/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:36:48,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:36:48,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:36:48,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:36:48,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:36:48,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:36:48,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:36:48,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:36:48,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:36:48,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:36:48,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:36:48,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:36:48,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:36:48,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:36:48,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:36:48,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:36:48,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:36:48,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:36:48,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:36:48,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:36:48,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:36:48,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:36:48,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:36:48,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:36:48,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 04:36:48,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:36:48,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:36:48,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:36:48,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:36:48,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:36:48,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:36:48,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:36:48,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:36:48,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:36:48,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:36:48,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:36:48,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 04:36:48,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:36:48,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:36:48,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:36:48,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:36:48,605 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:36:48,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:36:48,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:36:48,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:36:48,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:36:48,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:36:48,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:36:48,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:36:48,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:36:48,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:36:48,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:36:48,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:36:48,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:36:48,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:36:48,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:36:48,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:36:48,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:36:48,952 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 04:36:48,952 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 04:36:48,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2021-03-11 04:36:48,966 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2021-03-11 04:36:49,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:36:49,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 04:36:49,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:36:49,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:36:49,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:36:49,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:36:49,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:36:49,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:36:49,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:36:49,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... [2021-03-11 04:36:49,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:36:49,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:36:49,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:36:49,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:36:49,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:36:49,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 04:36:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 04:36:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 04:36:49,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 04:36:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 04:36:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 04:36:49,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 04:36:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 04:36:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 04:36:49,129 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 04:36:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 04:36:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 04:36:49,129 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 04:36:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 04:36:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 04:36:49,129 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 04:36:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 04:36:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 04:36:49,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 04:36:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:36:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:36:49,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 04:36:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 04:36:49,132 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 04:36:49,132 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 04:36:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 04:36:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 04:36:49,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 04:36:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 04:36:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 04:36:49,134 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 04:36:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 04:36:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 04:36:49,135 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:36:49,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:36:49,337 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 04:36:49,338 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:36:49 BoogieIcfgContainer [2021-03-11 04:36:49,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:36:49,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:36:49,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:36:49,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:36:49,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:36:49" (1/2) ... [2021-03-11 04:36:49,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8a15ad and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:36:49, skipping insertion in model container [2021-03-11 04:36:49,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:36:49" (2/2) ... [2021-03-11 04:36:49,360 INFO L111 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2021-03-11 04:36:49,365 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:36:49,368 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:36:49,369 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:36:49,543 INFO L149 ThreadInstanceAdder]: Constructed 100 joinOtherThreadTransitions. [2021-03-11 04:36:49,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-03-11 04:36:49,576 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:36:49,576 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:36:49,576 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:36:49,576 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:36:49,576 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:36:49,577 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:36:49,577 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:36:49,577 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:36:49,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 143 transitions, 636 flow [2021-03-11 04:36:50,162 INFO L129 PetriNetUnfolder]: 4097/5153 cut-off events. [2021-03-11 04:36:50,162 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-03-11 04:36:50,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10304 conditions, 5153 events. 4097/5153 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20936 event pairs, 0 based on Foata normal form. 0/5152 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2021-03-11 04:36:50,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 143 transitions, 636 flow [2021-03-11 04:36:50,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 131 transitions, 592 flow [2021-03-11 04:36:50,633 INFO L129 PetriNetUnfolder]: 4097/5150 cut-off events. [2021-03-11 04:36:50,634 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-03-11 04:36:50,634 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:50,635 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:50,636 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:50,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1822784707, now seen corresponding path program 1 times [2021-03-11 04:36:50,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:50,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294642532] [2021-03-11 04:36:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:50,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:50,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:50,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:50,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:50,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:50,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294642532] [2021-03-11 04:36:50,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:50,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:50,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601522317] [2021-03-11 04:36:50,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:50,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:50,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:50,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:50,883 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:50,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 131 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:50,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:50,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:50,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:51,371 INFO L129 PetriNetUnfolder]: 3764/4772 cut-off events. [2021-03-11 04:36:51,371 INFO L130 PetriNetUnfolder]: For 5812/5812 co-relation queries the response was YES. [2021-03-11 04:36:51,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10012 conditions, 4772 events. 