/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:30:05,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:30:05,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:30:05,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:30:05,565 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-FA-NoLbe.epf [2021-06-05 20:30:05,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:30:05,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:30:05,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:30:05,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:30:05,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:30:05,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:30:05,604 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:30:05,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:30:05,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:30:05,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:30:05,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:30:05,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:30:05,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:30:05,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:30:05,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:30:05,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:30:05,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:30:05,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:30:05,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:30:05,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:30:05,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:30:05,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:30:05,608 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:30:05,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:30:05,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:30:05,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:30:05,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:30:05,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:30:05,973 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 20:30:05,974 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 20:30:05,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl [2021-06-05 20:30:05,975 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl' [2021-06-05 20:30:06,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:30:06,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 20:30:06,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:30:06,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:30:06,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:30:06,019 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 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,026 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 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:30:06,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:30:06,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:30:06,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:30:06,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/1) ... [2021-06-05 20:30:06,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:30:06,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:30:06,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:30:06,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:30:06,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (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 [2021-06-05 20:30:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 20:30:06,121 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 20:30:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:30:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:30:06,123 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:30:06,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:30:06,352 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 20:30:06,353 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:30:06 BoogieIcfgContainer [2021-06-05 20:30:06,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:30:06,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:30:06,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:30:06,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:30:06,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 08:30:06" (1/2) ... [2021-06-05 20:30:06,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a621b5e and model type LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:30:06, skipping insertion in model container [2021-06-05 20:30:06,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:30:06" (2/2) ... [2021-06-05 20:30:06,359 INFO L111 eAbstractionObserver]: Analyzing ICFG LBE_bigexample_safe.bpl [2021-06-05 20:30:06,363 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:30:06,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:30:06,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-06-05 20:30:06,364 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:30:06,471 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-06-05 20:30:06,491 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:30:06,522 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:06,523 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:06,523 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:06,523 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:06,523 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:06,523 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:06,523 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:06,523 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork1======== [2021-06-05 20:30:06,545 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-06-05 20:30:13,534 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-06-05 20:30:13,773 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:13,774 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-06-05 20:30:13,774 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:13,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:13,789 INFO L82 PathProgramCache]: Analyzing trace with hash 3466716, now seen corresponding path program 1 times [2021-06-05 20:30:13,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:13,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700959581] [2021-06-05 20:30:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:13,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:13,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700959581] [2021-06-05 20:30:13,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700959581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:13,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:13,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-05 20:30:13,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178449346] [2021-06-05 20:30:13,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:13,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:13,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:13,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:14,005 INFO L87 Difference]: Start difference. First operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-06-05 20:30:14,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:14,377 INFO L93 Difference]: Finished difference Result 5832 states and 22738 transitions. [2021-06-05 20:30:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:14,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-06-05 20:30:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:14,383 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 20:30:14,383 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:30:14,384 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:30:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:30:14,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:30:14,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:30:14,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-06-05 20:30:14,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:14,403 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:30:14,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-06-05 20:30:14,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:30:14,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:14,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:30:14,404 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork1 was SAFE (1/6) [2021-06-05 20:30:14,405 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:30:14,407 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:14,407 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:14,407 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:14,407 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:14,407 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:14,407 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:14,407 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:14,408 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork0======== [2021-06-05 20:30:14,411 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-06-05 20:30:20,571 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:20,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-06-05 20:30:20,639 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:20,639 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-06-05 20:30:20,640 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr1ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:20,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:20,641 INFO L82 PathProgramCache]: Analyzing trace with hash 111808, now seen corresponding path program 1 times [2021-06-05 20:30:20,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:20,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888219826] [2021-06-05 20:30:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:20,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:20,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888219826] [2021-06-05 