/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 12:48:05,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 12:48:05,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 12:48:05,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 12:48:05,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf [2021-08-13 12:48:05,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 12:48:05,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 12:48:05,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 12:48:05,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 12:48:05,460 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 12:48:05,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 12:48:05,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 12:48:05,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 12:48:05,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 12:48:05,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 12:48:05,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 12:48:05,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 12:48:05,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 12:48:05,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 12:48:05,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 12:48:05,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 12:48:05,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 12:48:05,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 12:48:05,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 12:48:05,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 12:48:05,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 12:48:05,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:48:05,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 12:48:05,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 12:48:05,464 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 12:48:05,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 12:48:05,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 12:48:05,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 12:48:05,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 12:48:05,764 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 12:48:05,766 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 12:48:05,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2021-08-13 12:48:05,767 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2021-08-13 12:48:05,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 12:48:05,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 12:48:05,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 12:48:05,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 12:48:05,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 12:48:05,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 12:48:05,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 12:48:05,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 12:48:05,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 12:48:05,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... [2021-08-13 12:48:05,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 12:48:05,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 12:48:05,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 12:48:05,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 12:48:05,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:48:05,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 12:48:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 12:48:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 12:48:05,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 12:48:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 12:48:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 12:48:05,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 12:48:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 12:48:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 12:48:05,920 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 12:48:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 12:48:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 12:48:05,920 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 12:48:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 12:48:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 12:48:05,921 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 12:48:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 12:48:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 12:48:05,922 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 12:48:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 12:48:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 12:48:05,923 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 12:48:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 12:48:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 12:48:05,924 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 12:48:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 12:48:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 12:48:05,925 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 12:48:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 12:48:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 12:48:05,926 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 12:48:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 12:48:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 12:48:05,926 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 12:48:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 12:48:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 12:48:05,927 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 12:48:06,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 12:48:06,113 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 12:48:06,114 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:48:06 BoogieIcfgContainer [2021-08-13 12:48:06,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 12:48:06,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 12:48:06,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 12:48:06,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 12:48:06,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:05" (1/2) ... [2021-08-13 12:48:06,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9adbae and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:48:06, skipping insertion in model container [2021-08-13 12:48:06,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:48:06" (2/2) ... [2021-08-13 12:48:06,122 INFO L111 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2021-08-13 12:48:06,130 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 12:48:06,131 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 12:48:06,131 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 12:48:06,336 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-08-13 12:48:06,357 INFO L255 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-08-13 12:48:06,385 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 12:48:06,385 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 12:48:06,385 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 12:48:06,385 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 12:48:06,385 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 12:48:06,385 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 12:48:06,386 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 12:48:06,386 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 12:48:06,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 168 transitions, 754 flow [2021-08-13 12:48:07,684 INFO L129 PetriNetUnfolder]: 9217/11300 cut-off events. [2021-08-13 12:48:07,684 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-08-13 12:48:07,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22598 conditions, 11300 events. 9217/11300 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 45968 event pairs, 0 based on Foata normal form. 0/11299 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2021-08-13 12:48:07,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 168 transitions, 754 flow [2021-08-13 12:48:07,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 155 transitions, 706 flow [2021-08-13 12:48:08,786 INFO L129 PetriNetUnfolder]: 9217/11297 cut-off events. [2021-08-13 12:48:08,786 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-08-13 12:48:08,786 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:08,787 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:08,788 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:08,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:08,794 INFO L82 PathProgramCache]: Analyzing trace with hash 647344664, now seen corresponding path program 1 times [2021-08-13 12:48:08,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:08,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540211179] [2021-08-13 12:48:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:08,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:08,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:08,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:08,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:09,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:09,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:09,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:09,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540211179] [2021-08-13 12:48:09,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540211179] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:09,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:09,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:09,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024147882] [2021-08-13 12:48:09,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:09,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:09,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:09,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:09,038 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:09,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 155 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:09,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:09,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:09,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:09,855 INFO L129 PetriNetUnfolder]: 6657/8352 cut-off events. [2021-08-13 12:48:09,855 INFO L130 PetriNetUnfolder]: For 10753/10753 co-relation queries the response was YES. [2021-08-13 12:48:09,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17344 conditions, 8352 events. 