3764/4772 cut-off events. For 5812/5812 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 21578 event pairs, 0 based on Foata normal form. 46/4818 useless extension candidates. Maximal degree in co-relation 4728. Up to 1260 conditions per place. [2021-03-11 04:36:51,417 INFO L132 encePairwiseOnDemand]: 139/143 looper letters, 7 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2021-03-11 04:36:51,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 128 transitions, 593 flow [2021-03-11 04:36:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:51,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-11 04:36:51,435 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-11 04:36:51,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-11 04:36:51,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-11 04:36:51,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:51,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-11 04:36:51,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,456 INFO L185 Difference]: Start difference. First operand has 72 places, 131 transitions, 592 flow. Second operand 3 states and 407 transitions. [2021-03-11 04:36:51,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 128 transitions, 593 flow [2021-03-11 04:36:51,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 128 transitions, 379 flow, removed 0 selfloop flow, removed 20 redundant places. [2021-03-11 04:36:51,507 INFO L241 Difference]: Finished difference. Result has 54 places, 128 transitions, 365 flow [2021-03-11 04:36:51,509 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=54, PETRI_TRANSITIONS=128} [2021-03-11 04:36:51,509 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2021-03-11 04:36:51,509 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 128 transitions, 365 flow [2021-03-11 04:36:51,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,510 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:51,510 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:51,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:36:51,510 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:51,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:51,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1398315923, now seen corresponding path program 1 times [2021-03-11 04:36:51,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:51,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100782088] [2021-03-11 04:36:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:51,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:51,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:51,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:51,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:51,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:51,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:51,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100782088] [2021-03-11 04:36:51,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:51,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:51,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625564995] [2021-03-11 04:36:51,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:51,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:51,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:51,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:51,572 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:51,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 128 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:51,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:51,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:51,834 INFO L129 PetriNetUnfolder]: 3028/3915 cut-off events. [2021-03-11 04:36:51,834 INFO L130 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2021-03-11 04:36:51,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 3915 events. 3028/3915 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 18351 event pairs, 0 based on Foata normal form. 93/4008 useless extension candidates. Maximal degree in co-relation 4300. Up to 1260 conditions per place. [2021-03-11 04:36:51,861 INFO L132 encePairwiseOnDemand]: 138/143 looper letters, 6 selfloop transitions, 1 changer transitions 0/124 dead transitions. [2021-03-11 04:36:51,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 124 transitions, 367 flow [2021-03-11 04:36:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:51,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-11 04:36:51,868 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-11 04:36:51,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-11 04:36:51,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-11 04:36:51,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:51,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-11 04:36:51,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,872 INFO L185 Difference]: Start difference. First operand has 54 places, 128 transitions, 365 flow. Second operand 3 states and 407 transitions. [2021-03-11 04:36:51,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 124 transitions, 367 flow [2021-03-11 04:36:51,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 124 transitions, 366 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:51,877 INFO L241 Difference]: Finished difference. Result has 55 places, 124 transitions, 354 flow [2021-03-11 04:36:51,877 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=55, PETRI_TRANSITIONS=124} [2021-03-11 04:36:51,878 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -17 predicate places. [2021-03-11 04:36:51,878 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 124 transitions, 354 flow [2021-03-11 04:36:51,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,878 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:51,879 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:51,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 04:36:51,879 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:51,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2031893425, now seen corresponding path program 1 times [2021-03-11 04:36:51,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:51,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042040650] [2021-03-11 04:36:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:51,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:51,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:51,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:51,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:51,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:51,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:51,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:51,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042040650] [2021-03-11 04:36:51,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:51,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:51,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597808737] [2021-03-11 04:36:51,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:51,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:51,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:51,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:51,922 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:51,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 124 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:51,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:51,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:51,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,030 INFO L129 PetriNetUnfolder]: 1208/1674 cut-off events. [2021-03-11 04:36:52,030 INFO L130 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2021-03-11 04:36:52,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1674 events. 1208/1674 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7577 event pairs, 0 based on Foata normal form. 344/2018 useless extension candidates. Maximal degree in co-relation 1724. Up to 504 conditions per place. [2021-03-11 04:36:52,043 INFO L132 encePairwiseOnDemand]: 135/143 looper letters, 3 selfloop transitions, 1 changer transitions 0/117 dead transitions. [2021-03-11 04:36:52,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 117 transitions, 341 flow [2021-03-11 04:36:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-11 04:36:52,045 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-11 04:36:52,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,047 INFO L185 Difference]: Start difference. First operand has 55 places, 124 transitions, 354 flow. Second operand 3 states and 407 transitions. [2021-03-11 04:36:52,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 117 transitions, 341 flow [2021-03-11 04:36:52,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,052 INFO L241 Difference]: Finished difference. Result has 56 places, 117 transitions, 334 flow [2021-03-11 04:36:52,053 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=56, PETRI_TRANSITIONS=117} [2021-03-11 04:36:52,053 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2021-03-11 04:36:52,053 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 117 transitions, 334 flow [2021-03-11 04:36:52,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,054 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,054 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 04:36:52,054 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1486479631, now seen corresponding path program 1 times [2021-03-11 04:36:52,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284943665] [2021-03-11 04:36:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:52,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:52,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284943665] [2021-03-11 04:36:52,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:52,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:52,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116791209] [2021-03-11 04:36:52,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:52,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:52,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:52,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:52,080 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:52,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 117 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:52,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:52,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,140 INFO L129 PetriNetUnfolder]: 524/807 cut-off events. [2021-03-11 04:36:52,140 INFO L130 PetriNetUnfolder]: For 179/179 co-relation queries the response was YES. [2021-03-11 04:36:52,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 807 events. 524/807 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3388 event pairs, 0 based on Foata normal form. 133/940 useless extension candidates. Maximal degree in co-relation 858. Up to 168 conditions per place. [2021-03-11 04:36:52,145 INFO L132 encePairwiseOnDemand]: 136/143 looper letters, 4 selfloop transitions, 1 changer transitions 0/111 dead transitions. [2021-03-11 04:36:52,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 111 transitions, 326 flow [2021-03-11 04:36:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-11 04:36:52,147 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-11 04:36:52,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,150 INFO L185 Difference]: Start difference. First operand has 56 places, 117 transitions, 334 flow. Second operand 3 states and 407 transitions. [2021-03-11 04:36:52,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 111 transitions, 326 flow [2021-03-11 04:36:52,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 111 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,152 INFO L241 Difference]: Finished difference. Result has 57 places, 111 transitions, 317 flow [2021-03-11 04:36:52,153 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=57, PETRI_TRANSITIONS=111} [2021-03-11 04:36:52,153 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2021-03-11 04:36:52,153 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 111 transitions, 317 flow [2021-03-11 04:36:52,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,154 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 04:36:52,154 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1397751435, now seen corresponding path program 1 times [2021-03-11 04:36:52,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374950853] [2021-03-11 04:36:52,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:52,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:52,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374950853] [2021-03-11 04:36:52,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:52,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:52,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883983632] [2021-03-11 04:36:52,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:52,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:52,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:52,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:52,179 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:52,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 111 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:52,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:52,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,244 INFO L129 PetriNetUnfolder]: 499/776 cut-off events. [2021-03-11 04:36:52,244 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-11 04:36:52,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 776 events. 