/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:43:02,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:43:02,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:43:02,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 07:43:02,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:43:02,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:43:02,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:43:02,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:43:02,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:43:02,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:43:02,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:43:02,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:43:02,433 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:43:02,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:43:02,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:43:02,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:43:02,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:43:02,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:43:02,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:43:02,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:43:02,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:43:02,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:43:02,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:43:02,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:43:02,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:43:02,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:43:02,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:43:02,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:43:02,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:43:02,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:43:02,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:43:02,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:43:02,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:43:02,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:43:02,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:43:02,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:43:02,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:43:02,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:43:02,438 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:43:02,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:43:02,439 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:43:02,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:43:02,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:43:02,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:43:02,767 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 07:43:02,768 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 07:43:02,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2021-08-13 07:43:02,769 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2021-08-13 07:43:02,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:43:02,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 07:43:02,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:43:02,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:43:02,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:43:02,803 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,809 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:43:02,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:43:02,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:43:02,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:43:02,829 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,829 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,830 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,830 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,833 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,834 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,834 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 07:43:02" (1/1) ... [2021-08-13 07:43:02,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:43:02,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:43:02,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:43:02,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:43:02,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:02" (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 07:43:02,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 07:43:02,906 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 07:43:02,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 07:43:02,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 07:43:02,906 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 07:43:02,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 07:43:02,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 07:43:02,907 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 07:43:02,907 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 07:43:02,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 07:43:02,907 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 07:43:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 07:43:02,908 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 07:43:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 07:43:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 07:43:02,909 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 07:43:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 07:43:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 07:43:02,910 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 07:43:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:43:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:43:02,911 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 07:43:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 07:43:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 07:43:02,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 07:43:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 07:43:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 07:43:02,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 07:43:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 07:43:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 07:43:02,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 07:43:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 07:43:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 07:43:02,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 07:43:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 07:43:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 07:43:02,915 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 07:43:03,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:43:03,100 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 07:43:03,102 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:43:03 BoogieIcfgContainer [2021-08-13 07:43:03,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:43:03,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:43:03,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:43:03,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:43:03,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:02" (1/2) ... [2021-08-13 07:43:03,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f9c9f8 and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:43:03, skipping insertion in model container [2021-08-13 07:43:03,107 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 07:43:03" (2/2) ... [2021-08-13 07:43:03,108 INFO L111 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2021-08-13 07:43:03,129 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:43:03,130 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:43:03,130 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:43:03,340 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-08-13 07:43:03,362 INFO L255 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-08-13 07:43:03,388 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:43:03,388 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:43:03,389 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:43:03,389 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:43:03,389 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:43:03,389 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:43:03,389 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:43:03,389 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:43:03,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 168 transitions, 754 flow [2021-08-13 07:43:04,650 INFO L129 PetriNetUnfolder]: 9217/11300 cut-off events. [2021-08-13 07:43:04,651 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-08-13 07:43:04,701 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 07:43:04,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 168 transitions, 754 flow [2021-08-13 07:43:04,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 155 transitions, 706 flow [2021-08-13 07:43:05,729 INFO L129 PetriNetUnfolder]: 9217/11297 cut-off events. [2021-08-13 07:43:05,729 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-08-13 07:43:05,729 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:05,730 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 07:43:05,731 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 07:43:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:05,738 INFO L82 PathProgramCache]: Analyzing trace with hash 647344664, now seen corresponding path program 1 times [2021-08-13 07:43:05,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:05,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778512297] [2021-08-13 07:43:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:05,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:05,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:05,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:05,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:05,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:05,932 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 07:43:05,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:05,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778512297] [2021-08-13 07:43:05,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778512297] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:05,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:05,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:05,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669332349] [2021-08-13 07:43:05,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:05,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:05,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:05,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:05,963 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:05,969 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 07:43:05,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:05,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:05,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:06,824 INFO L129 PetriNetUnfolder]: 6657/8352 cut-off events. [2021-08-13 07:43:06,824 INFO L130 PetriNetUnfolder]: For 10753/10753 co-relation queries the response was YES. [2021-08-13 07:43:06,850 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 07:43:06,907 INFO L132 encePairwiseOnDemand]: 162/168 looper letters, 6 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2021-08-13 07:43:06,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 150 transitions, 695 flow [2021-08-13 07:43:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:06,925 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:06,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:06,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:06,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:06,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:06,938 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 07:43:06,945 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 07:43:06,945 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 07:43:06,946 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2021-08-13 07:43:06,946 INFO L482 AbstractCegarLoop]: Abstraction has has 81 places, 150 transitions, 695 flow [2021-08-13 07:43:06,947 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 07:43:06,947 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:06,948 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 07:43:06,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 07:43:06,948 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 07:43:06,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:06,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1525982910, now seen corresponding path program 1 times [2021-08-13 07:43:06,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:06,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411189690] [2021-08-13 07:43:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:07,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:07,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:07,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:07,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:07,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:07,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:07,011 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 07:43:07,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:07,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411189690] [2021-08-13 07:43:07,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411189690] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:07,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:07,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:07,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600518545] [2021-08-13 07:43:07,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:07,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:07,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:07,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:07,019 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:07,020 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 07:43:07,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:07,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:07,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:07,478 INFO L129 PetriNetUnfolder]: 3930/5117 cut-off events. [2021-08-13 07:43:07,483 INFO L130 PetriNetUnfolder]: For 7775/7775 co-relation queries the response was YES. [2021-08-13 07:43:07,500 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 07:43:07,541 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 5 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2021-08-13 07:43:07,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 144 transitions, 677 flow [2021-08-13 07:43:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:07,543 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:07,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:07,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:07,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:07,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:07,545 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 07:43:07,547 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 07:43:07,547 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 07:43:07,548 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2021-08-13 07:43:07,548 INFO L482 AbstractCegarLoop]: Abstraction has has 83 places, 144 transitions, 677 flow [2021-08-13 07:43:07,548 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 07:43:07,548 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:07,549 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 07:43:07,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 07:43:07,549 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 07:43:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:07,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1379566560, now seen corresponding path program 1 times [2021-08-13 07:43:07,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:07,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726220248] [2021-08-13 07:43:07,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:07,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:07,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:07,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:07,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:07,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:07,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:07,606 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 07:43:07,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:07,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726220248] [2021-08-13 07:43:07,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726220248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:07,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:07,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:07,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316175626] [2021-08-13 07:43:07,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:07,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:07,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:07,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:07,609 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:07,610 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 07:43:07,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:07,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:07,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:07,950 INFO L129 PetriNetUnfolder]: 3698/4848 cut-off events. [2021-08-13 07:43:07,950 INFO L130 PetriNetUnfolder]: For 7356/7356 co-relation queries the response was YES. [2021-08-13 07:43:07,974 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 07:43:08,009 INFO L132 encePairwiseOnDemand]: 164/168 looper letters, 8 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2021-08-13 07:43:08,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 680 flow [2021-08-13 07:43:08,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:08,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:08,012 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:08,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:08,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,129 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 07:43:08,130 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 07:43:08,130 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 07:43:08,131 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2021-08-13 07:43:08,131 INFO L482 AbstractCegarLoop]: Abstraction has has 85 places, 141 transitions, 680 flow [2021-08-13 07:43:08,131 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 07:43:08,131 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:08,131 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 07:43:08,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 07:43:08,132 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 07:43:08,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:08,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1530877280, now seen corresponding path program 1 times [2021-08-13 07:43:08,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:08,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502317334] [2021-08-13 07:43:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:08,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:08,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:08,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:08,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:08,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:08,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:08,155 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 07:43:08,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:08,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502317334] [2021-08-13 07:43:08,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502317334] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:08,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:08,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:08,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311298684] [2021-08-13 07:43:08,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:08,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:08,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:08,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:08,157 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:08,158 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 07:43:08,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:08,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:08,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:08,458 INFO L129 PetriNetUnfolder]: 3264/4329 cut-off events. [2021-08-13 07:43:08,458 INFO L130 PetriNetUnfolder]: For 7579/7579 co-relation queries the response was YES. [2021-08-13 07:43:08,480 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 07:43:08,507 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 7 selfloop transitions, 1 changer transitions 0/137 dead transitions. [2021-08-13 07:43:08,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 676 flow [2021-08-13 07:43:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:08,510 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:08,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:08,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,511 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 07:43:08,512 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 07:43:08,513 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 07:43:08,513 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2021-08-13 07:43:08,513 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 137 transitions, 676 flow [2021-08-13 07:43:08,514 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 07:43:08,514 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:08,514 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 07:43:08,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 07:43:08,514 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 07:43:08,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:08,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1733092768, now seen corresponding path program 1 times [2021-08-13 07:43:08,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:08,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553957883] [2021-08-13 07:43:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:08,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:08,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:08,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:08,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:08,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:08,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:08,538 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 07:43:08,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:08,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553957883] [2021-08-13 07:43:08,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553957883] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:08,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:08,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:08,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921700188] [2021-08-13 07:43:08,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:08,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:08,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:08,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:08,540 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:08,541 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 07:43:08,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:08,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:08,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:08,944 INFO L129 PetriNetUnfolder]: 3258/4322 cut-off events. [2021-08-13 07:43:08,944 INFO L130 PetriNetUnfolder]: For 8168/8168 co-relation queries the response was YES. [2021-08-13 07:43:08,961 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 07:43:08,991 INFO L132 encePairwiseOnDemand]: 166/168 looper letters, 10 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-08-13 07:43:08,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 693 flow [2021-08-13 07:43:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:08,993 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:08,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:08,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:08,995 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 07:43:08,996 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 07:43:08,997 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 07:43:08,997 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-08-13 07:43:08,997 INFO L482 AbstractCegarLoop]: Abstraction has has 89 places, 136 transitions, 693 flow [2021-08-13 07:43:08,997 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 07:43:08,997 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:08,998 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 07:43:08,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 07:43:08,998 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 07:43:08,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:08,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1928391998, now seen corresponding path program 1 times [2021-08-13 07:43:08,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:08,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930029659] [2021-08-13 07:43:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:09,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:09,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,045 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 07:43:09,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:09,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930029659] [2021-08-13 07:43:09,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930029659] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:09,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:09,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:09,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607962303] [2021-08-13 07:43:09,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:09,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:09,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:09,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:09,055 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:09,056 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 07:43:09,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:09,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:09,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:09,395 INFO L129 PetriNetUnfolder]: 3223/4280 cut-off events. [2021-08-13 07:43:09,396 INFO L130 PetriNetUnfolder]: For 8902/8902 co-relation queries the response was YES. [2021-08-13 07:43:09,417 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 07:43:09,448 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 9 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2021-08-13 07:43:09,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 134 transitions, 703 flow [2021-08-13 07:43:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:09,450 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:09,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:09,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,452 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 07:43:09,453 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 07:43:09,454 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 07:43:09,454 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-08-13 07:43:09,454 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 134 transitions, 703 flow [2021-08-13 07:43:09,455 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 07:43:09,455 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:09,456 