6657/8352 cut-off events. For 10753/10753 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 36663 event pairs, 0 based on Foata normal form. 386/8738 useless extension candidates. Maximal degree in co-relation 10277. Up to 2310 conditions per place. [2021-08-13 12:48:10,041 INFO L132 encePairwiseOnDemand]: 162/168 looper letters, 6 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2021-08-13 12:48:10,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 150 transitions, 695 flow [2021-08-13 12:48:10,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:10,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:10,054 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:10,054 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:10,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:10,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:10,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:10,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,069 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2021-08-13 12:48:10,069 INFO L482 AbstractCegarLoop]: Abstraction has has 81 places, 150 transitions, 695 flow [2021-08-13 12:48:10,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,070 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:10,070 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:10,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 12:48:10,070 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:10,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:10,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1525982910, now seen corresponding path program 1 times [2021-08-13 12:48:10,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:10,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354034268] [2021-08-13 12:48:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:10,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:10,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:10,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:10,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:10,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:10,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:10,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:10,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354034268] [2021-08-13 12:48:10,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354034268] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:10,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:10,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:10,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675798801] [2021-08-13 12:48:10,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:10,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:10,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:10,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:10,106 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:10,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 150 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:10,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:10,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:10,569 INFO L129 PetriNetUnfolder]: 3930/5117 cut-off events. [2021-08-13 12:48:10,570 INFO L130 PetriNetUnfolder]: For 7775/7775 co-relation queries the response was YES. [2021-08-13 12:48:10,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11010 conditions, 5117 events. 3930/5117 cut-off events. For 7775/7775 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 22490 event pairs, 0 based on Foata normal form. 382/5499 useless extension candidates. Maximal degree in co-relation 7084. Up to 1320 conditions per place. [2021-08-13 12:48:10,615 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 5 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2021-08-13 12:48:10,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 144 transitions, 677 flow [2021-08-13 12:48:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:10,619 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:10,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:10,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:10,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:10,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:10,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,623 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2021-08-13 12:48:10,623 INFO L482 AbstractCegarLoop]: Abstraction has has 83 places, 144 transitions, 677 flow [2021-08-13 12:48:10,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,624 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:10,624 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:10,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 12:48:10,625 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:10,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:10,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1379566560, now seen corresponding path program 1 times [2021-08-13 12:48:10,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:10,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174106755] [2021-08-13 12:48:10,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:10,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:10,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:10,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:10,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:10,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:10,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:10,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:10,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174106755] [2021-08-13 12:48:10,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174106755] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:10,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:10,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:10,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523133970] [2021-08-13 12:48:10,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:10,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:10,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:10,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:10,655 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:10,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 144 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:10,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:10,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:10,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:11,069 INFO L129 PetriNetUnfolder]: 3698/4848 cut-off events. [2021-08-13 12:48:11,069 INFO L130 PetriNetUnfolder]: For 7356/7356 co-relation queries the response was YES. [2021-08-13 12:48:11,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10916 conditions, 4848 events. 3698/4848 cut-off events. For 7356/7356 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 21084 event pairs, 0 based on Foata normal form. 37/4885 useless extension candidates. Maximal degree in co-relation 6858. Up to 1320 conditions per place. [2021-08-13 12:48:11,109 INFO L132 encePairwiseOnDemand]: 164/168 looper letters, 8 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2021-08-13 12:48:11,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 680 flow [2021-08-13 12:48:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:11,111 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:11,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:11,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:11,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:11,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:11,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,115 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2021-08-13 12:48:11,115 INFO L482 AbstractCegarLoop]: Abstraction has has 85 places, 141 transitions, 680 flow [2021-08-13 12:48:11,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,115 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:11,115 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:11,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 12:48:11,116 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1530877280, now seen corresponding path program 1 times [2021-08-13 12:48:11,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:11,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479322187] [2021-08-13 