499/776 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3392 event pairs, 0 based on Foata normal form. 6/782 useless extension candidates. Maximal degree in co-relation 862. Up to 168 conditions per place. [2021-03-11 04:36:52,250 INFO L132 encePairwiseOnDemand]: 140/143 looper letters, 8 selfloop transitions, 1 changer transitions 0/109 dead transitions. [2021-03-11 04:36:52,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 109 transitions, 329 flow [2021-03-11 04:36:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-11 04:36:52,252 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-11 04:36:52,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,255 INFO L185 Difference]: Start difference. First operand has 57 places, 111 transitions, 317 flow. Second operand 3 states and 407 transitions. [2021-03-11 04:36:52,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 109 transitions, 329 flow [2021-03-11 04:36:52,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 109 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,258 INFO L241 Difference]: Finished difference. Result has 58 places, 109 transitions, 312 flow [2021-03-11 04:36:52,258 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=58, PETRI_TRANSITIONS=109} [2021-03-11 04:36:52,258 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2021-03-11 04:36:52,258 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 109 transitions, 312 flow [2021-03-11 04:36:52,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,259 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,259 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 04:36:52,259 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2079472437, now seen corresponding path program 1 times [2021-03-11 04:36:52,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977179665] [2021-03-11 04:36:52,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:52,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:52,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977179665] [2021-03-11 04:36:52,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:52,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:52,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109271231] [2021-03-11 04:36:52,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:52,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:52,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:52,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:52,303 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:52,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 109 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:52,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:52,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,330 INFO L129 PetriNetUnfolder]: 109/222 cut-off events. [2021-03-11 04:36:52,330 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-03-11 04:36:52,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 222 events. 109/222 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 783 event pairs, 0 based on Foata normal form. 81/303 useless extension candidates. Maximal degree in co-relation 232. Up to 45 conditions per place. [2021-03-11 04:36:52,332 INFO L132 encePairwiseOnDemand]: 133/143 looper letters, 1 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2021-03-11 04:36:52,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 91 transitions, 262 flow [2021-03-11 04:36:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-03-11 04:36:52,337 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-11 04:36:52,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-03-11 04:36:52,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,340 INFO L185 Difference]: Start difference. First operand has 58 places, 109 transitions, 312 flow. Second operand 3 states and 407 transitions. [2021-03-11 04:36:52,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 91 transitions, 262 flow [2021-03-11 04:36:52,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,342 INFO L241 Difference]: Finished difference. Result has 59 places, 91 transitions, 259 flow [2021-03-11 04:36:52,342 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=59, PETRI_TRANSITIONS=91} [2021-03-11 04:36:52,342 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2021-03-11 04:36:52,342 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 91 transitions, 259 flow [2021-03-11 04:36:52,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,343 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,343 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 04:36:52,344 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1575851113, now seen corresponding path program 1 times [2021-03-11 04:36:52,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905174254] [2021-03-11 04:36:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:52,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:52,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905174254] [2021-03-11 04:36:52,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:52,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:52,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378293224] [2021-03-11 04:36:52,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:52,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:52,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:52,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:52,393 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:52,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 91 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:52,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:52,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,430 INFO L129 PetriNetUnfolder]: 106/218 cut-off events. [2021-03-11 04:36:52,430 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-03-11 04:36:52,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 218 events. 106/218 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 759 event pairs, 0 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 251. Up to 45 conditions per place. [2021-03-11 04:36:52,432 INFO L132 encePairwiseOnDemand]: 141/143 looper letters, 8 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2021-03-11 04:36:52,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 90 transitions, 274 flow [2021-03-11 04:36:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2021-03-11 04:36:52,434 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9463869463869464 [2021-03-11 04:36:52,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2021-03-11 04:36:52,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2021-03-11 04:36:52,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2021-03-11 04:36:52,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,437 INFO L185 Difference]: Start difference. First operand has 59 places, 91 transitions, 259 flow. Second operand 3 states and 406 transitions. [2021-03-11 04:36:52,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 90 transitions, 274 flow [2021-03-11 04:36:52,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,441 INFO L241 Difference]: Finished difference. Result has 60 places, 90 transitions, 257 flow [2021-03-11 04:36:52,441 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=60, PETRI_TRANSITIONS=90} [2021-03-11 04:36:52,441 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2021-03-11 04:36:52,441 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 90 transitions, 257 flow [2021-03-11 04:36:52,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,442 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,442 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 04:36:52,442 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,443 INFO L82 PathProgramCache]: Analyzing trace with hash 729913269, now seen corresponding path program 1 times [2021-03-11 04:36:52,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394234673] [2021-03-11 04:36:52,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:52,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:52,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394234673] [2021-03-11 04:36:52,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:52,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:52,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149685839] [2021-03-11 04:36:52,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:52,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:52,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:52,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:52,482 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:52,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 90 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:52,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:52,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,500 INFO L129 PetriNetUnfolder]: 15/71 cut-off events. [2021-03-11 04:36:52,501 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-03-11 04:36:52,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 71 events. 15/71 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 147 event pairs, 0 based on Foata normal form. 23/94 useless extension candidates. Maximal degree in co-relation 85. Up to 10 conditions per place. [2021-03-11 04:36:52,501 INFO L132 encePairwiseOnDemand]: 134/143 looper letters, 1 selfloop transitions, 1 changer transitions 0/61 dead transitions. [2021-03-11 04:36:52,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 174 flow [2021-03-11 04:36:52,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2021-03-11 04:36:52,503 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9463869463869464 [2021-03-11 04:36:52,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2021-03-11 04:36:52,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2021-03-11 04:36:52,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2021-03-11 04:36:52,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,506 INFO L185 Difference]: Start difference. First operand has 60 places, 90 transitions, 257 flow. Second operand 3 states and 406 transitions. [2021-03-11 04:36:52,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 174 flow [2021-03-11 04:36:52,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,508 INFO L241 Difference]: Finished difference. Result has 61 places, 61 transitions, 171 flow [2021-03-11 04:36:52,508 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2021-03-11 04:36:52,508 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -11 predicate places. [2021-03-11 04:36:52,508 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 171 flow [2021-03-11 04:36:52,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,508 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,509 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 04:36:52,509 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,509 INFO L82 PathProgramCache]: Analyzing trace with hash 905698955, now seen corresponding path program 1 times [2021-03-11 04:36:52,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407229198] [2021-03-11 04:36:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:36:52,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:52,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407229198] [2021-03-11 04:36:52,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:52,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:36:52,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803225388] [2021-03-11 04:36:52,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:36:52,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:52,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:36:52,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:36:52,547 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 143 [2021-03-11 04:36:52,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:52,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 143 [2021-03-11 04:36:52,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:52,557 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-11 04:36:52,557 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-11 04:36:52,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 41 events. 0/41 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 5/46 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 04:36:52,559 INFO L132 encePairwiseOnDemand]: 137/143 looper letters, 1 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2021-03-11 04:36:52,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 41 transitions, 115 flow [2021-03-11 04:36:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:36:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:36:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2021-03-11 04:36:52,561 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2021-03-11 04:36:52,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2021-03-11 04:36:52,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2021-03-11 04:36:52,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:52,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2021-03-11 04:36:52,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,563 INFO L185 Difference]: Start difference. First operand has 61 places, 61 transitions, 171 flow. Second operand 3 states and 403 transitions. [2021-03-11 04:36:52,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 41 transitions, 115 flow [2021-03-11 04:36:52,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 41 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:52,565 INFO L241 Difference]: Finished difference. Result has 62 places, 41 transitions, 112 flow [2021-03-11 04:36:52,565 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2021-03-11 04:36:52,565 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, -10 predicate places. [2021-03-11 04:36:52,565 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 112 flow [2021-03-11 04:36:52,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:52,566 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:52,566 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:52,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 04:36:52,566 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:52,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:52,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1080279285, now seen corresponding path program 1 times [2021-03-11 04:36:52,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:52,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377888263] [2021-03-11 04:36:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:52,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:52,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:52,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:36:52,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 04:36:52,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 04:36:52,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:36:52,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:36:52,749 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 04:36:52,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 04:36:52,797 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 04:36:52,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 04:36:52,854 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 04:36:52,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 04:36:52,908 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 04:36:52,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 04:36:52,979 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 04:36:52,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 04:36:53,038 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:36:53,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:36:53,110 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:36:53,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:36:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:53,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377888263] [2021-03-11 04:36:53,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:53,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:36:53,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234029754] [2021-03-11 04:36:53,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:36:53,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:53,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:36:53,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:36:53,220 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:36:53,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 112 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:53,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:53,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:36:53,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:54,069 INFO L129 PetriNetUnfolder]: 5379/8660 cut-off events. [2021-03-11 04:36:54,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:36:54,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15604 conditions, 8660 events. 5379/8660 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 60160 event pairs, 1793 based on Foata normal form. 1/8431 useless extension candidates. Maximal degree in co-relation 15596. Up to 2561 conditions per place. [2021-03-11 04:36:54,172 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 54 selfloop transitions, 9 changer transitions 1/94 dead transitions. [2021-03-11 04:36:54,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 94 transitions, 346 flow [2021-03-11 04:36:54,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:36:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:36:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:36:54,176 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:36:54,176 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:36:54,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:36:54,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:54,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:36:54,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:54,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:54,183 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:54,183 INFO L185 Difference]: Start difference. First operand has 62 places, 41 transitions, 112 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:36:54,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 94 transitions, 346 flow [2021-03-11 04:36:54,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 94 transitions, 345 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:36:54,186 INFO L241 Difference]: Finished difference. Result has 82 places, 49 transitions, 182 flow [2021-03-11 04:36:54,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=182, PETRI_PLACES=82, PETRI_TRANSITIONS=49} [2021-03-11 04:36:54,186 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2021-03-11 04:36:54,186 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 49 transitions, 182 flow [2021-03-11 04:36:54,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:54,187 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:54,187 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:54,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 04:36:54,188 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash 609128695, now seen corresponding path program 2 times [2021-03-11 04:36:54,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:54,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581711502] [2021-03-11 04:36:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:54,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:54,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:54,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:54,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:36:54,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:54,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:36:54,262 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:36:54,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:36:54,278 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:36:54,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:36:54,300 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:36:54,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:36:54,333 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:36:54,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:36:54,370 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:36:54,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:36:54,421 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 04:36:54,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 04:36:54,476 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 04:36:54,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 04:36:54,537 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:36:54,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:36:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:54,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581711502] [2021-03-11 04:36:54,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:54,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:36:54,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588867064] [2021-03-11 04:36:54,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:36:54,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:54,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:36:54,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:36:54,596 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:36:54,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 49 transitions, 182 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:54,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:54,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:36:54,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:55,976 INFO L129 PetriNetUnfolder]: 7463/14828 cut-off events. [2021-03-11 04:36:55,977 INFO L130 PetriNetUnfolder]: For 11867/11956 co-relation queries the response was YES. [2021-03-11 04:36:56,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35626 conditions, 14828 events. 