/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/regression/fork_multiple_parameter.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 03:20:33,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:20:33,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:20:33,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 03:20:33,498 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 03:20:33,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:20:33,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:20:33,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:20:33,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:20:33,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:20:33,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:20:33,531 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:20:33,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:20:33,531 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:20:33,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:20:33,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:20:33,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:20:33,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:20:33,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:20:33,534 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:20:33,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:20:33,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:20:33,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:20:33,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:20:33,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:20:33,794 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 03:20:33,795 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 03:20:33,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_multiple_parameter.bpl [2021-06-05 03:20:33,796 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_multiple_parameter.bpl' [2021-06-05 03:20:33,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:20:33,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 03:20:33,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:20:33,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:20:33,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:20:33,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:20:33,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:20:33,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:20:33,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:20:33,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... [2021-06-05 03:20:33,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:20:33,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:20:33,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:20:33,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:20:33,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:20:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure add [2021-06-05 03:20:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure add [2021-06-05 03:20:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:20:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:20:33,939 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 03:20:34,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:20:34,064 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 03:20:34,065 INFO L202 PluginConnector]: Adding new model fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:20:34 BoogieIcfgContainer [2021-06-05 03:20:34,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:20:34,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:20:34,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:20:34,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:20:34,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:33" (1/2) ... [2021-06-05 03:20:34,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1e30f4 and model type fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:20:34, skipping insertion in model container [2021-06-05 03:20:34,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:20:34" (2/2) ... [2021-06-05 03:20:34,072 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_multiple_parameter.bpl [2021-06-05 03:20:34,079 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:20:34,079 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:20:34,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-05 03:20:34,080 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:20:34,101 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,102 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,103 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,104 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,104 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,105 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,105 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_sum not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,105 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,105 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_num2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,106 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_sum not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,108 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_sum not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:34,117 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 03:20:34,134 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 03:20:34,157 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:20:34,157 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:20:34,157 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:20:34,157 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:20:34,157 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:20:34,157 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:20:34,157 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:20:34,157 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:20:34,164 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 13 transitions, 34 flow [2021-06-05 03:20:34,171 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 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 03:20:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 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 03:20:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-06-05 03:20:34,177 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:34,177 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-06-05 03:20:34,177 INFO L430 AbstractCegarLoop]: === Iteration 1 === [addErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:34,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:34,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1444345, now seen corresponding path program 1 times [2021-06-05 03:20:34,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:34,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695714669] [2021-06-05 03:20:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:34,375 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 03:20:34,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:34,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695714669] [2021-06-05 03:20:34,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695714669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:34,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:34,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 03:20:34,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022471681] [2021-06-05 03:20:34,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 03:20:34,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:34,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 03:20:34,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 03:20:34,388 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 03:20:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:34,446 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-06-05 03:20:34,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 03:20:34,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 03:20:34,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:34,452 INFO L225 Difference]: With dead ends: 15 [2021-06-05 03:20:34,452 INFO L226 Difference]: Without dead ends: 13 [2021-06-05 03:20:34,453 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:20:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-06-05 03:20:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-06-05 03:20:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 03:20:34,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-06-05 03:20:34,471 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2021-06-05 03:20:34,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:34,471 INFO L482 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-06-05 03:20:34,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 03:20:34,471 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-06-05 03:20:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-06-05 03:20:34,471 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:34,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:34,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:20:34,472 INFO L430 AbstractCegarLoop]: === Iteration 2 === [addErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:34,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:34,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1520564376, now seen corresponding path program 1 times [2021-06-05 03:20:34,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:34,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530399590] [2021-06-05 03:20:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:34,544 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 03:20:34,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:34,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530399590] [2021-06-05 03:20:34,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530399590] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:34,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:34,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 03:20:34,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403990638] [2021-06-05 03:20:34,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 03:20:34,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:34,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 03:20:34,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-05 03:20:34,547 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 03:20:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:34,706 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-06-05 03:20:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:20:34,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2021-06-05 03:20:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:34,707 INFO L225 Difference]: With dead ends: 16 [2021-06-05 03:20:34,707 INFO L226 Difference]: Without dead ends: 11 [2021-06-05 03:20:34,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 168.8ms TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-06-05 03:20:34,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-06-05 03:20:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-06-05 03:20:34,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 03:20:34,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-06-05 03:20:34,713 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-06-05 03:20:34,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:34,714 INFO L482 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-06-05 03:20:34,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 03:20:34,714 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-06-05 03:20:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-06-05 03:20:34,715 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:34,716 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:34,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:20:34,718 INFO L430 AbstractCegarLoop]: === Iteration 3 === [addErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:34,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:34,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1530741366, now seen corresponding path program 2 times [2021-06-05 03:20:34,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:34,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772783734] [2021-06-05 03:20:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:34,797 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 03:20:34,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:34,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772783734] [2021-06-05 03:20:34,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772783734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:34,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:34,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 03:20:34,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064172222] [2021-06-05 03:20:34,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 03:20:34,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:34,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 03:20:34,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-05 03:20:34,800 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 03:20:34,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:34,935 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-06-05 03:20:34,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:20:34,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2021-06-05 03:20:34,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:34,936 INFO L225 Difference]: With dead ends: 15 [2021-06-05 03:20:34,936 INFO L226 Difference]: Without dead ends: 10 [2021-06-05 03:20:34,936 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-06-05 03:20:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-06-05 03:20:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-06-05 03:20:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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 03:20:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-06-05 03:20:34,938 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2021-06-05 03:20:34,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:34,938 INFO L482 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-06-05 03:20:34,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 03:20:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-06-05 03:20:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-06-05 03:20:34,938 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:34,938 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:34,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:20:34,938 INFO L430 AbstractCegarLoop]: === Iteration 4 === [addErr0ASSERT_VIOLATIONASSERT, addErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:34,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:34,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1807797666, now seen corresponding path program 3 times [2021-06-05 03:20:34,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:34,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884470384] [2021-06-05 03:20:34,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:35,023 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 03:20:35,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:35,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884470384] [2021-06-05 03:20:35,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884470384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:35,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:35,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 03:20:35,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292585586] [2021-06-05 03:20:35,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 03:20:35,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:35,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 03:20:35,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-05 03:20:35,025 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 03:20:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:35,109 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-06-05 03:20:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 03:20:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2021-06-05 03:20:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:35,110 INFO L225 Difference]: With dead ends: 9 [2021-06-05 03:20:35,110 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 03:20:35,110 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 115.9ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 03:20:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 03:20:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 03:20:35,111 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 03:20:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 03:20:35,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-06-05 03:20:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:35,111 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 03:20:35,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 03:20:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 03:20:35,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 03:20:35,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 03:20:35,113 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:20:35,115 INFO L202 PluginConnector]: Adding new model fork_multiple_parameter.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:20:35 BasicIcfg [2021-06-05 03:20:35,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:20:35,115 INFO L168 Benchmark]: Toolchain (without parser) took 1262.14 ms. Allocated memory is still 354.4 MB. Free memory was 334.1 MB in the beginning and 227.9 MB in the end (delta: 106.2 MB). Peak memory consumption was 109.0 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:35,116 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 354.4 MB. Free memory is still 335.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:20:35,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.02 ms. Allocated memory is still 354.4 MB. Free memory was 334.0 MB in the beginning and 332.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:35,116 INFO L168 Benchmark]: Boogie Preprocessor took 9.89 ms. Allocated memory is still 354.4 MB. Free memory was 332.5 MB in the beginning and 331.7 MB in the end (delta: 851.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:20:35,117 INFO L168 Benchmark]: RCFGBuilder took 180.53 ms. Allocated memory is still 354.4 MB. Free memory was 331.6 MB in the beginning and 323.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:35,117 INFO L168 Benchmark]: TraceAbstraction took 1047.53 ms. Allocated memory is still 354.4 MB. Free memory was 322.5 MB in the beginning and 227.9 MB in the end (delta: 94.6 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:35,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 354.4 MB. Free memory is still 335.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.02 ms. Allocated memory is still 354.4 MB. Free memory was 334.0 MB in the beginning and 332.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 9.89 ms. Allocated memory is still 354.4 MB. Free memory was 332.5 MB in the beginning and 331.7 MB in the end (delta: 851.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 180.53 ms. Allocated memory is still 354.4 MB. Free memory was 331.6 MB in the beginning and 323.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1047.53 ms. Allocated memory is still 354.4 MB. Free memory was 322.5 MB in the beginning and 227.9 MB in the end (delta: 94.6 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 956.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 6.2ms, AutomataDifference: 458.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 70 SDslu, 45 SDs, 0 SdLazy, 75 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 74.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 497.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.5ms SsaConstructionTime, 25.7ms SatisfiabilityAnalysisTime, 316.6ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...