12:48:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:11,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:11,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:11,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:11,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:11,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:11,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:11,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:11,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:11,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479322187] [2021-08-13 12:48:11,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479322187] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:11,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:11,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:11,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271087376] [2021-08-13 12:48:11,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:11,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:11,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:11,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:11,156 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:11,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 141 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:11,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:11,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:11,476 INFO L129 PetriNetUnfolder]: 3264/4329 cut-off events. [2021-08-13 12:48:11,476 INFO L130 PetriNetUnfolder]: For 7579/7579 co-relation queries the response was YES. [2021-08-13 12:48:11,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10210 conditions, 4329 events. 3264/4329 cut-off events. For 7579/7579 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 19770 event pairs, 0 based on Foata normal form. 64/4393 useless extension candidates. Maximal degree in co-relation 6177. Up to 1320 conditions per place. [2021-08-13 12:48:11,524 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 7 selfloop transitions, 1 changer transitions 0/137 dead transitions. [2021-08-13 12:48:11,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 676 flow [2021-08-13 12:48:11,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:11,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:11,526 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:11,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:11,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:11,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:11,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:11,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,530 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2021-08-13 12:48:11,530 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 137 transitions, 676 flow [2021-08-13 12:48:11,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,531 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:11,531 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:11,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 12:48:11,531 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:11,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1733092768, now seen corresponding path program 1 times [2021-08-13 12:48:11,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:11,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134107094] [2021-08-13 12:48:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:11,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:11,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:11,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:11,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:11,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:11,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:11,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:11,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134107094] [2021-08-13 12:48:11,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134107094] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:11,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:11,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:11,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022193303] [2021-08-13 12:48:11,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:11,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:11,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:11,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:11,559 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:11,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 137 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:11,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:11,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:11,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:11,966 INFO L129 PetriNetUnfolder]: 3258/4322 cut-off events. [2021-08-13 12:48:11,966 INFO L130 PetriNetUnfolder]: For 8168/8168 co-relation queries the response was YES. [2021-08-13 12:48:11,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10590 conditions, 4322 events. 3258/4322 cut-off events. For 8168/8168 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 19416 event pairs, 0 based on Foata normal form. 1/4323 useless extension candidates. Maximal degree in co-relation 6434. Up to 1320 conditions per place. [2021-08-13 12:48:12,016 INFO L132 encePairwiseOnDemand]: 166/168 looper letters, 10 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-08-13 12:48:12,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 693 flow [2021-08-13 12:48:12,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:12,019 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:12,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:12,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,023 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-08-13 12:48:12,023 INFO L482 AbstractCegarLoop]: Abstraction has has 89 places, 136 transitions, 693 flow [2021-08-13 12:48:12,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,024 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:12,024 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:12,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 12:48:12,025 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:12,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:12,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1928391998, now seen corresponding path program 1 times [2021-08-13 12:48:12,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:12,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186321615] [2021-08-13 12:48:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:12,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:12,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:12,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:12,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186321615] [2021-08-13 12:48:12,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186321615] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:12,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:12,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:12,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623417257] [2021-08-13 12:48:12,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:12,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:12,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:12,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:12,086 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:12,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 136 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:12,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:12,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:12,505 INFO L129 PetriNetUnfolder]: 3223/4280 cut-off events. [2021-08-13 12:48:12,505 INFO L130 PetriNetUnfolder]: For 8902/8902 co-relation queries the response was YES. [2021-08-13 12:48:12,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10888 conditions, 4280 events. 3223/4280 cut-off events. For 8902/8902 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 19032 event pairs, 0 based on Foata normal form. 6/4286 useless extension candidates. Maximal degree in co-relation 6677. Up to 1320 conditions per place. [2021-08-13 12:48:12,544 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 9 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2021-08-13 12:48:12,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 134 transitions, 703 flow [2021-08-13 12:48:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:12,546 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:12,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:12,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,549 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-08-13 12:48:12,549 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 134 transitions, 703 flow [2021-08-13 12:48:12,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,550 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:12,551 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:12,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 12:48:12,551 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:12,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:12,551 INFO L82 PathProgramCache]: Analyzing trace with hash 12595962, now seen corresponding path program 1 times [2021-08-13 12:48:12,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:12,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280149152] [2021-08-13 12:48:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:12,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:12,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:12,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:12,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280149152] [2021-08-13 12:48:12,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280149152] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:12,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:12,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:12,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314431326] [2021-08-13 12:48:12,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:12,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:12,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:12,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:12,606 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:12,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 134 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,606 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:12,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:12,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:12,724 INFO L129 PetriNetUnfolder]: 1015/1490 cut-off events. [2021-08-13 12:48:12,724 INFO L130 PetriNetUnfolder]: For 4245/4245 co-relation queries the response was YES. [2021-08-13 12:48:12,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 1490 events. 