was YES. [2021-08-13 15:58:04,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 477 events. 146/477 cut-off events. For 277/821 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2801 event pairs, 5 based on Foata normal form. 21/494 useless extension candidates. Maximal degree in co-relation 1520. Up to 126 conditions per place. [2021-08-13 15:58:04,286 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 10 selfloop transitions, 4 changer transitions 196/264 dead transitions. [2021-08-13 15:58:04,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 264 transitions, 2015 flow [2021-08-13 15:58:04,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:58:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:58:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 922 transitions. [2021-08-13 15:58:04,289 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8343891402714932 [2021-08-13 15:58:04,289 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 922 transitions. [2021-08-13 15:58:04,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 922 transitions. [2021-08-13 15:58:04,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:04,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 922 transitions. [2021-08-13 15:58:04,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.92307692307692) internal successors, (922), 13 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:58:04,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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 15:58:04,298 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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 15:58:04,298 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-08-13 15:58:04,298 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 264 transitions, 2015 flow [2021-08-13 15:58:04,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 15:58:04,299 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:04,299 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 15:58:04,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 15:58:04,299 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:04,300 INFO L82 PathProgramCache]: Analyzing trace with hash 960145878, now seen corresponding path program 1 times [2021-08-13 15:58:04,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:04,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513004253] [2021-08-13 15:58:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:04,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:04,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:04,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:04,393 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:58:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:58:04,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:04,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:04,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:04,448 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 15:58:04,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:04,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513004253] [2021-08-13 15:58:04,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513004253] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:04,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:04,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:58:04,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895176886] [2021-08-13 15:58:04,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:58:04,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:58:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:58:04,451 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 15:58:04,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 264 transitions, 2015 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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 15:58:04,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:04,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 15:58:04,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:04,835 INFO L129 PetriNetUnfolder]: 513/1272 cut-off events. [2021-08-13 15:58:04,836 INFO L130 PetriNetUnfolder]: For 1335/2906 co-relation queries the response was YES. [2021-08-13 15:58:04,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4718 conditions, 1272 events. 513/1272 cut-off events. For 1335/2906 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9668 event pairs, 13 based on Foata normal form. 12/1279 useless extension candidates. Maximal degree in co-relation 4665. Up to 328 conditions per place. [2021-08-13 15:58:04,844 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 6 selfloop transitions, 4 changer transitions 405/473 dead transitions. [2021-08-13 15:58:04,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 473 transitions, 4757 flow [2021-08-13 15:58:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:58:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:58:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 956 transitions. [2021-08-13 15:58:04,848 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865158371040724 [2021-08-13 15:58:04,848 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 956 transitions. [2021-08-13 15:58:04,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 956 transitions. [2021-08-13 15:58:04,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:04,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 956 transitions. [2021-08-13 15:58:04,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.53846153846153) internal successors, (956), 13 states have internal predecessors, (956), 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 15:58:04,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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 15:58:04,857 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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 15:58:04,857 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 56 predicate places. [2021-08-13 15:58:04,857 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 473 transitions, 4757 flow [2021-08-13 15:58:04,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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 15:58:04,858 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:04,858 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 15:58:04,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 15:58:04,858 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:04,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:04,858 INFO L82 PathProgramCache]: Analyzing trace with hash -980385593, now seen corresponding path program 1 times [2021-08-13 15:58:04,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:04,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610199563] [2021-08-13 15:58:04,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:04,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:04,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:04,944 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:58:04,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:58:04,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:58:04,973 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:58:04,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:04,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:04,983 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 15:58:04,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:04,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610199563] [2021-08-13 15:58:04,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610199563] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:04,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:04,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:58:04,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913338647] [2021-08-13 15:58:04,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:58:04,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:04,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:58:04,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:58:04,987 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 15:58:04,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 473 transitions, 4757 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 15:58:04,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:04,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 15:58:04,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:05,533 INFO L129 PetriNetUnfolder]: 965/2348 cut-off events. [2021-08-13 15:58:05,534 INFO L130 PetriNetUnfolder]: For 1596/2191 co-relation queries the response was YES. [2021-08-13 15:58:05,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7245 conditions, 2348 events. 