/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-industry-pattern/check_removal_from_set_after_insertion.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:27:22,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:27:22,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:27:22,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:27:22,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:27:22,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:27:22,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:27:22,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:27:22,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:27:22,140 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:27:22,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:27:22,141 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:27:22,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:27:22,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:27:22,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:27:22,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:27:22,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:27:22,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:27:22,143 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:27:22,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:27:22,143 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:27:22,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:27:22,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:27:22,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:27:22,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:27:22,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:27:22,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:27:22,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:27:22,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:27:22,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:27:22,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:27:22,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:27:22,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:27:22,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:27:22,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:27:22,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:27:22,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:27:22,455 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:27:22,456 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:27:22,456 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/check_removal_from_set_after_insertion.c [2019-11-06 22:27:22,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6ca95c8/b4ef01db92234598adf9d6528faad0c8/FLAGb324b5edd [2019-11-06 22:27:22,980 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:27:22,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/check_removal_from_set_after_insertion.c [2019-11-06 22:27:22,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6ca95c8/b4ef01db92234598adf9d6528faad0c8/FLAGb324b5edd [2019-11-06 22:27:23,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6ca95c8/b4ef01db92234598adf9d6528faad0c8 [2019-11-06 22:27:23,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:27:23,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:27:23,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:27:23,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:27:23,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:27:23,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69804ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23, skipping insertion in model container [2019-11-06 22:27:23,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,382 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:27:23,402 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:27:23,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:27:23,699 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:27:23,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:27:23,864 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:27:23,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23 WrapperNode [2019-11-06 22:27:23,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:27:23,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:27:23,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:27:23,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:27:23,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (1/1) ... [2019-11-06 22:27:23,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:27:23,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:27:23,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:27:23,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:27:23,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (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 [2019-11-06 22:27:23,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:27:23,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:27:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:27:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2019-11-06 22:27:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2019-11-06 22:27:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:27:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:27:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:27:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:27:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2019-11-06 22:27:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:27:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2019-11-06 22:27:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:27:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:27:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:27:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:27:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:27:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:27:24,378 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:27:24,379 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-06 22:27:24,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:24 BoogieIcfgContainer [2019-11-06 22:27:24,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:27:24,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:27:24,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:27:24,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:27:24,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:23" (1/3) ... [2019-11-06 22:27:24,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1034f4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:24, skipping insertion in model container [2019-11-06 22:27:24,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:23" (2/3) ... [2019-11-06 22:27:24,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1034f4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:24, skipping insertion in model container [2019-11-06 22:27:24,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:24" (3/3) ... [2019-11-06 22:27:24,388 INFO L109 eAbstractionObserver]: Analyzing ICFG check_removal_from_set_after_insertion.c [2019-11-06 22:27:24,397 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:27:24,405 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:27:24,416 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:27:24,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:27:24,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:27:24,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:27:24,441 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:27:24,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:27:24,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:27:24,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:27:24,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:27:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-11-06 22:27:24,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-06 22:27:24,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:24,464 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:24,466 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:24,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1521704262, now seen corresponding path program 1 times [2019-11-06 22:27:24,482 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:24,483 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562708388] [2019-11-06 22:27:24,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:24,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:24,632 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562708388] [2019-11-06 22:27:24,633 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:27:24,633 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:27:24,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075427606] [2019-11-06 22:27:24,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:27:24,641 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:24,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:27:24,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:27:24,656 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-11-06 22:27:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:27:24,682 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2019-11-06 22:27:24,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:27:24,684 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-06 22:27:24,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:27:24,693 INFO L225 Difference]: With dead ends: 90 [2019-11-06 22:27:24,693 INFO L226 Difference]: Without dead ends: 44 [2019-11-06 22:27:24,697 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:27:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-06 22:27:24,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-11-06 22:27:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-06 22:27:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2019-11-06 22:27:24,733 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 18 [2019-11-06 22:27:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:27:24,733 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-11-06 22:27:24,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:27:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2019-11-06 22:27:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-06 22:27:24,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:24,735 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:24,736 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:24,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1816604960, now seen corresponding path program 1 times [2019-11-06 22:27:24,737 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:24,737 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690504601] [2019-11-06 22:27:24,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:24,810 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690504601] [2019-11-06 22:27:24,813 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:27:24,814 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:27:24,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790941641] [2019-11-06 22:27:24,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:27:24,816 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:24,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:27:24,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:27:24,817 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 3 states. [2019-11-06 22:27:24,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:27:24,880 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2019-11-06 22:27:24,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:27:24,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-06 22:27:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:27:24,882 INFO L225 Difference]: With dead ends: 61 [2019-11-06 22:27:24,882 INFO L226 Difference]: Without dead ends: 46 [2019-11-06 22:27:24,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:27:24,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-06 22:27:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-06 22:27:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-06 22:27:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2019-11-06 22:27:24,893 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 18 [2019-11-06 22:27:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:27:24,894 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-11-06 22:27:24,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:27:24,894 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2019-11-06 22:27:24,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-06 22:27:24,895 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:24,895 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:24,896 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:24,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:24,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1871306430, now seen corresponding path program 1 times [2019-11-06 22:27:24,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:24,897 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449973671] [2019-11-06 22:27:24,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:27:25,017 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449973671] [2019-11-06 22:27:25,017 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600215656] [2019-11-06 22:27:25,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:27:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:25,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:27:25,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:27:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:27:25,134 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:27:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:27:25,190 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:27:25,190 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 8 [2019-11-06 22:27:25,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008373294] [2019-11-06 22:27:25,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:27:25,194 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:25,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:27:25,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:27:25,202 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 6 states. [2019-11-06 22:27:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:27:25,353 INFO L93 Difference]: Finished difference Result 99 states and 119 transitions. [2019-11-06 22:27:25,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 22:27:25,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-06 22:27:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:27:25,358 INFO L225 Difference]: With dead ends: 99 [2019-11-06 22:27:25,358 INFO L226 Difference]: Without dead ends: 61 [2019-11-06 22:27:25,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:27:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-06 22:27:25,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 49. [2019-11-06 22:27:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-06 22:27:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2019-11-06 22:27:25,374 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 22 [2019-11-06 22:27:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:27:25,375 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2019-11-06 22:27:25,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:27:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2019-11-06 22:27:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-06 22:27:25,376 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:27:25,377 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:27:25,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:27:25,581 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:27:25,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:25,581 INFO L82 PathProgramCache]: Analyzing trace with hash -118364026, now seen corresponding path program 1 times [2019-11-06 22:27:25,582 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:27:25,582 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777705814] [2019-11-06 22:27:25,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:27:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-06 22:27:25,722 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777705814] [2019-11-06 22:27:25,722 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122597143] [2019-11-06 22:27:25,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:27:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:27:25,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-06 22:27:25,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:27:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:27:25,839 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:27:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:27:25,893 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1491560473] [2019-11-06 22:27:25,900 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 27 [2019-11-06 22:27:25,947 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:27:25,947 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:27:26,043 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:27:26,045 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 20 root evaluator evaluations with a maximum evaluation depth of 0. Performed 20 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 31 variables. [2019-11-06 22:27:26,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:27:26,049 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:27:26,086 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 70.83% of their original sizes. [2019-11-06 22:27:26,087 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:27:26,092 INFO L553 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-11-06 22:27:26,092 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:27:26,093 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:27:26,093 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 6, 6] total 13 [2019-11-06 22:27:26,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683574904] [2019-11-06 22:27:26,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:27:26,094 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:27:26,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:27:26,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:27:26,095 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 3 states. [2019-11-06 22:27:26,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:27:26,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:27:26,301 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at least one of both input predicates is unknown: 722#true or 919#(= ~SIZE~0 100000) ([#1{~SIZE~0 = [100000;100000]; }]) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker$CheckHelper.check(SdHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker.checkCall(SdHoareTripleChecker.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.checkCall(EfficientHoareTripleChecker.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkCall(CachingHoareTripleChecker.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$CallSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:403) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1089) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:969) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-06 22:27:26,307 INFO L168 Benchmark]: Toolchain (without parser) took 2941.58 ms. Allocated memory was 136.8 MB in the beginning and 231.7 MB in the end (delta: 94.9 MB). Free memory was 102.3 MB in the beginning and 162.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:26,309 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:27:26,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.08 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 102.1 MB in the beginning and 179.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:26,310 INFO L168 Benchmark]: Boogie Preprocessor took 43.18 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 177.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:26,311 INFO L168 Benchmark]: RCFGBuilder took 471.25 ms. Allocated memory is still 201.9 MB. Free memory was 177.6 MB in the beginning and 156.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:26,312 INFO L168 Benchmark]: TraceAbstraction took 1923.82 ms. Allocated memory was 201.9 MB in the beginning and 231.7 MB in the end (delta: 29.9 MB). Free memory was 156.2 MB in the beginning and 162.7 MB in the end (delta: -6.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:27:26,320 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 499.08 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 102.1 MB in the beginning and 179.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.18 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 177.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.25 ms. Allocated memory is still 201.9 MB. Free memory was 177.6 MB in the beginning and 156.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1923.82 ms. Allocated memory was 201.9 MB in the beginning and 231.7 MB in the end (delta: 29.9 MB). Free memory was 156.2 MB in the beginning and 162.7 MB in the end (delta: -6.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at least one of both input predicates is unknown: 722#true or 919#(= ~SIZE~0 100000) ([#1{~SIZE~0 = [100000;100000]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 722#true or 919#(= ~SIZE~0 100000) ([#1{~SIZE~0 = [100000;100000]; }]): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...