1015/1490 cut-off events. For 4245/4245 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6447 event pairs, 0 based on Foata normal form. 330/1820 useless extension candidates. Maximal degree in co-relation 3408. Up to 360 conditions per place. [2021-08-13 12:48:12,745 INFO L132 encePairwiseOnDemand]: 159/168 looper letters, 3 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-08-13 12:48:12,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 126 transitions, 671 flow [2021-08-13 12:48:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:12,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:12,747 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:12,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:12,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,750 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 14 predicate places. [2021-08-13 12:48:12,750 INFO L482 AbstractCegarLoop]: Abstraction has has 93 places, 126 transitions, 671 flow [2021-08-13 12:48:12,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,751 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:12,751 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:12,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 12:48:12,751 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:12,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:12,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1667527728, now seen corresponding path program 1 times [2021-08-13 12:48:12,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:12,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010949381] [2021-08-13 12:48:12,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:12,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:12,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:12,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:12,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010949381] [2021-08-13 12:48:12,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010949381] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:12,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:12,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:12,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053920711] [2021-08-13 12:48:12,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:12,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:12,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:12,795 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:12,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 126 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:12,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:12,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:12,839 INFO L129 PetriNetUnfolder]: 223/407 cut-off events. [2021-08-13 12:48:12,839 INFO L130 PetriNetUnfolder]: For 1280/1280 co-relation queries the response was YES. [2021-08-13 12:48:12,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 407 events. 223/407 cut-off events. For 1280/1280 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1524 event pairs, 0 based on Foata normal form. 129/536 useless extension candidates. Maximal degree in co-relation 967. Up to 84 conditions per place. [2021-08-13 12:48:12,844 INFO L132 encePairwiseOnDemand]: 158/168 looper letters, 2 selfloop transitions, 1 changer transitions 0/117 dead transitions. [2021-08-13 12:48:12,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 632 flow [2021-08-13 12:48:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:12,846 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:12,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:12,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,849 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 16 predicate places. [2021-08-13 12:48:12,849 INFO L482 AbstractCegarLoop]: Abstraction has has 95 places, 117 transitions, 632 flow [2021-08-13 12:48:12,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,849 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:12,850 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:12,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 12:48:12,850 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:12,851 INFO L82 PathProgramCache]: Analyzing trace with hash 604395462, now seen corresponding path program 1 times [2021-08-13 12:48:12,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:12,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501131882] [2021-08-13 12:48:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:12,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:12,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:12,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:12,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501131882] [2021-08-13 12:48:12,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501131882] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:12,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:12,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:12,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004008733] [2021-08-13 12:48:12,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:12,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:12,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:12,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:12,897 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:12,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 117 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:12,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:12,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:12,927 INFO L129 PetriNetUnfolder]: 55/155 cut-off events. [2021-08-13 12:48:12,927 INFO L130 PetriNetUnfolder]: For 412/412 co-relation queries the response was YES. [2021-08-13 12:48:12,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 155 events. 55/155 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 446 event pairs, 0 based on Foata normal form. 28/183 useless extension candidates. Maximal degree in co-relation 311. Up to 20 conditions per place. [2021-08-13 12:48:12,929 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 4 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-08-13 12:48:12,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 110 transitions, 607 flow [2021-08-13 12:48:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:12,931 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:12,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:12,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,934 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2021-08-13 12:48:12,934 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 110 transitions, 607 flow [2021-08-13 12:48:12,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,934 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:12,934 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:12,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 12:48:12,934 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:12,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1881922806, now seen corresponding path program 1 times [2021-08-13 12:48:12,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:12,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498374456] [2021-08-13 12:48:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:12,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:12,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:12,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:12,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:12,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498374456] [2021-08-13 12:48:12,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498374456] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:12,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:12,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:12,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96271159] [2021-08-13 12:48:12,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:12,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:12,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:12,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:12,975 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 12:48:12,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 110 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:12,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 12:48:12,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:12,992 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-08-13 12:48:12,992 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-08-13 12:48:12,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 45 events. 