965/2348 cut-off events. For 1596/2191 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 20441 event pairs, 47 based on Foata normal form. 16/2192 useless extension candidates. Maximal degree in co-relation 7189. Up to 526 conditions per place. [2021-08-13 15:58:05,548 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 10 selfloop transitions, 6 changer transitions 300/394 dead transitions. [2021-08-13 15:58:05,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 394 transitions, 3591 flow [2021-08-13 15:58:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 15:58:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 15:58:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 753 transitions. [2021-08-13 15:58:05,551 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8858823529411765 [2021-08-13 15:58:05,551 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 753 transitions. [2021-08-13 15:58:05,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 753 transitions. [2021-08-13 15:58:05,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:05,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 753 transitions. [2021-08-13 15:58:05,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 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 15:58:05,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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 15:58:05,555 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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 15:58:05,555 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 65 predicate places. [2021-08-13 15:58:05,555 INFO L482 AbstractCegarLoop]: Abstraction has has 144 places, 394 transitions, 3591 flow [2021-08-13 15:58:05,556 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 15:58:05,556 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:05,556 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, 1] [2021-08-13 15:58:05,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 15:58:05,556 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:05,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:05,557 INFO L82 PathProgramCache]: Analyzing trace with hash -309387818, now seen corresponding path program 1 times [2021-08-13 15:58:05,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:05,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676955337] [2021-08-13 15:58:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:05,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:05,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:05,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:05,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:05,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:05,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:05,635 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:58:05,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:58:05,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:05,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:58:05,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:58:05,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:05,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:05,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:05,675 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 15:58:05,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:05,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676955337] [2021-08-13 15:58:05,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676955337] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:05,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:05,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:58:05,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294028146] [2021-08-13 15:58:05,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:58:05,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:05,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:58:05,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:58:05,678 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 15:58:05,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 394 transitions, 3591 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 15:58:05,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:05,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 15:58:05,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:06,170 INFO L129 PetriNetUnfolder]: 623/1561 cut-off events. [2021-08-13 15:58:06,171 INFO L130 PetriNetUnfolder]: For 644/1634 co-relation queries the response was YES. [2021-08-13 15:58:06,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4749 conditions, 1561 events. 623/1561 cut-off events. For 644/1634 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 13081 event pairs, 9 based on Foata normal form. 163/1596 useless extension candidates. Maximal degree in co-relation 4690. Up to 466 conditions per place. [2021-08-13 15:58:06,181 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 10 selfloop transitions, 9 changer transitions 167/244 dead transitions. [2021-08-13 15:58:06,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 244 transitions, 1831 flow [2021-08-13 15:58:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:58:06,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:58:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 980 transitions. [2021-08-13 15:58:06,184 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8868778280542986 [2021-08-13 15:58:06,185 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 980 transitions. [2021-08-13 15:58:06,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 980 transitions. [2021-08-13 15:58:06,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:06,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 980 transitions. [2021-08-13 15:58:06,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.38461538461539) internal successors, (980), 13 states have internal predecessors, (980), 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 15:58:06,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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 15:58:06,190 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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 15:58:06,190 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 71 predicate places. [2021-08-13 15:58:06,190 INFO L482 AbstractCegarLoop]: Abstraction has has 150 places, 244 transitions, 1831 flow [2021-08-13 15:58:06,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 15:58:06,191 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:06,191 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, 1, 1] [2021-08-13 15:58:06,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 15:58:06,193 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:06,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1149032661, now seen corresponding path program 1 times [2021-08-13 15:58:06,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:06,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668346529] [2021-08-13 15:58:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:06,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:06,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:06,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:06,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:06,254 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:58:06,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:58:06,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:58:06,283 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:58:06,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:06,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:06,294 