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 07:43:09,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 07:43:09,456 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 07:43:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:09,457 INFO L82 PathProgramCache]: Analyzing trace with hash 12595962, now seen corresponding path program 1 times [2021-08-13 07:43:09,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:09,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450454399] [2021-08-13 07:43:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:09,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:09,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,507 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 07:43:09,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:09,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450454399] [2021-08-13 07:43:09,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450454399] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:09,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:09,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:09,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650290074] [2021-08-13 07:43:09,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:09,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:09,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:09,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:09,510 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:09,511 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 07:43:09,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:09,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:09,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:09,643 INFO L129 PetriNetUnfolder]: 1015/1490 cut-off events. [2021-08-13 07:43:09,643 INFO L130 PetriNetUnfolder]: For 4245/4245 co-relation queries the response was YES. [2021-08-13 07:43:09,650 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 07:43:09,659 INFO L132 encePairwiseOnDemand]: 159/168 looper letters, 3 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-08-13 07:43:09,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 126 transitions, 671 flow [2021-08-13 07:43:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:09,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:09,662 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:09,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:09,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,663 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 07:43:09,664 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 07:43:09,665 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 07:43:09,665 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 14 predicate places. [2021-08-13 07:43:09,665 INFO L482 AbstractCegarLoop]: Abstraction has has 93 places, 126 transitions, 671 flow [2021-08-13 07:43:09,666 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 07:43:09,666 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:09,666 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 07:43:09,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 07:43:09,666 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 07:43:09,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:09,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1667527728, now seen corresponding path program 1 times [2021-08-13 07:43:09,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:09,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56404303] [2021-08-13 07:43:09,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:09,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:09,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,710 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 07:43:09,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:09,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56404303] [2021-08-13 07:43:09,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56404303] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:09,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:09,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:09,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059212547] [2021-08-13 07:43:09,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:09,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:09,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:09,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:09,713 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:09,714 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 07:43:09,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:09,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:09,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:09,764 INFO L129 PetriNetUnfolder]: 223/407 cut-off events. [2021-08-13 07:43:09,764 INFO L130 PetriNetUnfolder]: For 1280/1280 co-relation queries the response was YES. [2021-08-13 07:43:09,767 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 07:43:09,769 INFO L132 encePairwiseOnDemand]: 158/168 looper letters, 2 selfloop transitions, 1 changer transitions 0/117 dead transitions. [2021-08-13 07:43:09,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 632 flow [2021-08-13 07:43:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:09,771 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:09,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:09,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,773 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 07:43:09,774 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 07:43:09,774 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 07:43:09,774 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 16 predicate places. [2021-08-13 07:43:09,775 INFO L482 AbstractCegarLoop]: Abstraction has has 95 places, 117 transitions, 632 flow [2021-08-13 07:43:09,775 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 07:43:09,775 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:09,775 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 07:43:09,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 07:43:09,775 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 07:43:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:09,776 INFO L82 PathProgramCache]: Analyzing trace with hash 604395462, now seen corresponding path program 1 times [2021-08-13 07:43:09,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:09,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185269620] [2021-08-13 07:43:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:09,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:09,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,812 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 07:43:09,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:09,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185269620] [2021-08-13 07:43:09,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185269620] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:09,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:09,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:09,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366048762] [2021-08-13 07:43:09,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:09,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:09,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:09,818 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:09,818 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 07:43:09,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:09,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:09,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:09,854 INFO L129 PetriNetUnfolder]: 55/155 cut-off events. [2021-08-13 07:43:09,854 INFO L130 PetriNetUnfolder]: For 412/412 co-relation queries the response was YES. [2021-08-13 07:43:09,855 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 07:43:09,856 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 4 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-08-13 07:43:09,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 110 transitions, 607 flow [2021-08-13 07:43:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:09,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:09,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:09,858 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:09,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:09,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,860 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 07:43:09,861 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 07:43:09,861 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 07:43:09,861 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2021-08-13 07:43:09,861 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 110 transitions, 607 flow [2021-08-13 07:43:09,862 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 07:43:09,862 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:09,862 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 07:43:09,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 07:43:09,862 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 07:43:09,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:09,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1881922806, now seen corresponding path program 1 times [2021-08-13 07:43:09,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:09,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850969547] [2021-08-13 07:43:09,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:09,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:09,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:09,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:09,896 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 07:43:09,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:09,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850969547] [2021-08-13 07:43:09,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850969547] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:09,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:09,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:09,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125117636] [2021-08-13 07:43:09,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:09,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:09,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:09,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:09,901 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 07:43:09,902 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 07:43:09,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:09,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 07:43:09,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:09,925 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-08-13 07:43:09,926 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-08-13 07:43:09,926 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 07:43:09,927 INFO L132 encePairwiseOnDemand]: 157/168 looper letters, 1 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2021-08-13 07:43:09,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 45 transitions, 196 flow [2021-08-13 07:43:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:09,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 07:43:09,929 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:09,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:09,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 07:43:09,930 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 07:43:09,931 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 07:43:09,932 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 07:43:09,932 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2021-08-13 07:43:09,932 INFO L482 AbstractCegarLoop]: Abstraction has has 99 places, 45 transitions, 196 flow [2021-08-13 07:43:09,932 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 07:43:09,932 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:09,932 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 07:43:09,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 07:43:09,933 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 07:43:09,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:09,934 INFO L82 PathProgramCache]: Analyzing trace with hash -302006568, now seen corresponding path program 1 times [2021-08-13 07:43:09,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:09,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063762561] [2021-08-13 07:43:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:10,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:10,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:10,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:10,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:10,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:10,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:10,100 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 07:43:10,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 07:43:10,141 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 07:43:10,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 07:43:10,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-08-13 07:43:10,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-08-13 07:43:10,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-08-13 07:43:10,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-08-13 07:43:10,320 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-08-13 07:43:10,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-08-13 07:43:10,390 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:43:10,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:43:10,449 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:43:10,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:43:10,531 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:43:10,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:43:10,613 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:43:10,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:43:10,674 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 07:43:10,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:10,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063762561] [2021-08-13 07:43:10,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063762561] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:10,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:10,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:43:10,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836696341] [2021-08-13 07:43:10,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:43:10,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:10,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:43:10,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:43:10,684 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:43:10,686 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 07:43:10,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:10,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:43:10,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:12,704 INFO L129 PetriNetUnfolder]: 12291/18851 cut-off events. [2021-08-13 07:43:12,704 INFO L130 PetriNetUnfolder]: For 1100/1100 co-relation queries the response was YES. [2021-08-13 07:43:12,984 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 07:43:13,091 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 65 selfloop transitions, 10 changer transitions 1/109 dead transitions. [2021-08-13 07:43:13,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 476 flow [2021-08-13 07:43:13,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 07:43:13,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 07:43:13,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 07:43:13,096 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 07:43:13,096 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 07:43:13,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 07:43:13,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:13,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 07:43:13,100 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 07:43:13,104 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 07:43:13,104 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 07:43:13,105 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2021-08-13 07:43:13,105 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 476 flow [2021-08-13 07:43:13,105 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 07:43:13,106 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:13,106 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 07:43:13,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 07:43:13,106 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 07:43:13,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:13,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1750664972, now seen corresponding path program 2 times [2021-08-13 07:43:13,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:13,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380721496] [2021-08-13 07:43:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:13,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:13,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:13,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:13,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:13,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:13,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:13,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:43:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:43:13,204 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:43:13,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:43:13,232 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:43:13,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:43:13,262 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:43:13,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:43:13,298 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:43:13,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:43:13,344 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:43:13,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:43:13,406 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:43:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:43:13,473 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 07:43:13,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 07:43:13,542 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:43:13,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:43:13,657 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 07:43:13,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:13,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380721496] [2021-08-13 07:43:13,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380721496] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:13,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:13,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:43:13,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25310608] [2021-08-13 07:43:13,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:43:13,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:13,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:43:13,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:43:13,661 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:43:13,663 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 07:43:13,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:13,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:43:13,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:16,646 INFO L129 PetriNetUnfolder]: 16181/28922 cut-off events. [2021-08-13 07:43:16,646 INFO L130 PetriNetUnfolder]: For 9338/42430 co-relation queries the response was YES. [2021-08-13 07:43:16,921 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 07:43:17,082 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 277 selfloop transitions, 49 changer transitions 4/363 dead transitions. [2021-08-13 07:43:17,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 363 transitions, 2152 flow [2021-08-13 07:43:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 07:43:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 07:43:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 07:43:17,087 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 07:43:17,087 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 07:43:17,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 07:43:17,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:17,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 07:43:17,093 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 07:43:17,097 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 07:43:17,098 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 07:43:17,098 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-08-13 07:43:17,098 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 363 transitions, 2152 flow [2021-08-13 07:43:17,100 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 07:43:17,100 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:17,100 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 07:43:17,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 07:43:17,100 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 07:43:17,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:17,101 INFO L82 PathProgramCache]: Analyzing trace with hash -62375250, now seen corresponding path program 3 times [2021-08-13 07:43:17,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:17,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472299502] [2021-08-13 07:43:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:17,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:17,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:17,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:17,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:17,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:17,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:17,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:43:17,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:43:17,197 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:43:17,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:43:17,223 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:43:17,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:43:17,250 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:43:17,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:43:17,283 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:43:17,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:43:17,325 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:43:17,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:43:17,376 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 07:43:17,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 07:43:17,511 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-08-13 07:43:17,515 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:43:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:43:17,587 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:43:17,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:43:17,653 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 07:43:17,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:17,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472299502] [2021-08-13 07:43:17,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472299502] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:17,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:17,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:43:17,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709838305] [2021-08-13 07:43:17,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:43:17,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:17,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:43:17,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:43:17,656 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:43:17,657 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 07:43:17,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:17,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:43:17,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:22,095 INFO L129 PetriNetUnfolder]: 21639/41196 cut-off events. [2021-08-13 07:43:22,096 INFO L130 PetriNetUnfolder]: For 16701/104129 co-relation queries the response was YES. [2021-08-13 07:43:22,478 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 07:43:22,747 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 858 selfloop transitions, 165 changer transitions 6/1062 dead transitions. [2021-08-13 07:43:22,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 1062 transitions, 8404 flow [2021-08-13 07:43:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 07:43:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 07:43:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 07:43:22,756 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 07:43:22,756 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 07:43:22,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 07:43:22,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:22,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 07:43:22,764 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 07:43:22,771 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 07:43:22,772 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 07:43:22,774 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 56 predicate places. [2021-08-13 07:43:22,774 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 1062 transitions, 8404 flow [2021-08-13 07:43:22,775 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 07:43:22,775 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:22,775 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 07:43:22,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 07:43:22,776 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 07:43:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:22,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1739527962, now seen corresponding path program 4 times [2021-08-13 07:43:22,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:22,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068338018] [2021-08-13 07:43:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:22,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:22,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:22,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:22,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:22,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:22,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:22,877 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:43:22,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:43:22,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:43:22,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:43:22,912 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:43:22,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:43:22,939 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:43:22,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:43:22,973 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:43:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:43:23,015 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 07:43:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 07:43:23,067 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 07:43:23,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 07:43:23,132 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:43:23,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:43:23,348 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:43:23,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:43:23,397 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 07:43:23,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:23,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068338018] [2021-08-13 07:43:23,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068338018] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:23,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:23,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:43:23,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155285126] [2021-08-13 07:43:23,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:43:23,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:23,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:43:23,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:43:23,402 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:43:23,404 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 07:43:23,404 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:23,404 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:43:23,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:32,347 INFO L129 PetriNetUnfolder]: 29265/56405 cut-off events. [2021-08-13 07:43:32,347 INFO L130 PetriNetUnfolder]: For 20749/175063 co-relation queries the response was YES. [2021-08-13 07:43:32,937 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 07:43:33,264 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 2319 selfloop transitions, 503 changer transitions 8/2863 dead transitions. [2021-08-13 07:43:33,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 2863 transitions, 28472 flow [2021-08-13 07:43:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 07:43:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 07:43:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 07:43:33,269 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 07:43:33,269 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 07:43:33,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 07:43:33,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:33,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 07:43:33,275 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 07:43:33,279 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 07:43:33,280 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 07:43:33,280 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 68 predicate places. [2021-08-13 07:43:33,280 INFO L482 AbstractCegarLoop]: Abstraction has has 147 places, 2863 transitions, 28472 flow [2021-08-13 07:43:33,281 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 07:43:33,281 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:33,281 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 07:43:33,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 07:43:33,282 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 07:43:33,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:33,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1784972510, now seen corresponding path program 5 times [2021-08-13 07:43:33,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:33,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752982241] [2021-08-13 07:43:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:33,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:33,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:33,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:33,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:33,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:33,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:33,451 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:43:33,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:43:33,465 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:43:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:43:33,484 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:43:33,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:43:33,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:43:33,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:43:33,544 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 07:43:33,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 07:43:33,584 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 07:43:33,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 07:43:33,640 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 07:43:33,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 07:43:33,705 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:43:33,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:43:33,759 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:43:33,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:43:33,816 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 07:43:33,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:33,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752982241] [2021-08-13 07:43:33,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752982241] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:33,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:33,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:43:33,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081244115] [2021-08-13 07:43:33,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:43:33,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:33,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:43:33,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:43:33,820 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:43:33,821 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 07:43:33,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:33,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:43:33,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:44:16,596 INFO L129 PetriNetUnfolder]: 43326/94365 cut-off events. [2021-08-13 07:44:16,596 INFO L130 PetriNetUnfolder]: For 58009/457239 co-relation queries the response was YES. [2021-08-13 07:44:17,732 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 07:44:18,349 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 5720 selfloop transitions, 1032 changer transitions 10/6795 dead transitions. [2021-08-13 07:44:18,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 6795 transitions, 81316 flow [2021-08-13 07:44:18,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 07:44:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 07:44:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 07:44:18,354 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 07:44:18,354 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 07:44:18,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 07:44:18,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:44:18,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 07:44:18,359 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 07:44:18,363 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 07:44:18,363 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 07:44:18,363 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 80 predicate places. [2021-08-13 07:44:18,364 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 6795 transitions, 81316 flow [2021-08-13 07:44:18,364 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 07:44:18,364 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:44:18,364 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 07:44:18,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 07:44:18,364 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 07:44:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:44:18,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2140238052, now seen corresponding path program 6 times [2021-08-13 07:44:18,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:44:18,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552332416] [2021-08-13 07:44:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:44:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:44:18,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:18,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:44:18,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:18,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:44:18,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:18,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:44:18,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:44:18,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:44:18,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:44:18,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:44:18,461 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:44:18,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:44:18,487 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-08-13 07:44:18,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 07:44:18,519 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 07:44:18,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 07:44:18,568 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 07:44:18,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 07:44:18,608 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 07:44:18,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 07:44:18,670 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:44:18,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:44:18,725 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:44:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:44:18,782 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 