/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/fork_join_NotMod.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 12:47:24,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 12:47:24,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 12:47:24,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 12:47:24,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf [2021-08-13 12:47:24,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 12:47:24,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 12:47:24,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 12:47:24,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 12:47:24,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 12:47:24,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 12:47:24,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 12:47:24,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 12:47:24,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 12:47:24,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:47:24,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 12:47:24,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 12:47:24,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 12:47:24,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 12:47:24,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 12:47:24,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 12:47:24,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 12:47:24,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 12:47:24,484 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 12:47:24,485 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 12:47:24,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_NotMod.bpl [2021-08-13 12:47:24,486 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_NotMod.bpl' [2021-08-13 12:47:24,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 12:47:24,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 12:47:24,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 12:47:24,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 12:47:24,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 12:47:24,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 12:47:24,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 12:47:24,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 12:47:24,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 12:47:24,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... [2021-08-13 12:47:24,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 12:47:24,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 12:47:24,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 12:47:24,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 12:47:24,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:47:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-08-13 12:47:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-08-13 12:47:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 12:47:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 12:47:24,618 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 12:47:24,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 12:47:24,772 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 12:47:24,774 INFO L202 PluginConnector]: Adding new model fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:47:24 BoogieIcfgContainer [2021-08-13 12:47:24,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 12:47:24,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 12:47:24,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 12:47:24,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 12:47:24,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:24" (1/2) ... [2021-08-13 12:47:24,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d396061 and model type fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:47:24, skipping insertion in model container [2021-08-13 12:47:24,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:47:24" (2/2) ... [2021-08-13 12:47:24,782 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_join_NotMod.bpl [2021-08-13 12:47:24,788 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 12:47:24,789 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-13 12:47:24,790 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 12:47:24,807 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:24,808 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:24,808 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:24,808 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:24,810 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:24,820 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-13 12:47:24,837 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 12:47:24,866 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 12:47:24,866 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 12:47:24,866 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 12:47:24,867 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 12:47:24,867 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 12:47:24,867 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 12:47:24,867 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 12:47:24,867 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 12:47:24,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 16 transitions, 40 flow [2021-08-13 12:47:24,896 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-08-13 12:47:24,896 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 12:47:24,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 15 events. 0/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 12:47:24,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 20 places, 16 transitions, 40 flow [2021-08-13 12:47:24,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 17 places, 13 transitions, 32 flow [2021-08-13 12:47:24,904 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-08-13 12:47:24,904 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 12:47:24,904 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:47:24,905 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-08-13 12:47:24,906 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-08-13 12:47:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:47:24,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1538645, now seen corresponding path program 1 times [2021-08-13 12:47:24,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:47:24,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30012912] [2021-08-13 12:47:24,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:47:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:47:25,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:25,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:47:25,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:47:25,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:47:25,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30012912] [2021-08-13 12:47:25,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30012912] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:47:25,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:47:25,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-13 12:47:25,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160040554] [2021-08-13 12:47:25,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:47:25,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:47:25,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:47:25,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:47:25,090 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 16 [2021-08-13 12:47:25,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:25,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:47:25,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 16 [2021-08-13 12:47:25,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:47:25,130 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-08-13 12:47:25,130 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-13 12:47:25,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 11 events. 0/11 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 5 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-08-13 12:47:25,131 INFO L132 encePairwiseOnDemand]: 13/16 looper letters, 3 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2021-08-13 12:47:25,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 11 transitions, 36 flow [2021-08-13 12:47:25,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:47:25,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:47:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2021-08-13 12:47:25,142 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-08-13 12:47:25,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 36 transitions. [2021-08-13 12:47:25,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 36 transitions. [2021-08-13 12:47:25,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:47:25,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 36 transitions. [2021-08-13 12:47:25,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:25,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 12:47:25,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 12:47:25,167 INFO L348 CegarLoopForPetriNet]: 17 programPoint places, 0 predicate places. [2021-08-13 12:47:25,168 INFO L482 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 36 flow [2021-08-13 12:47:25,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:25,168 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:47:25,168 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-08-13 12:47:25,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 12:47:25,169 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-08-13 12:47:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:47:25,169 INFO L82 PathProgramCache]: Analyzing trace with hash 47698052, now seen corresponding path program 1 times [2021-08-13 12:47:25,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:47:25,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996429431] [2021-08-13 12:47:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:47:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:47:25,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:25,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:47:25,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:25,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 12:47:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:47:25,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:47:25,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996429431] [2021-08-13 12:47:25,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996429431] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:47:25,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:47:25,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 12:47:25,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019669758] [2021-08-13 12:47:25,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:47:25,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:47:25,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:47:25,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:47:25,206 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 16 [2021-08-13 12:47:25,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 11 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:25,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:47:25,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 16 [2021-08-13 12:47:25,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:47:25,221 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-08-13 12:47:25,221 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-08-13 12:47:25,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 9 events. 0/9 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-08-13 12:47:25,222 INFO L132 encePairwiseOnDemand]: 13/16 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2021-08-13 12:47:25,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 9 transitions, 40 flow [2021-08-13 12:47:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:47:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:47:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-08-13 12:47:25,223 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 12:47:25,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 33 transitions. [2021-08-13 12:47:25,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 33 transitions. [2021-08-13 12:47:25,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:47:25,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 33 transitions. [2021-08-13 12:47:25,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:25,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 12:47:25,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 12:47:25,226 INFO L348 CegarLoopForPetriNet]: 17 programPoint places, 0 predicate places. [2021-08-13 12:47:25,226 INFO L482 AbstractCegarLoop]: Abstraction has has 17 places, 9 transitions, 40 flow [2021-08-13 12:47:25,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:25,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 12:47:25,272 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 1522 in 43459834ns [2021-08-13 12:47:25,274 INFO L113 kiGriesValidityCheck]: 10#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,278 INFO L113 kiGriesValidityCheck]: 13#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,281 INFO L113 kiGriesValidityCheck]: 13#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,284 INFO L113 kiGriesValidityCheck]: 3#(and v_np2_1 (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) [2021-08-13 12:47:25,292 INFO L113 kiGriesValidityCheck]: 9#(and (not v_np2_1) (not v_np0_1) v_np8_1 (not v_np11_1) (not v_np14_1) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) [2021-08-13 12:47:25,301 INFO L113 kiGriesValidityCheck]: 8#(and (not v_np2_1) (not v_np8_1) v_np7_1 (not v_np0_1) (not v_np11_1) (not v_np14_1) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np10_1)) [2021-08-13 12:47:25,304 INFO L113 kiGriesValidityCheck]: 7#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,307 INFO L113 kiGriesValidityCheck]: 15#(and (not v_np2_1) v_np14_1 (not v_np8_1) (not v_np0_1) (not v_np11_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) [2021-08-13 12:47:25,313 INFO L113 kiGriesValidityCheck]: 10#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,320 INFO L113 kiGriesValidityCheck]: 1#(or (and (not v_np2_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) v_np0_1 (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,320 INFO L113 kiGriesValidityCheck]: 14#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,320 INFO L113 kiGriesValidityCheck]: 17#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np12_1) v_np0_1 (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) v_np13_1 (= globVar 0) (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,327 INFO L113 kiGriesValidityCheck]: 15#(and (not v_np2_1) v_np14_1 (not v_np8_1) (not v_np0_1) (not v_np11_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) [2021-08-13 12:47:25,334 INFO L113 kiGriesValidityCheck]: 16#(or (and v_np2_1 (not v_np8_1) (not v_np0_1) (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np0_1) v_np8_1 (not v_np11_1) (not v_np14_1) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np10_1 (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np2_1) v_np14_1 (not v_np8_1) (not v_np0_1) (not v_np11_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) v_np7_1 (not v_np0_1) (not v_np11_1) (not v_np14_1) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np10_1))) [2021-08-13 12:47:25,334 INFO L113 kiGriesValidityCheck]: 11#(and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np10_1 (not v_np11_1) (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1)) [2021-08-13 12:47:25,337 INFO L113 kiGriesValidityCheck]: 12#(or (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) v_np12_1 (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) (not v_np0_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) (not v_np7_1) (not v_np10_1)) (and (not v_np2_1) (not v_np8_1) v_np11_1 (not v_np14_1) (= ULTIMATE.start_locVar 7) (= globVar 0) (not v_np12_1) (not v_np13_1) v_np0_1 (not v_np7_1) (not v_np10_1))) [2021-08-13 12:47:25,433 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 163185908ns [2021-08-13 12:47:25,436 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 12:47:25,439 INFO L202 PluginConnector]: Adding new model fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 12:47:25 BasicIcfg [2021-08-13 12:47:25,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 12:47:25,442 INFO L168 Benchmark]: Toolchain (without parser) took 934.28 ms. Allocated memory is still 201.3 MB. Free memory was 182.2 MB in the beginning and 166.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. [2021-08-13 12:47:25,443 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 201.3 MB. Free memory is still 183.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 12:47:25,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.11 ms. Allocated memory is still 201.3 MB. Free memory was 182.2 MB in the beginning and 180.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 12:47:25,445 INFO L168 Benchmark]: Boogie Preprocessor took 14.49 ms. Allocated memory is still 201.3 MB. Free memory was 180.7 MB in the beginning and 179.8 MB in the end (delta: 932.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 12:47:25,446 INFO L168 Benchmark]: RCFGBuilder took 226.23 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 171.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-08-13 12:47:25,447 INFO L168 Benchmark]: TraceAbstraction took 663.08 ms. Allocated memory is still 201.3 MB. Free memory was 170.4 MB in the beginning and 166.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2021-08-13 12:47:25,453 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 0.16 ms. Allocated memory is still 201.3 MB. Free memory is still 183.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.11 ms. Allocated memory is still 201.3 MB. Free memory was 182.2 MB in the beginning and 180.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.49 ms. Allocated memory is still 201.3 MB. Free memory was 180.7 MB in the beginning and 179.8 MB in the end (delta: 932.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 226.23 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 171.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 663.08 ms. Allocated memory is still 201.3 MB. Free memory was 170.4 MB in the beginning and 166.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 27]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 24]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 21 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 374.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 102.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 34.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, InterpolantAutomatonStates: 6, 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: 6.2ms SsaConstructionTime, 15.7ms SatisfiabilityAnalysisTime, 98.7ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...