0/45 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 10/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 12:48:12,993 INFO L132 encePairwiseOnDemand]: 157/168 looper letters, 1 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2021-08-13 12:48:12,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 45 transitions, 196 flow [2021-08-13 12:48:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:12,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 12:48:12,994 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 12:48:12,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:12,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 12:48:12,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,997 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2021-08-13 12:48:12,997 INFO L482 AbstractCegarLoop]: Abstraction has has 99 places, 45 transitions, 196 flow [2021-08-13 12:48:12,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:12,998 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:12,998 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:12,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 12:48:12,998 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:12,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:12,999 INFO L82 PathProgramCache]: Analyzing trace with hash -302006568, now seen corresponding path program 1 times [2021-08-13 12:48:13,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:13,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777877283] [2021-08-13 12:48:13,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:13,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:13,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:13,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:13,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:13,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:13,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 12:48:13,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 12:48:13,184 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 12:48:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 12:48:13,238 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-08-13 12:48:13,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-08-13 12:48:13,294 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-08-13 12:48:13,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-08-13 12:48:13,347 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-08-13 12:48:13,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-08-13 12:48:13,413 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:48:13,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:48:13,470 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:48:13,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:48:13,552 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:48:13,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:48:13,637 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:48:13,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:48:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:13,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:13,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777877283] [2021-08-13 12:48:13,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777877283] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:13,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:13,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:48:13,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698771040] [2021-08-13 12:48:13,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:48:13,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:13,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:48:13,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:48:13,705 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:48:13,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 45 transitions, 196 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:13,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:13,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:48:13,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:15,532 INFO L129 PetriNetUnfolder]: 12291/18851 cut-off events. [2021-08-13 12:48:15,532 INFO L130 PetriNetUnfolder]: For 1100/1100 co-relation queries the response was YES. [2021-08-13 12:48:15,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35033 conditions, 18851 events. 12291/18851 cut-off events. For 1100/1100 co-relation queries the response was YES. Maximal size of possible extension queue 1579. Compared 139315 event pairs, 4097 based on Foata normal form. 1/18465 useless extension candidates. Maximal degree in co-relation 34914. Up to 5633 conditions per place. [2021-08-13 12:48:15,924 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 65 selfloop transitions, 10 changer transitions 1/109 dead transitions. [2021-08-13 12:48:15,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 476 flow [2021-08-13 12:48:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 12:48:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 12:48:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 12:48:15,929 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 12:48:15,929 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 12:48:15,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 12:48:15,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:15,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 12:48:15,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:15,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:15,939 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:15,939 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2021-08-13 12:48:15,939 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 476 flow [2021-08-13 12:48:15,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:15,940 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:15,940 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:15,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 12:48:15,941 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:15,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1750664972, now seen corresponding path program 2 times [2021-08-13 12:48:15,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:15,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375989367] [2021-08-13 12:48:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:16,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:16,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:16,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:16,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:16,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:16,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:16,044 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:16,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:16,072 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:48:16,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:48:16,100 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:48:16,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:48:16,136 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:48:16,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:48:16,182 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:48:16,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:48:16,235 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:48:16,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:48:16,307 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 12:48:16,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 12:48:16,378 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:48:16,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:48:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:16,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:16,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375989367] [2021-08-13 12:48:16,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375989367] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:16,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:16,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:48:16,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8454565] [2021-08-13 12:48:16,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:48:16,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:16,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:48:16,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:48:16,444 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:48:16,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 109 transitions, 476 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:16,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:16,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:48:16,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:19,013 INFO L129 PetriNetUnfolder]: 16181/28922 cut-off events. [2021-08-13 12:48:19,014 INFO L130 PetriNetUnfolder]: For 9338/42430 co-relation queries the response was YES. [2021-08-13 12:48:19,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76833 conditions, 28922 events. 16181/28922 cut-off events. For 9338/42430 co-relation queries the response was YES. Maximal size of possible extension queue 2015. Compared 262628 event pairs, 1793 based on Foata normal form. 1/28535 useless extension candidates. Maximal degree in co-relation 76490. Up to 7706 conditions per place. [2021-08-13 12:48:19,619 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 277 selfloop transitions, 49 changer transitions 4/363 dead transitions. [2021-08-13 12:48:19,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 363 transitions, 2152 flow [2021-08-13 12:48:19,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 12:48:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 12:48:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 12:48:19,626 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 12:48:19,626 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 12:48:19,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 12:48:19,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:19,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 12:48:19,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:19,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:19,638 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:19,638 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-08-13 12:48:19,638 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 363 transitions, 2152 flow [2021-08-13 12:48:19,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:19,639 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:19,639 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:19,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 12:48:19,639 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:19,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:19,640 INFO L82 PathProgramCache]: Analyzing trace with hash -62375250, now seen corresponding path program 3 times [2021-08-13 12:48:19,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:19,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363506723] [2021-08-13 12:48:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:19,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:19,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:19,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:19,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:19,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:19,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:19,721 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:19,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:19,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:19,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:19,756 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:48:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:48:19,783 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:48:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:48:19,816 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:48:19,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:48:19,858 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:48:19,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:48:19,919 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 12:48:19,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 12:48:19,997 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:48:19,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:48:20,071 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:48:20,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:48:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:20,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:20,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363506723] [2021-08-13 12:48:20,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363506723] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:20,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:20,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:48:20,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084577572] [2021-08-13 12:48:20,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:48:20,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:20,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:48:20,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:48:20,138 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:48:20,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 363 transitions, 2152 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:20,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:20,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:48:20,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:25,180 INFO L129 PetriNetUnfolder]: 21639/41196 cut-off events. [2021-08-13 12:48:25,180 INFO L130 PetriNetUnfolder]: For 16701/104129 co-relation queries the response was YES. [2021-08-13 12:48:25,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137590 conditions, 41196 events. 21639/41196 cut-off events. For 16701/104129 co-relation queries the response was YES. Maximal size of possible extension queue 3158. Compared 421663 event pairs, 769 based on Foata normal form. 3/40710 useless extension candidates. Maximal degree in co-relation 136736. Up to 10829 conditions per place. [2021-08-13 12:48:25,816 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 858 selfloop transitions, 165 changer transitions 6/1062 dead transitions. [2021-08-13 12:48:25,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 1062 transitions, 8404 flow [2021-08-13 12:48:25,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 12:48:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 12:48:25,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 12:48:25,820 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 12:48:25,820 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 12:48:25,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 12:48:25,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:25,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 12:48:25,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:25,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:25,831 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:25,831 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 56 predicate places. [2021-08-13 12:48:25,831 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 1062 transitions, 8404 flow [2021-08-13 12:48:25,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:25,832 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:25,832 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:25,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 12:48:25,832 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:25,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:25,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1739527962, now seen corresponding path program 4 times [2021-08-13 12:48:25,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:25,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605436278] [2021-08-13 12:48:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:25,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:25,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:25,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:25,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:25,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:25,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:25,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:25,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:25,916 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:25,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:26,035 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-08-13 12:48:26,037 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:48:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:48:26,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:48:26,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:48:26,104 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:48:26,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:48:26,146 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 12:48:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 12:48:26,195 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 12:48:26,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 12:48:26,247 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:48:26,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:48:26,305 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:48:26,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:48:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:26,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:26,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605436278] [2021-08-13 12:48:26,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605436278] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:26,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:26,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:48:26,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706145290] [2021-08-13 12:48:26,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:48:26,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:26,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:48:26,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:48:26,359 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:48:26,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 1062 transitions, 8404 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:26,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:26,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:48:26,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:35,188 INFO L129 PetriNetUnfolder]: 29265/56405 cut-off events. [2021-08-13 12:48:35,188 INFO L130 PetriNetUnfolder]: For 20749/175063 co-relation queries the response was YES. [2021-08-13 12:48:35,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227160 conditions, 56405 events. 