7463/14828 cut-off events. For 11867/11956 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 139555 event pairs, 1793 based on Foata normal form. 1/14594 useless extension candidates. Maximal degree in co-relation 35608. Up to 4094 conditions per place. [2021-03-11 04:36:56,124 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 68 selfloop transitions, 15 changer transitions 1/114 dead transitions. [2021-03-11 04:36:56,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 114 transitions, 643 flow [2021-03-11 04:36:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:36:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:36:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:36:56,128 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:36:56,128 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:36:56,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:36:56,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:56,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:36:56,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:56,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:56,135 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:56,135 INFO L185 Difference]: Start difference. First operand has 82 places, 49 transitions, 182 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:36:56,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 114 transitions, 643 flow [2021-03-11 04:36:56,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 114 transitions, 615 flow, removed 9 selfloop flow, removed 2 redundant places. [2021-03-11 04:36:56,143 INFO L241 Difference]: Finished difference. Result has 100 places, 61 transitions, 321 flow [2021-03-11 04:36:56,144 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=321, PETRI_PLACES=100, PETRI_TRANSITIONS=61} [2021-03-11 04:36:56,144 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 28 predicate places. [2021-03-11 04:36:56,144 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 61 transitions, 321 flow [2021-03-11 04:36:56,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:56,145 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:56,145 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:56,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 04:36:56,145 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash 12897029, now seen corresponding path program 3 times [2021-03-11 04:36:56,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:56,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333536397] [2021-03-11 04:36:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:56,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:56,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:56,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:56,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:36:56,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:56,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:36:56,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:36:56,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:36:56,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:36:56,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:36:56,448 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:36:56,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:36:56,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:36:56,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:36:56,557 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:36:56,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:36:56,628 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 04:36:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 04:36:56,687 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 04:36:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 04:36:56,755 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:36:56,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:36:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:56,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333536397] [2021-03-11 04:36:56,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:56,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:36:56,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324594309] [2021-03-11 04:36:56,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:36:56,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:56,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:36:56,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:36:56,817 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:36:56,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 61 transitions, 321 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:56,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:56,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:36:56,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:36:59,064 INFO L129 PetriNetUnfolder]: 9822/20671 cut-off events. [2021-03-11 04:36:59,064 INFO L130 PetriNetUnfolder]: For 45867/46342 co-relation queries the response was YES. [2021-03-11 04:36:59,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63962 conditions, 20671 events. 9822/20671 cut-off events. For 45867/46342 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 216314 event pairs, 3106 based on Foata normal form. 1/20429 useless extension candidates. Maximal degree in co-relation 63935. Up to 5277 conditions per place. [2021-03-11 04:36:59,286 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 105 selfloop transitions, 26 changer transitions 3/164 dead transitions. [2021-03-11 04:36:59,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 164 transitions, 1317 flow [2021-03-11 04:36:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:36:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:36:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:36:59,290 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:36:59,290 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:36:59,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:36:59,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:36:59,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:36:59,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:59,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:59,297 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:59,297 INFO L185 Difference]: Start difference. First operand has 100 places, 61 transitions, 321 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:36:59,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 164 transitions, 1317 flow [2021-03-11 04:36:59,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 164 transitions, 1267 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-11 04:36:59,398 INFO L241 Difference]: Finished difference. Result has 118 places, 85 transitions, 651 flow [2021-03-11 04:36:59,398 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=651, PETRI_PLACES=118, PETRI_TRANSITIONS=85} [2021-03-11 04:36:59,398 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 46 predicate places. [2021-03-11 04:36:59,398 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 85 transitions, 651 flow [2021-03-11 04:36:59,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:59,399 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:36:59,399 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:36:59,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 04:36:59,400 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:36:59,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:36:59,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1336730855, now seen corresponding path program 4 times [2021-03-11 04:36:59,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:36:59,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603667541] [2021-03-11 04:36:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:36:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:36:59,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:59,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:36:59,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:36:59,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:36:59,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:36:59,582 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:36:59,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:36:59,598 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:36:59,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:36:59,617 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:36:59,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:36:59,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:36:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:36:59,678 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 04:36:59,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 04:36:59,720 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 04:36:59,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 04:36:59,764 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 04:36:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 04:36:59,826 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:36:59,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:36:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:36:59,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603667541] [2021-03-11 04:36:59,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:36:59,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:36:59,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721769506] [2021-03-11 04:36:59,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:36:59,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:36:59,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:36:59,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:36:59,879 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:36:59,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 85 transitions, 651 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:36:59,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:36:59,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:36:59,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:37:03,211 INFO L129 PetriNetUnfolder]: 13056/29706 cut-off events. [2021-03-11 04:37:03,211 INFO L130 PetriNetUnfolder]: For 129153/129770 co-relation queries the response was YES. [2021-03-11 04:37:03,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109195 conditions, 29706 events. 13056/29706 cut-off events. For 129153/129770 co-relation queries the response was YES. Maximal size of possible extension queue 2796. Compared 353465 event pairs, 4107 based on Foata normal form. 1/29390 useless extension candidates. Maximal degree in co-relation 109159. Up to 7452 conditions per place. [2021-03-11 04:37:03,623 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 142 selfloop transitions, 49 changer transitions 2/223 dead transitions. [2021-03-11 04:37:03,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 223 transitions, 2362 flow [2021-03-11 04:37:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:37:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:37:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:37:03,627 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:37:03,627 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:37:03,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:37:03,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:37:03,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:37:03,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:03,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:03,635 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:03,635 INFO L185 Difference]: Start difference. First operand has 118 places, 85 transitions, 651 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:37:03,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 223 transitions, 2362 flow [2021-03-11 04:37:03,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 223 transitions, 2306 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-03-11 04:37:03,822 INFO L241 Difference]: Finished difference. Result has 135 places, 129 transitions, 1395 flow [2021-03-11 04:37:03,822 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1395, PETRI_PLACES=135, PETRI_TRANSITIONS=129} [2021-03-11 04:37:03,823 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 63 predicate places. [2021-03-11 04:37:03,823 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 129 transitions, 1395 flow [2021-03-11 04:37:03,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:03,823 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:37:03,823 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:37:03,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 04:37:03,824 