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 15:58:06,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:06,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668346529] [2021-08-13 15:58:06,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668346529] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:06,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:06,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 15:58:06,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475403066] [2021-08-13 15:58:06,296 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 15:58:06,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:06,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 15:58:06,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 15:58:06,297 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 15:58:06,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 244 transitions, 1831 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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 15:58:06,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:06,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 15:58:06,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:06,741 INFO L129 PetriNetUnfolder]: 548/1369 cut-off events. [2021-08-13 15:58:06,742 INFO L130 PetriNetUnfolder]: For 547/2186 co-relation queries the response was YES. [2021-08-13 15:58:06,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4757 conditions, 1369 events. 548/1369 cut-off events. For 547/2186 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 11597 event pairs, 0 based on Foata normal form. 216/1475 useless extension candidates. Maximal degree in co-relation 4695. Up to 441 conditions per place. [2021-08-13 15:58:06,751 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 4 selfloop transitions, 12 changer transitions 118/192 dead transitions. [2021-08-13 15:58:06,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 192 transitions, 1379 flow [2021-08-13 15:58:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 15:58:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 15:58:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1192 transitions. [2021-08-13 15:58:06,754 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8764705882352941 [2021-08-13 15:58:06,754 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1192 transitions. [2021-08-13 15:58:06,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1192 transitions. [2021-08-13 15:58:06,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:06,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1192 transitions. [2021-08-13 15:58:06,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 74.5) internal successors, (1192), 16 states have internal predecessors, (1192), 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 15:58:06,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 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 15:58:06,761 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 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 15:58:06,761 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 56 predicate places. [2021-08-13 15:58:06,761 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 192 transitions, 1379 flow [2021-08-13 15:58:06,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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 15:58:06,762 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:58:06,762 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, 1, 1, 1, 1] [2021-08-13 15:58:06,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 15:58:06,762 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:58:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:58:06,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1379396260, now seen corresponding path program 1 times [2021-08-13 15:58:06,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:58:06,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855554008] [2021-08-13 15:58:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:58:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:58:06,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:06,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:58:06,803 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 15:58:06,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 15:58:06,812 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:58:06,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:58:06,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:06,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:58:06,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:58:06,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:58:06,850 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 15:58:06,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:58:06,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855554008] [2021-08-13 15:58:06,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855554008] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:58:06,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:58:06,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:58:06,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335311049] [2021-08-13 15:58:06,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:58:06,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:58:06,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:58:06,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:58:06,852 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 15:58:06,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 192 transitions, 1379 flow. Second operand has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 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 15:58:06,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:58:06,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 15:58:06,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:58:07,181 INFO L129 PetriNetUnfolder]: 943/2314 cut-off events. [2021-08-13 15:58:07,181 INFO L130 PetriNetUnfolder]: For 1086/1928 co-relation queries the response was YES. [2021-08-13 15:58:07,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8141 conditions, 2314 events. 943/2314 cut-off events. For 1086/1928 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 21739 event pairs, 0 based on Foata normal form. 18/2154 useless extension candidates. Maximal degree in co-relation 8073. Up to 755 conditions per place. [2021-08-13 15:58:07,197 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 0 selfloop transitions, 0 changer transitions 216/216 dead transitions. [2021-08-13 15:58:07,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 216 transitions, 1759 flow [2021-08-13 15:58:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 15:58:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 15:58:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 562 transitions. [2021-08-13 15:58:07,199 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8264705882352941 [2021-08-13 15:58:07,199 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 562 transitions. [2021-08-13 15:58:07,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 562 transitions. [2021-08-13 15:58:07,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:58:07,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 562 transitions. [2021-08-13 15:58:07,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 70.25) internal successors, (562), 8 states have internal predecessors, (562), 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 15:58:07,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 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 15:58:07,203 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 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 15:58:07,203 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 61 predicate places. [2021-08-13 15:58:07,203 INFO L482 AbstractCegarLoop]: Abstraction has has 140 places, 216 transitions, 1759 flow [2021-08-13 15:58:07,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 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 15:58:07,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown