/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:39:58,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:39:58,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:39:58,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:39:58,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:39:58,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:39:58,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:39:58,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:39:58,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:39:58,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:39:58,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:39:58,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-04-29 03:39:58,507 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:39:58,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:39:58,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:39:58,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:39:58,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:39:58,538 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:39:58,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:39:58,539 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:39:58,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:39:58,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:39:58,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:39:58,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:39:58,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:39:58,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:39:58,540 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:39:58,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:39:58,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:39:58,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:39:58,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:39:58,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:39:58,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:39:58,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:39:58,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:39:58,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:39:58,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:39:58,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:39:58,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:39:58,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:39:58,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:39:58,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:39:58,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:39:58,545 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:39:58,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:39:59,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:39:59,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:39:59,020 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 03:39:59,021 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 03:39:59,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl [2021-04-29 03:39:59,024 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl' [2021-04-29 03:39:59,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:39:59,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 03:39:59,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:59,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:39:59,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:39:59,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:59,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:39:59,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:39:59,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:39:59,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/1) ... [2021-04-29 03:39:59,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:39:59,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:39:59,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:39:59,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:39:59,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (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 [2021-04-29 03:39:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-04-29 03:39:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-04-29 03:39:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:39:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:39:59,270 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:39:59,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:39:59,461 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 03:39:59,463 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:59 BoogieIcfgContainer [2021-04-29 03:39:59,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:39:59,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:39:59,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:39:59,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:39:59,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:39:59" (1/2) ... [2021-04-29 03:39:59,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cb19a1 and model type LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:59, skipping insertion in model container [2021-04-29 03:39:59,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:59" (2/2) ... [2021-04-29 03:39:59,472 INFO L111 eAbstractionObserver]: Analyzing ICFG LBE_bigexample_safe_BA.bpl [2021-04-29 03:39:59,479 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:39:59,483 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-04-29 03:39:59,484 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:39:59,561 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-04-29 03:39:59,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2021-04-29 03:39:59,624 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:39:59,625 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:39:59,625 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:39:59,625 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:39:59,625 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:39:59,625 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:39:59,626 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:39:59,626 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:39:59,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 106 transitions, 280 flow [2021-04-29 03:39:59,805 INFO L129 PetriNetUnfolder]: 17/118 cut-off events. [2021-04-29 03:39:59,805 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 03:39:59,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 118 events. 17/118 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 470 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2021-04-29 03:39:59,817 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 106 transitions, 280 flow [2021-04-29 03:39:59,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 242 flow [2021-04-29 03:39:59,834 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:59,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 97 transitions, 242 flow [2021-04-29 03:39:59,866 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 97 transitions, 242 flow [2021-04-29 03:39:59,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 242 flow [2021-04-29 03:39:59,931 INFO L129 PetriNetUnfolder]: 14/113 cut-off events. [2021-04-29 03:39:59,931 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-04-29 03:39:59,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 113 events. 14/113 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 488 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2021-04-29 03:39:59,944 INFO L146 LiptonReduction]: Number of co-enabled transitions 6536 [2021-04-29 03:40:01,171 INFO L158 LiptonReduction]: Checked pairs total: 9847 [2021-04-29 03:40:01,171 INFO L160 LiptonReduction]: Total number of compositions: 133 [2021-04-29 03:40:01,175 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1342 [2021-04-29 03:40:01,186 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:40:01,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:40:01,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:40:01,188 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:40:01,188 INFO L428 AbstractCegarLoop]: === Iteration 1 === [barErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, barErr6ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3INUSE_VIOLATION, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:40:01,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:40:01,194 INFO L82 PathProgramCache]: Analyzing trace with hash 91141, now seen corresponding path program 1 times [2021-04-29 03:40:01,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:40:01,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578018725] [2021-04-29 03:40:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:40:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:40:01,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:40:01,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:40:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:40:01,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578018725] [2021-04-29 03:40:01,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:40:01,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:40:01,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53013278] [2021-04-29 03:40:01,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-29 03:40:01,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:40:01,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-29 03:40:01,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-29 03:40:01,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 239 [2021-04-29 03:40:01,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 256 flow. Second operand has 2 states, 2 states have (on average 180.5) internal successors, (361), 2 states have internal predecessors, (361), 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) [2021-04-29 03:40:01,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:40:01,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 239 [2021-04-29 03:40:01,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:40:01,378 INFO L129 PetriNetUnfolder]: 14/87 cut-off events. [2021-04-29 03:40:01,378 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-04-29 03:40:01,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 87 events. 14/87 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 395 event pairs, 0 based on Foata normal form. 5/43 useless extension candidates. Maximal degree in co-relation 123. Up to 12 conditions per place. [2021-04-29 03:40:01,381 INFO L132 encePairwiseOnDemand]: 206/239 looper letters, 0 selfloop transitions, 0 changer transitions 0/71 dead transitions. [2021-04-29 03:40:01,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 71 transitions, 190 flow [2021-04-29 03:40:01,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-29 03:40:01,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-04-29 03:40:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 393 transitions. [2021-04-29 03:40:01,399 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8221757322175732 [2021-04-29 03:40:01,400 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 393 transitions. [2021-04-29 03:40:01,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 393 transitions. [2021-04-29 03:40:01,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:40:01,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 393 transitions. [2021-04-29 03:40:01,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.5) internal successors, (393), 2 states have internal predecessors, (393), 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) [2021-04-29 03:40:01,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2021-04-29 03:40:01,419 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2021-04-29 03:40:01,421 INFO L185 Difference]: Start difference. First operand has 108 places, 104 transitions, 256 flow. Second operand 2 states and 393 transitions. [2021-04-29 03:40:01,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 71 transitions, 190 flow [2021-04-29 03:40:01,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 71 transitions, 158 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-04-29 03:40:01,430 INFO L241 Difference]: Finished difference. Result has 68 places, 71 transitions, 158 flow [2021-04-29 03:40:01,432 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=158, PETRI_PLACES=68, PETRI_TRANSITIONS=71} [2021-04-29 03:40:01,433 INFO L343 CegarLoopForPetriNet]: 108 programPoint places, -40 predicate places. [2021-04-29 03:40:01,434 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:40:01,434 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 71 transitions, 158 flow [2021-04-29 03:40:01,434 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 71 transitions, 158 flow [2021-04-29 03:40:01,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 71 transitions, 158 flow [2021-04-29 03:40:01,446 INFO L129 PetriNetUnfolder]: 14/87 cut-off events. [2021-04-29 03:40:01,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:40:01,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 14/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 422 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 60. Up to 12 conditions per place. [2021-04-29 03:40:01,450 INFO L146 LiptonReduction]: Number of co-enabled transitions 3324 [2021-04-29 03:40:01,472 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:40:01,472 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:40:01,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 03:40:01,475 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 158 flow [2021-04-29 03:40:01,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 180.5) internal successors, (361), 2 states have internal predecessors, (361), 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) [2021-04-29 03:40:01,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:40:01,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:40:01,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:40:01,477 INFO L428 AbstractCegarLoop]: === Iteration 2 === [barErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, barErr6ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3INUSE_VIOLATION, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:40:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:40:01,478 INFO L82 PathProgramCache]: Analyzing trace with hash 90989, now seen corresponding path program 1 times [2021-04-29 03:40:01,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:40:01,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278130805] [2021-04-29 03:40:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:40:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:40:01,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:40:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:40:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:40:01,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278130805] [2021-04-29 03:40:01,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:40:01,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:40:01,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33600394] [2021-04-29 03:40:01,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:40:01,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:40:01,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:40:01,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:40:01,506 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 239 [2021-04-29 03:40:01,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 158 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) [2021-04-29 03:40:01,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:40:01,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 239 [2021-04-29 03:40:01,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:40:44,170 INFO L129 PetriNetUnfolder]: 265747/347586 cut-off events. [2021-04-29 03:40:44,171 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:40:44,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 691846 conditions, 347586 events. 265747/347586 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42291. Compared 2629509 event pairs, 265162 based on Foata normal form. 0/54172 useless extension candidates. Maximal degree in co-relation 194350. Up to 344254 conditions per place. [2021-04-29 03:40:44,682 INFO L132 encePairwiseOnDemand]: 233/239 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2021-04-29 03:40:44,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 248 flow [2021-04-29 03:40:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:40:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:40:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2021-04-29 03:40:44,687 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19386331938633194 [2021-04-29 03:40:44,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 139 transitions. [2021-04-29 03:40:44,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 139 transitions. [2021-04-29 03:40:44,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:40:44,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 139 transitions. [2021-04-29 03:40:44,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-04-29 03:40:44,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2021-04-29 03:40:44,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2021-04-29 03:40:44,693 INFO L185 Difference]: Start difference. First operand has 67 places, 71 transitions, 158 flow. Second operand 3 states and 139 transitions. [2021-04-29 03:40:44,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 248 flow [2021-04-29 03:40:44,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 66 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 03:40:44,705 INFO L241 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2021-04-29 03:40:44,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2021-04-29 03:40:44,707 INFO L343 CegarLoopForPetriNet]: 108 programPoint places, -44 predicate places. [2021-04-29 03:40:44,707 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:40:44,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 0 transitions, 0 flow [2021-04-29 03:40:44,712 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 0 transitions, 0 flow [2021-04-29 03:40:44,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:40:44,713 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:40:44,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:40:44,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:40:44,713 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:40:44,714 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:40:44,714 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:40:44,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-04-29 03:40:44,718 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:40:44,718 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) [2021-04-29 03:40:44,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:40:44,726 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:40:44 BasicIcfg [2021-04-29 03:40:44,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:40:44,730 INFO L168 Benchmark]: Toolchain (without parser) took 45670.81 ms. Allocated memory was 306.2 MB in the beginning and 10.7 GB in the end (delta: 10.4 GB). Free memory was 273.5 MB in the beginning and 9.2 GB in the end (delta: -8.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-04-29 03:40:44,732 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.69 ms. Allocated memory is still 306.2 MB. Free memory was 274.5 MB in the beginning and 274.4 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:40:44,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.84 ms. Allocated memory is still 306.2 MB. Free memory was 288.5 MB in the beginning and 287.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:40:44,738 INFO L168 Benchmark]: Boogie Preprocessor took 15.79 ms. Allocated memory is still 306.2 MB. Free memory was 287.0 MB in the beginning and 286.2 MB in the end (delta: 859.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:40:44,738 INFO L168 Benchmark]: RCFGBuilder took 292.11 ms. Allocated memory is still 306.2 MB. Free memory was 286.2 MB in the beginning and 283.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 03:40:44,740 INFO L168 Benchmark]: TraceAbstraction took 45261.02 ms. Allocated memory was 306.2 MB in the beginning and 10.7 GB in the end (delta: 10.4 GB). Free memory was 282.8 MB in the beginning and 9.2 GB in the end (delta: -8.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-04-29 03:40:44,746 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 0.69 ms. Allocated memory is still 306.2 MB. Free memory was 274.5 MB in the beginning and 274.4 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.84 ms. Allocated memory is still 306.2 MB. Free memory was 288.5 MB in the beginning and 287.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.79 ms. Allocated memory is still 306.2 MB. Free memory was 287.0 MB in the beginning and 286.2 MB in the end (delta: 859.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 292.11 ms. Allocated memory is still 306.2 MB. Free memory was 286.2 MB in the beginning and 283.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 45261.02 ms. Allocated memory was 306.2 MB in the beginning and 10.7 GB in the end (delta: 10.4 GB). Free memory was 282.8 MB in the beginning and 9.2 GB in the end (delta: -8.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1305.1ms, 101 PlacesBefore, 108 PlacesAfterwards, 97 TransitionsBefore, 104 TransitionsAfterwards, 6536 CoEnabledTransitionPairs, 5 FixpointIterations, 0 TrivialSequentialCompositions, 133 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 133 TotalNumberOfCompositions, 9847 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9847, positive: 9847, positive conditional: 9847, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2856, positive: 2856, positive conditional: 0, positive unconditional: 2856, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2856, positive: 2856, positive conditional: 0, positive unconditional: 2856, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2856, positive: 2856, positive conditional: 0, positive unconditional: 2856, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9847, positive: 6991, positive conditional: 6991, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2856, unknown conditional: 2856, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2856, Positive cache size: 2856, Positive conditional cache size: 2856, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.8ms, 68 PlacesBefore, 67 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 3324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2856, Positive cache size: 2856, Positive conditional cache size: 2856, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8ms, 64 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2856, Positive cache size: 2856, Positive conditional cache size: 2856, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 43]: 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: 41]: 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: 42]: 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: 35]: 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: 23]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 45106.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 43291.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1558.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 46 SDslu, 0 SDs, 0 SdLazy, 46 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 4.1ms SsaConstructionTime, 13.8ms SatisfiabilityAnalysisTime, 47.6ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...