20:30:20,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888219826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:20,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:20,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-05 20:30:20,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689443070] [2021-06-05 20:30:20,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:20,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:20,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:20,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:20,717 INFO L87 Difference]: Start difference. First operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-06-05 20:30:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:20,948 INFO L93 Difference]: Finished difference Result 5832 states and 22738 transitions. [2021-06-05 20:30:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:20,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2021-06-05 20:30:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:20,949 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 20:30:20,949 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:30:20,949 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:20,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:30:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:30:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:30:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:30:20,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-06-05 20:30:20,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:20,951 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:30:20,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-06-05 20:30:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:30:20,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:20,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:30:20,953 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork0 was SAFE (2/6) [2021-06-05 20:30:20,954 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:30:20,957 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:20,957 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:20,957 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:20,957 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:20,957 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:20,957 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:20,957 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:20,958 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == foo======== [2021-06-05 20:30:20,967 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-06-05 20:30:26,778 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:27,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:27,253 INFO L301 ceAbstractionStarter]: Result for error location foo was SAFE (3/6) [2021-06-05 20:30:27,253 INFO L255 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-06-05 20:30:27,254 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:27,254 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:27,255 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:27,255 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:27,256 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:27,258 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:27,259 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:27,259 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:30:27,262 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-06-05 20:30:33,340 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:33,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:33,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-06-05 20:30:33,406 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:33,406 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-05 20:30:33,406 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr18ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr17ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr16ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr19ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr14ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr12ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr13ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONASSERT, ULTIMATE.startErr11ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:33,407 INFO L82 PathProgramCache]: Analyzing trace with hash -963424887, now seen corresponding path program 1 times [2021-06-05 20:30:33,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:33,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313552201] [2021-06-05 20:30:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:33,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:33,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313552201] [2021-06-05 20:30:33,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313552201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:33,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:33,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-05 20:30:33,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566263334] [2021-06-05 20:30:33,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:33,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:33,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:33,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:33,541 INFO L87 Difference]: Start difference. First operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-06-05 20:30:33,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:33,718 INFO L93 Difference]: Finished difference Result 5832 states and 22738 transitions. [2021-06-05 20:30:33,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:33,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2021-06-05 20:30:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:33,718 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 20:30:33,719 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:30:33,719 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:33,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:30:33,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:30:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:30:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:30:33,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-06-05 20:30:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:33,720 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:30:33,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-06-05 20:30:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:30:33,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:33,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:30:33,720 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/6) [2021-06-05 20:30:33,721 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:30:33,722 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:33,722 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:33,722 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:33,722 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:33,722 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:33,722 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:33,722 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:33,722 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork3======== [2021-06-05 20:30:33,726 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-06-05 20:30:39,722 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:39,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-06-05 20:30:39,793 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:39,793 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-05 20:30:39,793 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr1ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:39,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:39,794 INFO L82 PathProgramCache]: Analyzing trace with hash -963424828, now seen corresponding path program 1 times [2021-06-05 20:30:39,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:39,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576876637] [2021-06-05 20:30:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:39,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:39,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576876637] [2021-06-05 20:30:39,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576876637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:39,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:39,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-05 20:30:39,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246452720] [2021-06-05 20:30:39,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:39,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:39,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:39,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:39,888 INFO L87 Difference]: Start difference. First operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-06-05 20:30:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:40,029 INFO L93 Difference]: Finished difference Result 5832 states and 22738 transitions. [2021-06-05 20:30:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:40,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2021-06-05 20:30:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:40,030 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 20:30:40,030 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:30:40,031 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:40,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:30:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:30:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:30:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:30:40,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-06-05 20:30:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:40,032 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:30:40,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-06-05 20:30:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:30:40,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:40,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:30:40,033 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork3 was SAFE (5/6) [2021-06-05 20:30:40,033 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:30:40,034 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:30:40,034 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:30:40,034 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:30:40,034 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:30:40,034 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:30:40,034 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:30:40,035 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:30:40,035 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork2======== [2021-06-05 20:30:40,036 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-06-05 20:30:45,635 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) [2021-06-05 20:30:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-06-05 20:30:45,704 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:30:45,704 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-06-05 20:30:45,704 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:30:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:30:45,704 INFO L82 PathProgramCache]: Analyzing trace with hash 107469096, now seen corresponding path program 1 times [2021-06-05 20:30:45,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:30:45,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499732477] [2021-06-05 20:30:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:30:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:30:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:30:45,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:30:45,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499732477] [2021-06-05 20:30:45,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499732477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:30:45,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:30:45,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-05 20:30:45,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706585460] [2021-06-05 20:30:45,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:30:45,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:30:45,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:30:45,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:45,910 INFO L87 Difference]: Start difference. First operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-06-05 20:30:46,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:30:46,044 INFO L93 Difference]: Finished difference Result 5832 states and 22738 transitions. [2021-06-05 20:30:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:30:46,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2021-06-05 20:30:46,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:30:46,045 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 20:30:46,045 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:30:46,045 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:30:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:30:46,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:30:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:30:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:30:46,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-06-05 20:30:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:30:46,046 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:30:46,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-06-05 20:30:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:30:46,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:30:46,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:30:46,047 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork2 was SAFE (6/6) [2021-06-05 20:30:46,047 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:30:46,050 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:30:46 BasicIcfg [2021-06-05 20:30:46,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:30:46,052 INFO L168 Benchmark]: Toolchain (without parser) took 40045.41 ms. Allocated memory was 381.7 MB in the beginning and 7.6 GB in the end (delta: 7.2 GB). Free memory was 361.5 MB in the beginning and 6.6 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.0 GB. [2021-06-05 20:30:46,052 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 381.7 MB. Free memory was 362.5 MB in the beginning and 362.5 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:30:46,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.43 ms. Allocated memory is still 381.7 MB. Free memory was 361.4 MB in the beginning and 359.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:46,053 INFO L168 Benchmark]: Boogie Preprocessor took 15.63 ms. Allocated memory is still 381.7 MB. Free memory was 359.9 MB in the beginning and 359.1 MB in the end (delta: 841.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:46,054 INFO L168 Benchmark]: RCFGBuilder took 301.27 ms. Allocated memory is still 381.7 MB. Free memory was 359.0 MB in the beginning and 346.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:46,054 INFO L168 Benchmark]: TraceAbstraction took 39696.13 ms. Allocated memory was 381.7 MB in the beginning and 7.6 GB in the end (delta: 7.2 GB). Free memory was 346.4 MB in the beginning and 6.6 GB in the end (delta: -6.3 GB). Peak memory consumption was 995.5 MB. Max. memory is 16.0 GB. [2021-06-05 20:30:46,056 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 381.7 MB. Free memory was 362.5 MB in the beginning and 362.5 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.43 ms. Allocated memory is still 381.7 MB. Free memory was 361.4 MB in the beginning and 359.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.63 ms. Allocated memory is still 381.7 MB. Free memory was 359.9 MB in the beginning and 359.1 MB in the end (delta: 841.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 301.27 ms. Allocated memory is still 381.7 MB. Free memory was 359.0 MB in the beginning and 346.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 39696.13 ms. Allocated memory was 381.7 MB in the beginning and 7.6 GB in the end (delta: 7.2 GB). Free memory was 346.4 MB in the beginning and 6.6 GB in the end (delta: -6.3 GB). Peak memory consumption was 995.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 53]: 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork1 with 1 thread instances CFG has 6 procedures, 85 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7883.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 238.9ms, AutomataDifference: 480.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7011.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 51 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 90.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred 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: 7.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.9ms SsaConstructionTime, 10.4ms SatisfiabilityAnalysisTime, 41.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork0 with 1 thread instances CFG has 6 procedures, 85 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6545.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 68.2ms, AutomataDifference: 298.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6163.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 52 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred 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: 1.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4ms SsaConstructionTime, 1.0ms SatisfiabilityAnalysisTime, 4.9ms 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: foo with 1 thread instances CFG has 6 procedures, 85 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6295.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 472.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5821.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 6 procedures, 85 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6465.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 65.0ms, AutomataDifference: 261.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6081.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 49 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred 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: 0.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8ms SsaConstructionTime, 10.2ms SatisfiabilityAnalysisTime, 26.7ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork3 with 1 thread instances CFG has 6 procedures, 85 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6311.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 70.7ms, AutomataDifference: 214.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5999.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 49 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred 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: 0.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5ms SsaConstructionTime, 4.5ms SatisfiabilityAnalysisTime, 9.8ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork2 with 1 thread instances CFG has 6 procedures, 85 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6012.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 68.3ms, AutomataDifference: 326.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5600.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 50 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred 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: 0.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3ms SsaConstructionTime, 1.2ms SatisfiabilityAnalysisTime, 10.2ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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 - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...