29265/56405 cut-off events. For 20749/175063 co-relation queries the response was YES. Maximal size of possible extension queue 4853. Compared 614764 event pairs, 321 based on Foata normal form. 19/55890 useless extension candidates. Maximal degree in co-relation 225215. Up to 15339 conditions per place. [2021-08-13 12:48:36,075 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 2319 selfloop transitions, 503 changer transitions 8/2863 dead transitions. [2021-08-13 12:48:36,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 2863 transitions, 28472 flow [2021-08-13 12:48:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 12:48:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 12:48:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 12:48:36,079 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 12:48:36,079 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 12:48:36,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 12:48:36,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:36,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 12:48:36,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:36,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:36,089 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:36,090 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 68 predicate places. [2021-08-13 12:48:36,090 INFO L482 AbstractCegarLoop]: Abstraction has has 147 places, 2863 transitions, 28472 flow [2021-08-13 12:48:36,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:36,091 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:36,091 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:36,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 12:48:36,091 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:48:36,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:36,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1784972510, now seen corresponding path program 5 times [2021-08-13 12:48:36,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:36,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32889171] [2021-08-13 12:48:36,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:36,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:36,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:36,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:36,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:36,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:36,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:36,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:36,180 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:36,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:36,201 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:48:36,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:48:36,228 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:48:36,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:48:36,344 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 12:48:36,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 12:48:36,378 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 12:48:36,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 12:48:36,435 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 12:48:36,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 12:48:36,499 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:48:36,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:48:36,571 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:48:36,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:48:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:36,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:36,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32889171] [2021-08-13 12:48:36,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32889171] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:36,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:36,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:48:36,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232757909] [2021-08-13 12:48:36,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:48:36,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:36,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:48:36,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:48:36,633 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:48:36,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 2863 transitions, 28472 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:36,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:36,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:48:36,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:49:19,606 INFO L129 PetriNetUnfolder]: 43326/94365 cut-off events. [2021-08-13 12:49:19,607 INFO L130 PetriNetUnfolder]: For 58009/457239 co-relation queries the response was YES. [2021-08-13 12:49:20,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 430065 conditions, 94365 events. 43326/94365 cut-off events. For 58009/457239 co-relation queries the response was YES. Maximal size of possible extension queue 8545. Compared 1228964 event pairs, 129 based on Foata normal form. 85/93627 useless extension candidates. Maximal degree in co-relation 426029. Up to 25330 conditions per place. [2021-08-13 12:49:21,315 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 5720 selfloop transitions, 1032 changer transitions 10/6795 dead transitions. [2021-08-13 12:49:21,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 6795 transitions, 81316 flow [2021-08-13 12:49:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 12:49:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 12:49:21,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 12:49:21,320 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 12:49:21,320 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 12:49:21,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 12:49:21,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:49:21,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 12:49:21,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:21,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:21,328 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:21,328 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 80 predicate places. [2021-08-13 12:49:21,328 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 6795 transitions, 81316 flow [2021-08-13 12:49:21,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:21,329 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:49:21,329 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:49:21,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 12:49:21,329 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:49:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:49:21,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2140238052, now seen corresponding path program 6 times [2021-08-13 12:49:21,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:49:21,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258276210] [2021-08-13 12:49:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:49:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:49:21,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:21,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:21,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:21,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:49:21,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:21,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:49:21,438 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:49:21,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:49:21,457 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:49:21,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:49:21,489 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:49:21,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:49:21,534 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-08-13 12:49:21,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 12:49:21,569 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 12:49:21,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 12:49:21,633 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 12:49:21,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 12:49:21,703 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 12:49:21,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 12:49:21,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:49:21,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:49:21,862 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:49:21,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:49:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:49:21,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:49:21,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258276210] [2021-08-13 12:49:21,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258276210] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:49:21,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:49:21,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:49:21,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238813605] [2021-08-13 12:49:21,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:49:21,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:49:21,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:49:21,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:49:21,938 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:49:21,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 6795 transitions, 81316 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:21,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:49:21,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:49:21,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:53:38,985 INFO L129 PetriNetUnfolder]: 58710/122404 cut-off events. [2021-08-13 12:53:38,986 INFO L130 PetriNetUnfolder]: For 65990/1721086 co-relation queries the response was YES. [2021-08-13 12:53:40,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 652031 conditions, 122404 events. 58710/122404 cut-off events. For 65990/1721086 co-relation queries the response was YES. Maximal size of possible extension queue 12045. Compared 1591158 event pairs, 49 based on Foata normal form. 496/121581 useless extension candidates. Maximal degree in co-relation 645092. Up to 34573 conditions per place. [2021-08-13 12:53:41,447 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 12595 selfloop transitions, 2237 changer transitions 12/14877 dead transitions. [2021-08-13 12:53:41,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 14877 transitions, 207988 flow [2021-08-13 12:53:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 12:53:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 12:53:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 12:53:41,451 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 12:53:41,451 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 12:53:41,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 12:53:41,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:53:41,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 12:53:41,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:53:41,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:53:41,458 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:53:41,459 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 92 predicate places. [2021-08-13 12:53:41,459 INFO L482 AbstractCegarLoop]: Abstraction has has 171 places, 14877 transitions, 207988 flow [2021-08-13 12:53:41,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:53:41,459 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:53:41,459 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:53:41,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 12:53:41,459 INFO L430 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.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 12:53:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:53:41,460 INFO L82 PathProgramCache]: Analyzing trace with hash 935575850, now seen corresponding path program 7 times [2021-08-13 12:53:41,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:53:41,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697290374] [2021-08-13 12:53:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:53:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:53:41,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:53:41,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:53:41,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:53:41,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:53:41,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:53:41,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:53:41,526 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:53:41,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:53:41,539 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:53:41,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:53:41,558 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 12:53:41,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 12:53:41,582 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-08-13 12:53:41,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 12:53:41,620 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 12:53:41,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 12:53:41,654 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 12:53:41,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 12:53:41,699 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:53:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:53:41,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:53:41,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:53:41,826 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 12:53:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 12:53:41,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:53:41,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:53:41,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697290374] [2021-08-13 12:53:41,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697290374] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:53:41,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:53:41,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 12:53:41,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65777836] [2021-08-13 12:53:41,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 12:53:41,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:53:41,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 12:53:41,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 12:53:41,888 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 12:53:41,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 14877 transitions, 207988 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:53:41,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:53:41,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 12:53:41,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-13 12:57:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 12:57:01,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 12:57:01,283 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-13 12:57:01,285 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 12:57:01,287 WARN L188 ceAbstractionStarter]: Timeout [2021-08-13 12:57:01,287 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 12:57:01 BasicIcfg [2021-08-13 12:57:01,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 12:57:01,288 INFO L168 Benchmark]: Toolchain (without parser) took 535499.03 ms. Allocated memory was 207.6 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 188.1 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 6.6 GB. Max. memory is 8.0 GB. [2021-08-13 12:57:01,288 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 207.6 MB. Free memory was 189.2 MB in the beginning and 189.1 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 12:57:01,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.08 ms. Allocated memory is still 207.6 MB. Free memory was 188.0 MB in the beginning and 186.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 12:57:01,288 INFO L168 Benchmark]: Boogie Preprocessor took 19.24 ms. Allocated memory is still 207.6 MB. Free memory was 186.5 MB in the beginning and 185.6 MB in the end (delta: 951.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 12:57:01,288 INFO L168 Benchmark]: RCFGBuilder took 271.08 ms. Allocated memory is still 207.6 MB. Free memory was 185.5 MB in the beginning and 172.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-13 12:57:01,288 INFO L168 Benchmark]: TraceAbstraction took 535171.06 ms. Allocated memory was 207.6 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 171.9 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 6.6 GB. Max. memory is 8.0 GB. [2021-08-13 12:57:01,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 207.6 MB. Free memory was 189.2 MB in the beginning and 189.1 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.08 ms. Allocated memory is still 207.6 MB. Free memory was 188.0 MB in the beginning and 186.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.24 ms. Allocated memory is still 207.6 MB. Free memory was 186.5 MB in the beginning and 185.6 MB in the end (delta: 951.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 271.08 ms. Allocated memory is still 207.6 MB. Free memory was 185.5 MB in the beginning and 172.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 535171.06 ms. Allocated memory was 207.6 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 171.9 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 6.6 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 35]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 155/168 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 114692 conditions, 15999 events (10674/15998 cut-off events. For 47161/7024407 co-relation queries the response was YES. Maximal size of possible extension queue 8300. Compared 151953 event pairs, 17 based on Foata normal form. 1664/25485 useless extension candidates. Maximal degree in co-relation 114656. Up to 11894 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 23 procedures, 103 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 897.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 534902.9ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 528066.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1503.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 466 SDtfs, 494 SDslu, 550 SDs, 0 SdLazy, 953 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1009.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3066.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=207988occurred in iteration=16, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.3ms SsaConstructionTime, 106.1ms SatisfiabilityAnalysisTime, 4078.2ms InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 16578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown