/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 17:52:32,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 17:52:32,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 17:52:32,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 17:52:32,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl-Hitting.epf [2021-08-13 17:52:32,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 17:52:32,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 17:52:32,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 17:52:32,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 17:52:32,936 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 17:52:32,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 17:52:32,936 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 17:52:32,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 17:52:32,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 17:52:32,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 17:52:32,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 17:52:32,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 17:52:32,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 17:52:32,938 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 17:52:32,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 17:52:32,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 17:52:32,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 17:52:32,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 17:52:32,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 17:52:32,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 17:52:32,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 17:52:32,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 17:52:32,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 17:52:32,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 17:52:32,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 17:52:32,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 17:52:32,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 17:52:32,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 17:52:32,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 17:52:32,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 17:52:32,941 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 17:52:32,941 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 17:52:32,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 17:52:32,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 17:52:33,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 17:52:33,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 17:52:33,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 17:52:33,280 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 17:52:33,281 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 17:52:33,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl [2021-08-13 17:52:33,282 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl' [2021-08-13 17:52:33,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 17:52:33,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 17:52:33,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 17:52:33,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 17:52:33,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 17:52:33,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 17:52:33,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 17:52:33,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 17:52:33,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 17:52:33,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/1) ... [2021-08-13 17:52:33,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 17:52:33,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 17:52:33,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 17:52:33,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 17:52:33,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (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 17:52:33,435 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_y given in one single declaration [2021-08-13 17:52:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure set_y [2021-08-13 17:52:33,435 INFO L138 BoogieDeclarations]: Found implementation of procedure set_y [2021-08-13 17:52:33,435 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x_1 given in one single declaration [2021-08-13 17:52:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure set_x_1 [2021-08-13 17:52:33,436 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x_1 [2021-08-13 17:52:33,436 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x_0 given in one single declaration [2021-08-13 17:52:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure set_x_0 [2021-08-13 17:52:33,436 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x_0 [2021-08-13 17:52:33,436 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 17:52:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 17:52:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 17:52:33,437 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 17:52:33,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 17:52:33,560 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 17:52:33,562 INFO L202 PluginConnector]: Adding new model example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:52:33 BoogieIcfgContainer [2021-08-13 17:52:33,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 17:52:33,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 17:52:33,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 17:52:33,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 17:52:33,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:52:33" (1/2) ... [2021-08-13 17:52:33,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38454 and model type example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:52:33, skipping insertion in model container [2021-08-13 17:52:33,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:52:33" (2/2) ... [2021-08-13 17:52:33,569 INFO L111 eAbstractionObserver]: Analyzing ICFG example_multiple_interleavings.bpl [2021-08-13 17:52:33,573 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 17:52:33,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 17:52:33,575 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 17:52:33,614 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-08-13 17:52:33,633 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 17:52:33,652 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 17:52:33,652 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 17:52:33,652 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 17:52:33,652 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 17:52:33,652 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 17:52:33,652 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 17:52:33,652 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 17:52:33,653 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 17:52:33,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 90 flow [2021-08-13 17:52:33,714 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-08-13 17:52:33,714 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-08-13 17:52:33,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 24 events. 5/24 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2021-08-13 17:52:33,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 90 flow [2021-08-13 17:52:33,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 74 flow [2021-08-13 17:52:33,746 INFO L129 PetriNetUnfolder]: 5/21 cut-off events. [2021-08-13 17:52:33,746 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-08-13 17:52:33,746 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:52:33,747 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 17:52:33,747 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:52:33,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:52:33,752 INFO L82 PathProgramCache]: Analyzing trace with hash -451704694, now seen corresponding path program 1 times [2021-08-13 17:52:33,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:52:33,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120656320] [2021-08-13 17:52:33,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:52:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:52:33,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:33,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:33,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:33,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:52:33,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:33,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:33,929 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 17:52:33,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:52:33,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120656320] [2021-08-13 17:52:33,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120656320] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:52:33,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:52:33,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:52:33,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092208847] [2021-08-13 17:52:33,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:52:33,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:52:33,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:52:33,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:52:33,956 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 24 [2021-08-13 17:52:33,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 17:52:33,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:52:33,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 24 [2021-08-13 17:52:33,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:52:34,000 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-08-13 17:52:34,000 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-08-13 17:52:34,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 19 events. 