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:37:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:37:03,824 INFO L82 PathProgramCache]: Analyzing trace with hash 897112465, now seen corresponding path program 5 times [2021-03-11 04:37:03,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:37:03,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278175138] [2021-03-11 04:37:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:37:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:37:03,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:03,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:37:03,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:03,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:37:03,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:03,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:37:03,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:03,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:37:03,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 04:37:03,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 04:37:03,929 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 04:37:03,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 04:37:03,955 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 04:37:03,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 04:37:03,989 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:37:03,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:37:04,031 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:37:04,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:37:04,123 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:37:04,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:37:04,189 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:37:04,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:37:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:37:04,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278175138] [2021-03-11 04:37:04,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:37:04,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:37:04,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840740526] [2021-03-11 04:37:04,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:37:04,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:37:04,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:37:04,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:37:04,246 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:37:04,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 129 transitions, 1395 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:04,248 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:37:04,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:37:04,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:37:09,688 INFO L129 PetriNetUnfolder]: 17243/41891 cut-off events. [2021-03-11 04:37:09,688 INFO L130 PetriNetUnfolder]: For 273262/274236 co-relation queries the response was YES. [2021-03-11 04:37:10,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174442 conditions, 41891 events. 17243/41891 cut-off events. For 273262/274236 co-relation queries the response was YES. Maximal size of possible extension queue 4153. Compared 545409 event pairs, 5426 based on Foata normal form. 1/41411 useless extension candidates. Maximal degree in co-relation 174398. Up to 10704 conditions per place. [2021-03-11 04:37:10,239 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 203 selfloop transitions, 48 changer transitions 1/282 dead transitions. [2021-03-11 04:37:10,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 282 transitions, 3694 flow [2021-03-11 04:37:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:37:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:37:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:37:10,242 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:37:10,242 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:37:10,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:37:10,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:37:10,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:37:10,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:10,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:10,250 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:10,250 INFO L185 Difference]: Start difference. First operand has 135 places, 129 transitions, 1395 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:37:10,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 282 transitions, 3694 flow [2021-03-11 04:37:10,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 282 transitions, 3627 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-03-11 04:37:10,873 INFO L241 Difference]: Finished difference. Result has 152 places, 157 transitions, 1941 flow [2021-03-11 04:37:10,873 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=1377, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1941, PETRI_PLACES=152, PETRI_TRANSITIONS=157} [2021-03-11 04:37:10,873 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 80 predicate places. [2021-03-11 04:37:10,873 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 157 transitions, 1941 flow [2021-03-11 04:37:10,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:10,874 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:37:10,874 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:37:10,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 04:37:10,875 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:37:10,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:37:10,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1745806113, now seen corresponding path program 6 times [2021-03-11 04:37:10,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:37:10,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49342739] [2021-03-11 04:37:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:37:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:37:10,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:10,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:37:10,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:10,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:37:10,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:10,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:37:10,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:10,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:37:10,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 04:37:10,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 04:37:10,958 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 04:37:10,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 04:37:10,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:37:10,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:37:11,009 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 04:37:11,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 04:37:11,043 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:37:11,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:37:11,108 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:37:11,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:37:11,159 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:37:11,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:37:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:37:11,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49342739] [2021-03-11 04:37:11,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:37:11,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:37:11,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103224492] [2021-03-11 04:37:11,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:37:11,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:37:11,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:37:11,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:37:11,214 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:37:11,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 157 transitions, 1941 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:11,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:37:11,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:37:11,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:37:21,403 INFO L129 PetriNetUnfolder]: 22996/60267 cut-off events. [2021-03-11 04:37:21,404 INFO L130 PetriNetUnfolder]: For 529796/532942 co-relation queries the response was YES. [2021-03-11 04:37:22,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272115 conditions, 60267 events. 22996/60267 cut-off events. For 529796/532942 co-relation queries the response was YES. Maximal size of possible extension queue 6266. Compared 863956 event pairs, 7725 based on Foata normal form. 1/59358 useless extension candidates. Maximal degree in co-relation 272063. Up to 14934 conditions per place. [2021-03-11 04:37:22,351 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 227 selfloop transitions, 71 changer transitions 1/329 dead transitions. [2021-03-11 04:37:22,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 329 transitions, 4832 flow [2021-03-11 04:37:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:37:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:37:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:37:22,355 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:37:22,355 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:37:22,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:37:22,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:37:22,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:37:22,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:22,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:22,361 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:22,361 INFO L185 Difference]: Start difference. First operand has 152 places, 157 transitions, 1941 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:37:22,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 329 transitions, 4832 flow [2021-03-11 04:37:23,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 329 transitions, 4607 flow, removed 96 selfloop flow, removed 2 redundant places. [2021-03-11 04:37:23,810 INFO L241 Difference]: Finished difference. Result has 170 places, 204 transitions, 2853 flow [2021-03-11 04:37:23,810 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=1849, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2853, PETRI_PLACES=170, PETRI_TRANSITIONS=204} [2021-03-11 04:37:23,810 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 98 predicate places. [2021-03-11 04:37:23,810 INFO L480 AbstractCegarLoop]: Abstraction has has 170 places, 204 transitions, 2853 flow [2021-03-11 04:37:23,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:23,811 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:37:23,811 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:37:23,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 04:37:23,811 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:37:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:37:23,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1221552373, now seen corresponding path program 7 times [2021-03-11 04:37:23,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:37:23,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462781639] [2021-03-11 04:37:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:37:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:37:23,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:23,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:37:23,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:23,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:37:23,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:37:23,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:23,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:37:23,876 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 04:37:23,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 