/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:25:56,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:25:56,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:25:56,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 04:25:56,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:25:56,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:25:56,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:25:56,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 04:25:56,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:25:56,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:25:56,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:25:56,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:25:56,508 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:25:56,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:25:56,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:25:56,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:25:56,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:25:56,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:25:56,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:25:56,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:25:56,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:25:56,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:25:56,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:25:56,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:56,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:25:56,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:25:56,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:25:56,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:25:56,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:25:56,511 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:25:56,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:25:56,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:25:56,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:25:56,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:25:56,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:25:56,786 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 04:25:56,787 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 04:25:56,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl [2021-03-11 04:25:56,795 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl' [2021-03-11 04:25:56,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:25:56,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 04:25:56,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:56,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:25:56,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:25:56,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:56,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:25:56,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:25:56,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:25:56,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... [2021-03-11 04:25:56,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:25:56,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:25:56,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:25:56,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:25:56,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-11 04:25:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-11 04:25:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:25:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:25:56,931 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:25:57,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:25:57,063 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 04:25:57,064 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:57 BoogieIcfgContainer [2021-03-11 04:25:57,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:25:57,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:25:57,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:25:57,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:25:57,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:25:56" (1/2) ... [2021-03-11 04:25:57,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2937ea4d and model type LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:57, skipping insertion in model container [2021-03-11 04:25:57,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:57" (2/2) ... [2021-03-11 04:25:57,095 INFO L111 eAbstractionObserver]: Analyzing ICFG LBE_bigexample_safe.bpl [2021-03-11 04:25:57,099 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:25:57,101 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2021-03-11 04:25:57,102 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:25:57,171 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-11 04:25:57,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-03-11 04:25:57,201 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:25:57,201 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:25:57,201 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:25:57,202 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:25:57,202 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:25:57,202 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:25:57,202 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:25:57,202 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:25:57,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 86 transitions, 240 flow [2021-03-11 04:25:57,254 INFO L129 PetriNetUnfolder]: 17/98 cut-off events. [2021-03-11 04:25:57,254 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-11 04:25:57,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 98 events. 17/98 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 198 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 93. Up to 12 conditions per place. [2021-03-11 04:25:57,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 86 transitions, 240 flow [2021-03-11 04:25:57,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 77 transitions, 202 flow [2021-03-11 04:25:57,265 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-03-11 04:25:57,266 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:57,266 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:57,266 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-11 04:25:57,267 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr17ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr19ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr13ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr11ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr18ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr16ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr14ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:57,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash 111808, now seen corresponding path program 1 times [2021-03-11 04:25:57,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:57,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876358941] [2021-03-11 04:25:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:57,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:57,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876358941] [2021-03-11 04:25:57,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:57,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 04:25:57,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160634914] [2021-03-11 04:25:57,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:25:57,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:57,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:25:57,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:25:57,387 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 86 [2021-03-11 04:25:57,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:57,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:57,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 86 [2021-03-11 04:25:57,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:58,121 INFO L129 PetriNetUnfolder]: 4534/6538 cut-off events. [2021-03-11 04:25:58,121 INFO L130 PetriNetUnfolder]: For 252/252 co-relation queries the response was YES. [2021-03-11 04:25:58,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12961 conditions, 6538 events. 4534/6538 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 28053 event pairs, 4456 based on Foata normal form. 0/6522 useless extension candidates. Maximal degree in co-relation 12734. Up to 6157 conditions per place. [2021-03-11 04:25:58,138 INFO L132 encePairwiseOnDemand]: 57/86 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2021-03-11 04:25:58,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 204 flow [2021-03-11 04:25:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:25:58,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:25:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2021-03-11 04:25:58,147 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2021-03-11 04:25:58,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 144 transitions. [2021-03-11 04:25:58,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 144 transitions. [2021-03-11 04:25:58,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:58,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 144 transitions. [2021-03-11 04:25:58,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:58,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:58,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:58,157 INFO L185 Difference]: Start difference. First operand has 81 places, 77 transitions, 202 flow. Second operand 3 states and 144 transitions. [2021-03-11 04:25:58,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 204 flow [2021-03-11 04:25:58,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 172 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-11 04:25:58,173 INFO L241 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-03-11 04:25:58,174 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-03-11 04:25:58,175 INFO L335 CegarLoopForPetriNet]: 81 programPoint places, -34 predicate places. [2021-03-11 04:25:58,175 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2021-03-11 04:25:58,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:58,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:25:58,180 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:25:58 BasicIcfg [2021-03-11 04:25:58,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 04:25:58,181 INFO L168 Benchmark]: Toolchain (without parser) took 1354.80 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 237.0 MB in the beginning and 285.9 MB in the end (delta: -48.9 MB). Peak memory consumption was 80.5 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:58,182 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:58,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.89 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:58,183 INFO L168 Benchmark]: Boogie Preprocessor took 10.64 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.1 MB in the end (delta: 809.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:58,183 INFO L168 Benchmark]: RCFGBuilder took 200.55 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 240.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:58,184 INFO L168 Benchmark]: TraceAbstraction took 1114.06 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 240.2 MB in the beginning and 285.9 MB in the end (delta: -45.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:58,186 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 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.89 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.64 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.1 MB in the end (delta: 809.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 200.55 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 240.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1114.06 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 240.2 MB in the beginning and 285.9 MB in the end (delta: -45.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 52]: 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 - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 26]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 39]: 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: 38]: 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: 41]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 22]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 34]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 30]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 977.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 800.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 28 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 2.6ms SsaConstructionTime, 7.5ms SatisfiabilityAnalysisTime, 31.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...