3/19 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 17. Up to 4 conditions per place. [2021-08-13 17:52:34,002 INFO L132 encePairwiseOnDemand]: 22/24 looper letters, 2 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2021-08-13 17:52:34,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 75 flow [2021-08-13 17:52:34,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:52:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:52:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2021-08-13 17:52:34,011 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-08-13 17:52:34,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 64 transitions. [2021-08-13 17:52:34,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 64 transitions. [2021-08-13 17:52:34,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:52:34,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 64 transitions. [2021-08-13 17:52:34,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 17:52:34,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 17:52:34,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 17:52:34,021 INFO L348 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2021-08-13 17:52:34,021 INFO L482 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 75 flow [2021-08-13 17:52:34,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 17:52:34,021 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:52:34,021 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 17:52:34,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 17:52:34,022 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:52:34,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:52:34,024 INFO L82 PathProgramCache]: Analyzing trace with hash 902635530, now seen corresponding path program 1 times [2021-08-13 17:52:34,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:52:34,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753698425] [2021-08-13 17:52:34,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:52:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:52:34,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:34,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:52:34,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:34,075 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 17:52:34,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:52:34,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753698425] [2021-08-13 17:52:34,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753698425] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:52:34,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:52:34,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:52:34,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289798764] [2021-08-13 17:52:34,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:52:34,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:52:34,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:52:34,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:52:34,079 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 24 [2021-08-13 17:52:34,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 17:52:34,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:52:34,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 24 [2021-08-13 17:52:34,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:52:34,099 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-08-13 17:52:34,100 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-08-13 17:52:34,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 13 events. 0/13 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 2/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 17:52:34,100 INFO L132 encePairwiseOnDemand]: 21/24 looper letters, 1 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2021-08-13 17:52:34,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 13 transitions, 52 flow [2021-08-13 17:52:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:52:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:52:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2021-08-13 17:52:34,103 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-08-13 17:52:34,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 64 transitions. [2021-08-13 17:52:34,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 64 transitions. [2021-08-13 17:52:34,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:52:34,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 64 transitions. [2021-08-13 17:52:34,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 17:52:34,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 17:52:34,109 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 17:52:34,109 INFO L348 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2021-08-13 17:52:34,109 INFO L482 AbstractCegarLoop]: Abstraction has has 27 places, 13 transitions, 52 flow [2021-08-13 17:52:34,109 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 17:52:34,110 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:52:34,110 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 17:52:34,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 17:52:34,110 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:52:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:52:34,111 INFO L82 PathProgramCache]: Analyzing trace with hash -708234034, now seen corresponding path program 1 times [2021-08-13 17:52:34,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:52:34,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776438151] [2021-08-13 17:52:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:52:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:52:34,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:34,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:52:34,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:52:34,177 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 17:52:34,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:52:34,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776438151] [2021-08-13 17:52:34,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776438151] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:52:34,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:52:34,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:52:34,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191163333] [2021-08-13 17:52:34,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 17:52:34,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:52:34,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 17:52:34,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-13 17:52:34,184 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 24 [2021-08-13 17:52:34,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 13 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:52:34,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 24 [2021-08-13 17:52:34,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:52:34,221 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2021-08-13 17:52:34,221 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-08-13 17:52:34,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 34 events. 