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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_cut_trace.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:24:26,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:24:26,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:24:26,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 02:24:27,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:24:27,038 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:24:27,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:24:27,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:24:27,039 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:24:27,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:24:27,040 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:24:27,040 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:24:27,040 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:24:27,040 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:24:27,041 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:24:27,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:24:27,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:24:27,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:24:27,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:24:27,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:24:27,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:24:27,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:24:27,043 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:24:27,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:24:27,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:24:27,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:24:27,043 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:24:27,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:24:27,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:24:27,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:24:27,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:24:27,044 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:24:27,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:24:27,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:24:27,045 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:24:27,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:24:27,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:24:27,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:24:27,089 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:24:27,089 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:24:27,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_cut_trace.i [2019-10-03 02:24:27,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc1da66e/adb2644f51354d0e83cae64b6d3bc017/FLAGbd2b0b4af [2019-10-03 02:24:27,583 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:24:27,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_cut_trace.i [2019-10-03 02:24:27,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc1da66e/adb2644f51354d0e83cae64b6d3bc017/FLAGbd2b0b4af [2019-10-03 02:24:28,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc1da66e/adb2644f51354d0e83cae64b6d3bc017 [2019-10-03 02:24:28,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:24:28,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:24:28,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:24:28,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:24:28,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:24:28,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae326e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28, skipping insertion in model container [2019-10-03 02:24:28,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,028 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:24:28,047 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:24:28,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:24:28,222 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:24:28,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:24:28,253 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:24:28,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28 WrapperNode [2019-10-03 02:24:28,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:24:28,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:24:28,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:24:28,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:24:28,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (1/1) ... [2019-10-03 02:24:28,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:24:28,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:24:28,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:24:28,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:24:28,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (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 [2019-10-03 02:24:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:24:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:24:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-03 02:24:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:24:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:24:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-03 02:24:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:24:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:24:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:24:28,570 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:24:28,571 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-03 02:24:28,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:24:28 BoogieIcfgContainer [2019-10-03 02:24:28,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:24:28,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:24:28,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:24:28,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:24:28,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:24:28" (1/3) ... [2019-10-03 02:24:28,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26db79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:24:28, skipping insertion in model container [2019-10-03 02:24:28,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:28" (2/3) ... [2019-10-03 02:24:28,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26db79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:24:28, skipping insertion in model container [2019-10-03 02:24:28,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:24:28" (3/3) ... [2019-10-03 02:24:28,581 INFO L109 eAbstractionObserver]: Analyzing ICFG test_cut_trace.i [2019-10-03 02:24:28,591 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:24:28,597 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:24:28,610 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:24:28,638 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:24:28,638 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:24:28,638 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:24:28,638 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:24:28,639 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:24:28,639 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:24:28,639 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:24:28,639 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:24:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-03 02:24:28,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-03 02:24:28,663 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:28,664 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:24:28,667 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:28,673 INFO L82 PathProgramCache]: Analyzing trace with hash -417355086, now seen corresponding path program 1 times [2019-10-03 02:24:28,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:28,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:28,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:28,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:28,717 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:28,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:28,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:24:28,809 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:28,812 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:24:28,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:24:28,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:24:28,825 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-10-03 02:24:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:28,865 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-10-03 02:24:28,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:24:28,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-03 02:24:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:28,880 INFO L225 Difference]: With dead ends: 16 [2019-10-03 02:24:28,880 INFO L226 Difference]: Without dead ends: 11 [2019-10-03 02:24:28,883 INFO L640 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 [2019-10-03 02:24:28,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-10-03 02:24:28,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-03 02:24:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-03 02:24:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-10-03 02:24:28,958 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2019-10-03 02:24:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:28,962 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-10-03 02:24:28,962 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:24:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-10-03 02:24:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-03 02:24:28,963 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:28,964 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:24:28,964 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:28,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1648524013, now seen corresponding path program 1 times [2019-10-03 02:24:28,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:28,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:28,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:28,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:28,969 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:24:29,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:29,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:24:29,061 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:29,062 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:24:29,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:24:29,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:24:29,064 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2019-10-03 02:24:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:29,097 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-10-03 02:24:29,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:24:29,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-03 02:24:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:29,098 INFO L225 Difference]: With dead ends: 8 [2019-10-03 02:24:29,098 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:24:29,099 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:24:29,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:24:29,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:24:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:24:29,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:24:29,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-03 02:24:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:29,101 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:24:29,101 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:24:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:24:29,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:24:29,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:24:29 BoogieIcfgContainer [2019-10-03 02:24:29,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:24:29,116 INFO L168 Benchmark]: Toolchain (without parser) took 1101.63 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 86.5 MB in the beginning and 137.3 MB in the end (delta: -50.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:29,117 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:24:29,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.32 ms. Allocated memory is still 131.1 MB. Free memory was 86.3 MB in the beginning and 77.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:29,121 INFO L168 Benchmark]: Boogie Preprocessor took 127.90 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 77.4 MB in the beginning and 176.0 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:29,122 INFO L168 Benchmark]: RCFGBuilder took 189.50 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 165.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:29,125 INFO L168 Benchmark]: TraceAbstraction took 535.19 ms. Allocated memory is still 199.2 MB. Free memory was 165.6 MB in the beginning and 137.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:29,132 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.32 ms. Allocated memory is still 131.1 MB. Free memory was 86.3 MB in the beginning and 77.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.90 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 77.4 MB in the beginning and 176.0 MB in the end (delta: -98.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 189.50 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 165.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 535.19 ms. Allocated memory is still 199.2 MB. Free memory was 165.6 MB in the beginning and 137.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...