07:44:18,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:44:18,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552332416] [2021-08-13 07:44:18,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552332416] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:44:18,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:44:18,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:44:18,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400234684] [2021-08-13 07:44:18,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:44:18,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:44:18,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:44:18,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:44:18,790 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:44:18,792 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 07:44:18,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:44:18,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:44:18,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:48:34,030 INFO L129 PetriNetUnfolder]: 58710/122404 cut-off events. [2021-08-13 07:48:34,031 INFO L130 PetriNetUnfolder]: For 65990/1721086 co-relation queries the response was YES. [2021-08-13 07:48:35,512 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 07:48:36,514 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 12595 selfloop transitions, 2237 changer transitions 12/14877 dead transitions. [2021-08-13 07:48:36,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 14877 transitions, 207988 flow [2021-08-13 07:48:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 07:48:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 07:48:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 07:48:36,518 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 07:48:36,518 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 07:48:36,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 07:48:36,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:48:36,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 07:48:36,523 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 07:48:36,526 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 07:48:36,527 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 07:48:36,527 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 92 predicate places. [2021-08-13 07:48:36,527 INFO L482 AbstractCegarLoop]: Abstraction has has 171 places, 14877 transitions, 207988 flow [2021-08-13 07:48:36,527 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 07:48:36,527 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:48:36,528 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 07:48:36,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 07:48:36,528 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 07:48:36,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:48:36,528 INFO L82 PathProgramCache]: Analyzing trace with hash 935575850, now seen corresponding path program 7 times [2021-08-13 07:48:36,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:48:36,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980526882] [2021-08-13 07:48:36,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:48:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:48:36,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:48:36,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:48:36,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:48:36,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:48:36,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:48:36,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:48:36,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:48:36,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:48:36,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:48:36,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:48:36,624 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 07:48:36,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 07:48:36,653 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-08-13 07:48:36,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 07:48:36,679 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 07:48:36,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 07:48:36,720 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 07:48:36,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 07:48:36,769 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:48:36,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:48:36,819 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:48:36,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:48:36,873 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 07:48:36,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:48:36,917 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 07:48:36,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:48:36,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980526882] [2021-08-13 07:48:36,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980526882] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:48:36,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:48:36,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 07:48:36,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45865799] [2021-08-13 07:48:36,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 07:48:36,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:48:36,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 07:48:36,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 07:48:36,920 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 07:48:36,922 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 07:48:36,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:48:36,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 07:48:36,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-13 07:51:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 07:51:50,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 07:51:50,407 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-13 07:51:50,410 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 07:51:50,412 WARN L188 ceAbstractionStarter]: Timeout [2021-08-13 07:51:50,412 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 07:51:50 BasicIcfg [2021-08-13 07:51:50,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 07:51:50,413 INFO L168 Benchmark]: Toolchain (without parser) took 527622.74 ms. Allocated memory was 175.1 MB in the beginning and 7.7 GB in the end (delta: 7.5 GB). Free memory was 156.1 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 6.9 GB. Max. memory is 8.0 GB. [2021-08-13 07:51:50,413 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 175.1 MB. Free memory is still 157.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 07:51:50,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.96 ms. Allocated memory is still 175.1 MB. Free memory was 156.1 MB in the beginning and 154.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:51:50,413 INFO L168 Benchmark]: Boogie Preprocessor took 13.67 ms. Allocated memory is still 175.1 MB. Free memory was 154.6 MB in the beginning and 153.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:51:50,413 INFO L168 Benchmark]: RCFGBuilder took 265.55 ms. Allocated memory is still 175.1 MB. Free memory was 153.6 MB in the beginning and 140.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-13 07:51:50,414 INFO L168 Benchmark]: TraceAbstraction took 527308.96 ms. Allocated memory was 175.1 MB in the beginning and 7.7 GB in the end (delta: 7.5 GB). Free memory was 139.7 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 6.9 GB. Max. memory is 8.0 GB. [2021-08-13 07:51:50,414 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 0.12 ms. Allocated memory is still 175.1 MB. Free memory is still 157.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.96 ms. Allocated memory is still 175.1 MB. Free memory was 156.1 MB in the beginning and 154.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.67 ms. Allocated memory is still 175.1 MB. Free memory was 154.6 MB in the beginning and 153.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 265.55 ms. Allocated memory is still 175.1 MB. Free memory was 153.6 MB in the beginning and 140.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 527308.96 ms. Allocated memory was 175.1 MB in the beginning and 7.7 GB in the end (delta: 7.5 GB). Free memory was 139.7 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 6.9 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 117690 conditions, 16386 events (10967/16385 cut-off events. For 47161/7024407 co-relation queries the response was YES. Maximal size of possible extension queue 8469. Compared 155131 event pairs, 17 based on Foata normal form. 1664/26040 useless extension candidates. Maximal degree in co-relation 117654. Up to 12140 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: 926.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 527023.7ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 520204.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1413.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 466 SDtfs, 494 SDslu, 550 SDs, 0 SdLazy, 953 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 898.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3150.7ms 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: 35.2ms SsaConstructionTime, 130.2ms SatisfiabilityAnalysisTime, 4086.6ms 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