4/34 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 95 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 49. Up to 8 conditions per place. [2021-08-13 17:52:34,222 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 4 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2021-08-13 17:52:34,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 16 transitions, 72 flow [2021-08-13 17:52:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 17:52:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 17:52:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-08-13 17:52:34,228 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-08-13 17:52:34,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:52:34,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 17:52:34,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,231 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,231 INFO L348 CegarLoopForPetriNet]: 23 programPoint places, 7 predicate places. [2021-08-13 17:52:34,231 INFO L482 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 72 flow [2021-08-13 17:52:34,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,231 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:52:34,231 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 17:52:34,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 17:52:34,232 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:52:34,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:52:34,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1242888204, now seen corresponding path program 2 times [2021-08-13 17:52:34,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:52:34,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075646106] [2021-08-13 17:52:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:52:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:52:34,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:34,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:52:34,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:52:34,289 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 17:52:34,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:52:34,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075646106] [2021-08-13 17:52:34,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075646106] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:52:34,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:52:34,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:52:34,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749685891] [2021-08-13 17:52:34,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 17:52:34,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:52:34,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 17:52:34,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-13 17:52:34,292 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 24 [2021-08-13 17:52:34,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:52:34,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 24 [2021-08-13 17:52:34,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:52:34,325 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-08-13 17:52:34,325 INFO L130 PetriNetUnfolder]: For 31/37 co-relation queries the response was YES. [2021-08-13 17:52:34,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 39 events. 3/39 cut-off events. For 31/37 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 135 event pairs, 0 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 70. Up to 10 conditions per place. [2021-08-13 17:52:34,326 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 2 selfloop transitions, 6 changer transitions 2/19 dead transitions. [2021-08-13 17:52:34,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 104 flow [2021-08-13 17:52:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 17:52:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 17:52:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-08-13 17:52:34,329 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-08-13 17:52:34,330 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:52:34,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 17:52:34,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,331 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,331 INFO L348 CegarLoopForPetriNet]: 23 programPoint places, 10 predicate places. [2021-08-13 17:52:34,331 INFO L482 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 104 flow [2021-08-13 17:52:34,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,332 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:52:34,332 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 17:52:34,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 17:52:34,332 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:52:34,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:52:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash -748011108, now seen corresponding path program 3 times [2021-08-13 17:52:34,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:52:34,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37641201] [2021-08-13 17:52:34,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:52:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:52:34,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:34,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 17:52:34,352 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-08-13 17:52:34,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:52:34,359 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 17:52:34,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:52:34,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37641201] [2021-08-13 17:52:34,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37641201] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:52:34,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:52:34,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:52:34,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225863109] [2021-08-13 17:52:34,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 17:52:34,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:52:34,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 17:52:34,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-13 17:52:34,362 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 24 [2021-08-13 17:52:34,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:52:34,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 24 [2021-08-13 17:52:34,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:52:34,391 INFO L129 PetriNetUnfolder]: 2/44 cut-off events. [2021-08-13 17:52:34,391 INFO L130 PetriNetUnfolder]: For 51/63 co-relation queries the response was YES. [2021-08-13 17:52:34,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 44 events. 2/44 cut-off events. For 51/63 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 177 event pairs, 0 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 93. Up to 10 conditions per place. [2021-08-13 17:52:34,392 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 5 selfloop transitions, 2 changer transitions 7/23 dead transitions. [2021-08-13 17:52:34,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 23 transitions, 156 flow [2021-08-13 17:52:34,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 17:52:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 17:52:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-08-13 17:52:34,397 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-08-13 17:52:34,397 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:52:34,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-08-13 17:52:34,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 17:52:34,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,399 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,399 INFO L348 CegarLoopForPetriNet]: 23 programPoint places, 13 predicate places. [2021-08-13 17:52:34,399 INFO L482 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 156 flow [2021-08-13 17:52:34,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,400 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:52:34,400 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 17:52:34,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 17:52:34,400 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:52:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:52:34,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1980678820, now seen corresponding path program 4 times [2021-08-13 17:52:34,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:52:34,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844932166] [2021-08-13 17:52:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:52:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:52:34,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:52:34,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:52:34,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:52:34,417 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-08-13 17:52:34,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:52:34,424 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 17:52:34,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:52:34,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844932166] [2021-08-13 17:52:34,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844932166] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:52:34,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:52:34,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:52:34,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662037428] [2021-08-13 17:52:34,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 17:52:34,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:52:34,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 17:52:34,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-13 17:52:34,427 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 24 [2021-08-13 17:52:34,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:52:34,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 24 [2021-08-13 17:52:34,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:52:34,441 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-08-13 17:52:34,441 INFO L130 PetriNetUnfolder]: For 68/89 co-relation queries the response was YES. [2021-08-13 17:52:34,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 43 events. 2/43 cut-off events. For 68/89 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 178 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 108. Up to 9 conditions per place. [2021-08-13 17:52:34,442 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-08-13 17:52:34,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 22 transitions, 174 flow [2021-08-13 17:52:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 17:52:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 17:52:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2021-08-13 17:52:34,443 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2021-08-13 17:52:34,443 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 83 transitions. [2021-08-13 17:52:34,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 83 transitions. [2021-08-13 17:52:34,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:52:34,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 83 transitions. [2021-08-13 17:52:34,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 17:52:34,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,449 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 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 17:52:34,449 INFO L348 CegarLoopForPetriNet]: 23 programPoint places, 15 predicate places. [2021-08-13 17:52:34,449 INFO L482 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 174 flow [2021-08-13 17:52:34,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 17:52:34,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 17:53:02,343 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 4769 in 27890879865ns [2021-08-13 17:53:02,346 INFO L113 kiGriesValidityCheck]: 12#(or (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 (not v_np9_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 (not v_np9_1) v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 (not v_np9_1) v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 (not v_np9_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np2_1 (not v_np9_1) v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0))) [2021-08-13 17:53:02,346 INFO L113 kiGriesValidityCheck]: 6#(or (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0))) [2021-08-13 17:53:02,347 INFO L113 kiGriesValidityCheck]: 23#(or (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 (not v_np9_1) v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1)) (and v_np4_1 (not v_np2_1) (not v_np9_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 (not v_np9_1) v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 (not v_np9_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) v_np9_1 (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np2_1 (not v_np9_1) v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) v_np9_1 (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np4_1 (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 (not v_np9_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np2_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) v_np9_1 (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 v_np2_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np12_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 v_np11_1 (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np11_1 (not v_np1_1) (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) v_np9_1 (= x 0) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np11_1 (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np13_1) (not v_np4_1) (= y 0)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (= y 0))) [2021-08-13 17:53:02,354 INFO L113 kiGriesValidityCheck]: 5#(or (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np2_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) v_np9_1 (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1)) (and (not v_np15_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np1_1 v_np2_1 v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) (not v_np6_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1)) (and v_np4_1 (not v_np2_1) (not v_np9_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np11_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np12_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (<= 3 set_yThread1of1ForFork2_thidvar0) (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (= x 1) (not v_np7_1) v_np4_1 (not v_np9_1) (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) v_np9_1 (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np4_1 (not v_np11_1) (not v_np1_1) v_np12_1 (not v_np6_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (<= 3 set_yThread1of1ForFork2_thidvar0) (= x 0) v_np9_1 (<= 2 set_x_1Thread1of1ForFork1_thidvar0) (not v_np7_1) v_np1_1 v_np4_1 (not v_np11_1) (not v_np6_1) (not v_np12_1) (not v_np13_1))) [2021-08-13 17:53:02,373 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 32435323ns [2021-08-13 17:53:02,374 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Invalid Owicki-Gries annotation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-13 17:53:02,377 INFO L168 Benchmark]: Toolchain (without parser) took 29059.74 ms. Allocated memory was 177.2 MB in the beginning and 369.1 MB in the end (delta: 191.9 MB). Free memory was 157.5 MB in the beginning and 252.0 MB in the end (delta: -94.6 MB). Peak memory consumption was 97.3 MB. Max. memory is 8.0 GB. [2021-08-13 17:53:02,377 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 177.2 MB. Free memory is still 158.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 17:53:02,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.39 ms. Allocated memory is still 177.2 MB. Free memory was 157.5 MB in the beginning and 155.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 17:53:02,378 INFO L168 Benchmark]: Boogie Preprocessor took 15.06 ms. Allocated memory is still 177.2 MB. Free memory was 155.9 MB in the beginning and 155.1 MB in the end (delta: 847.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 17:53:02,379 INFO L168 Benchmark]: RCFGBuilder took 196.91 ms. Allocated memory is still 177.2 MB. Free memory was 155.1 MB in the beginning and 146.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-08-13 17:53:02,379 INFO L168 Benchmark]: TraceAbstraction took 28812.39 ms. Allocated memory was 177.2 MB in the beginning and 369.1 MB in the end (delta: 191.9 MB). Free memory was 145.7 MB in the beginning and 252.0 MB in the end (delta: -106.3 MB). Peak memory consumption was 85.7 MB. Max. memory is 8.0 GB. [2021-08-13 17:53:02,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 177.2 MB. Free memory is still 158.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.39 ms. Allocated memory is still 177.2 MB. Free memory was 157.5 MB in the beginning and 155.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.06 ms. Allocated memory is still 177.2 MB. Free memory was 155.9 MB in the beginning and 155.1 MB in the end (delta: 847.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 196.91 ms. Allocated memory is still 177.2 MB. Free memory was 155.1 MB in the beginning and 146.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28812.39 ms. Allocated memory was 177.2 MB in the beginning and 369.1 MB in the end (delta: 191.9 MB). Free memory was 145.7 MB in the beginning and 252.0 MB in the end (delta: -106.3 MB). Peak memory consumption was 85.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Invalid Owicki-Gries annotation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Invalid Owicki-Gries annotation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...