04:37:23,893 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:37:23,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:37:23,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 04:37:23,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 04:37:23,946 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 04:37:23,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 04:37:24,006 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:37:24,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:37:24,072 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:37:24,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:37:24,115 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:37:24,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:37:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:37:24,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462781639] [2021-03-11 04:37:24,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:37:24,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:37:24,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023347097] [2021-03-11 04:37:24,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:37:24,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:37:24,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:37:24,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:37:24,156 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:37:24,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 204 transitions, 2853 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:24,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:37:24,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:37:24,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:37:43,329 INFO L129 PetriNetUnfolder]: 30684/89692 cut-off events. [2021-03-11 04:37:43,329 INFO L130 PetriNetUnfolder]: For 980133/987088 co-relation queries the response was YES. [2021-03-11 04:37:44,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 424260 conditions, 89692 events. 30684/89692 cut-off events. For 980133/987088 co-relation queries the response was YES. Maximal size of possible extension queue 9350. Compared 1431450 event pairs, 10859 based on Foata normal form. 3/87725 useless extension candidates. Maximal degree in co-relation 424199. Up to 21146 conditions per place. [2021-03-11 04:37:44,919 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 300 selfloop transitions, 110 changer transitions 1/441 dead transitions. [2021-03-11 04:37:44,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 441 transitions, 7296 flow [2021-03-11 04:37:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:37:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:37:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:37:44,923 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:37:44,924 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:37:44,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:37:44,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:37:44,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:37:44,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:44,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:44,930 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:44,930 INFO L185 Difference]: Start difference. First operand has 170 places, 204 transitions, 2853 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:37:44,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 441 transitions, 7296 flow [2021-03-11 04:37:48,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 441 transitions, 7091 flow, removed 84 selfloop flow, removed 2 redundant places. [2021-03-11 04:37:48,509 INFO L241 Difference]: Finished difference. Result has 188 places, 293 transitions, 4836 flow [2021-03-11 04:37:48,509 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=2761, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4836, PETRI_PLACES=188, PETRI_TRANSITIONS=293} [2021-03-11 04:37:48,509 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 116 predicate places. [2021-03-11 04:37:48,509 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 293 transitions, 4836 flow [2021-03-11 04:37:48,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:48,509 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:37:48,509 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:37:48,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 04:37:48,510 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:37:48,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:37:48,510 INFO L82 PathProgramCache]: Analyzing trace with hash 734221871, now seen corresponding path program 8 times [2021-03-11 04:37:48,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:37:48,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019814965] [2021-03-11 04:37:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:37:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:37:48,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:37:48,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:48,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:37:48,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:48,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:37:48,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:37:48,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:37:48,570 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:37:48,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:37:48,587 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 04:37:48,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 04:37:48,610 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 04:37:48,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 04:37:48,654 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 04:37:48,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 04:37:48,716 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:37:48,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:37:48,775 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:37:48,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:37:48,822 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:37:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:37:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:37:48,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019814965] [2021-03-11 04:37:48,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:37:48,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:37:48,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460815347] [2021-03-11 04:37:48,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:37:48,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:37:48,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:37:48,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:37:48,874 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:37:48,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 293 transitions, 4836 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:37:48,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:37:48,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:37:48,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:38:25,141 INFO L129 PetriNetUnfolder]: 40505/130346 cut-off events. [2021-03-11 04:38:25,141 INFO L130 PetriNetUnfolder]: For 1714340/1730506 co-relation queries the response was YES. [2021-03-11 04:38:27,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641635 conditions, 130346 events. 40505/130346 cut-off events. For 1714340/1730506 co-relation queries the response was YES. Maximal size of possible extension queue 14240. Compared 2291122 event pairs, 14538 based on Foata normal form. 8/128520 useless extension candidates. Maximal degree in co-relation 641565. Up to 31224 conditions per place. [2021-03-11 04:38:27,855 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 319 selfloop transitions, 175 changer transitions 1/525 dead transitions. [2021-03-11 04:38:27,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 525 transitions, 9947 flow [2021-03-11 04:38:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:38:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:38:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:38:27,859 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:38:27,859 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:38:27,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:38:27,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:38:27,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:38:27,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:38:27,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:38:27,866 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:38:27,866 INFO L185 Difference]: Start difference. First operand has 188 places, 293 transitions, 4836 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:38:27,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 525 transitions, 9947 flow [2021-03-11 04:38:36,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 525 transitions, 9787 flow, removed 65 selfloop flow, removed 2 redundant places. [2021-03-11 04:38:36,994 INFO L241 Difference]: Finished difference. Result has 206 places, 412 transitions, 7973 flow [2021-03-11 04:38:36,994 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=4733, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7973, PETRI_PLACES=206, PETRI_TRANSITIONS=412} [2021-03-11 04:38:36,994 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 134 predicate places. [2021-03-11 04:38:36,994 INFO L480 AbstractCegarLoop]: Abstraction has has 206 places, 412 transitions, 7973 flow [2021-03-11 04:38:36,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:38:36,995 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:38:36,995 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:38:36,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 04:38:36,995 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:38:36,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:38:36,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1038624949, now seen corresponding path program 9 times [2021-03-11 04:38:36,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:38:36,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475972479] [2021-03-11 04:38:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:38:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:38:37,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:38:37,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:38:37,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:38:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:38:37,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 04:38:37,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 04:38:37,045 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:38:37,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:38:37,057 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 04:38:37,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 04:38:37,074 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 04:38:37,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 04:38:37,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 04:38:37,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 04:38:37,147 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 04:38:37,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 04:38:37,201 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:38:37,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:38:37,255 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:38:37,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:38:37,313 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:38:37,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:38:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:38:37,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475972479] [2021-03-11 04:38:37,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:38:37,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:38:37,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646882711] [2021-03-11 04:38:37,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:38:37,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:38:37,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:38:37,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:38:37,353 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:38:37,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 412 transitions, 7973 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:38:37,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:38:37,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:38:37,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:24,669 INFO L129 PetriNetUnfolder]: 45030/141834 cut-off events. [2021-03-11 04:39:24,669 INFO L130 PetriNetUnfolder]: For 2438619/2500459 co-relation queries the response was YES. [2021-03-11 04:39:27,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 781690 conditions, 141834 events. 45030/141834 cut-off events. For 2438619/2500459 co-relation queries the response was YES. Maximal size of possible extension queue 15943. Compared 2485223 event pairs, 15874 based on Foata normal form. 21/140306 useless extension candidates. Maximal degree in co-relation 781611. Up to 36600 conditions per place. [2021-03-11 04:39:28,030 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 381 selfloop transitions, 256 changer transitions 1/668 dead transitions. [2021-03-11 04:39:28,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 668 transitions, 14701 flow [2021-03-11 04:39:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:39:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:39:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:39:28,032 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:39:28,033 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:39:28,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:39:28,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:28,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:39:28,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:39:28,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:39:28,037 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:39:28,037 INFO L185 Difference]: Start difference. First operand has 206 places, 412 transitions, 7973 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:39:28,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 668 transitions, 14701 flow [2021-03-11 04:39:47,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 668 transitions, 14507 flow, removed 66 selfloop flow, removed 2 redundant places. [2021-03-11 04:39:47,093 INFO L241 Difference]: Finished difference. Result has 224 places, 580 transitions, 13063 flow [2021-03-11 04:39:47,094 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=7825, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13063, PETRI_PLACES=224, PETRI_TRANSITIONS=580} [2021-03-11 04:39:47,094 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 152 predicate places. [2021-03-11 04:39:47,094 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 580 transitions, 13063 flow [2021-03-11 04:39:47,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:39:47,094 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:47,094 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:47,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 04:39:47,095 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:39:47,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:47,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1115273055, now seen corresponding path program 10 times [2021-03-11 04:39:47,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:47,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242398752] [2021-03-11 04:39:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:47,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:47,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:47,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:47,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:39:47,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:47,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:39:47,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:47,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:39:47,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 04:39:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 04:39:47,186 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 04:39:47,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 04:39:47,219 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 04:39:47,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 04:39:47,260 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 04:39:47,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 04:39:47,315 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:39:47,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:39:47,454 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2021-03-11 04:39:47,456 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:39:47,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:39:47,511 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:39:47,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:39:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:47,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242398752] [2021-03-11 04:39:47,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:47,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:39:47,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412958162] [2021-03-11 04:39:47,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:39:47,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:47,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:39:47,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:39:47,554 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:39:47,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 580 transitions, 13063 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:39:47,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:47,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:39:47,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:40:49,198 INFO L129 PetriNetUnfolder]: 49901/165878 cut-off events. [2021-03-11 04:40:49,198 INFO L130 PetriNetUnfolder]: For 3454653/3533168 co-relation queries the response was YES. [2021-03-11 04:40:52,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 973377 conditions, 165878 events. 49901/165878 cut-off events. For 3454653/3533168 co-relation queries the response was YES. Maximal size of possible extension queue 18514. Compared 3013695 event pairs, 20791 based on Foata normal form. 44/163947 useless extension candidates. Maximal degree in co-relation 973289. Up to 36894 conditions per place. [2021-03-11 04:40:53,280 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 307 selfloop transitions, 418 changer transitions 1/756 dead transitions. [2021-03-11 04:40:53,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 756 transitions, 17905 flow [2021-03-11 04:40:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 04:40:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 04:40:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-11 04:40:53,282 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.953962703962704 [2021-03-11 04:40:53,282 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-11 04:40:53,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-11 04:40:53,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:40:53,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-11 04:40:53,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:40:53,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:40:53,286 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:40:53,286 INFO L185 Difference]: Start difference. First operand has 224 places, 580 transitions, 13063 flow. Second operand 12 states and 1637 transitions. [2021-03-11 04:40:53,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 756 transitions, 17905 flow [2021-03-11 04:42:02,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 756 transitions, 17201 flow, removed 275 selfloop flow, removed 2 redundant places. [2021-03-11 04:42:02,335 INFO L241 Difference]: Finished difference. Result has 242 places, 619 transitions, 14737 flow [2021-03-11 04:42:02,336 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=12623, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=379, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14737, PETRI_PLACES=242, PETRI_TRANSITIONS=619} [2021-03-11 04:42:02,336 INFO L335 CegarLoopForPetriNet]: 72 programPoint places, 170 predicate places. [2021-03-11 04:42:02,336 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 619 transitions, 14737 flow [2021-03-11 04:42:02,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:42:02,336 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:42:02,337 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:42:02,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 04:42:02,337 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 04:42:02,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:42:02,337 INFO L82 PathProgramCache]: Analyzing trace with hash -328563795, now seen corresponding path program 11 times [2021-03-11 04:42:02,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:42:02,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277233226] [2021-03-11 04:42:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:42:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:42:02,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:42:02,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:42:02,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:42:02,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:42:02,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:42:02,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:42:02,383 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:42:02,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:42:02,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:42:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:42:02,413 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:42:02,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:42:02,435 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:42:02,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:42:02,465 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:42:02,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:42:02,504 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 04:42:02,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 04:42:02,540 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 04:42:02,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 04:42:02,594 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 04:42:02,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 04:42:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:42:02,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277233226] [2021-03-11 04:42:02,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:42:02,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 04:42:02,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755624146] [2021-03-11 04:42:02,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 04:42:02,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:42:02,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 04:42:02,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 04:42:02,634 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 143 [2021-03-11 04:42:02,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 619 transitions, 14737 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:42:02,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:42:02,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 143 [2021-03-11 04:42:02,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand