/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-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:24,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:24,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:25,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:26:25,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:25,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:25,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:25,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:25,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:25,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:25,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:25,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:25,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:25,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:25,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:25,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:25,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:26:25,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:25,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:25,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:25,070 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 22:26:25,084 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:25,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:25,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:25,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:25,086 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:25,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:25,087 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:25,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:25,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:25,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:25,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:25,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:25,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:25,088 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:25,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:25,088 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:25,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:25,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:25,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:25,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:25,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:25,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:25,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:25,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:25,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:25,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:25,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:25,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:25,091 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 22:26:25,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:25,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:25,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:25,380 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:25,380 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:25,381 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-11-06 22:26:25,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69c1fa87/733b1b0741df4479b20c4a899d211892/FLAGa45c39c4f [2019-11-06 22:26:25,927 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:25,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-11-06 22:26:25,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69c1fa87/733b1b0741df4479b20c4a899d211892/FLAGa45c39c4f [2019-11-06 22:26:26,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69c1fa87/733b1b0741df4479b20c4a899d211892 [2019-11-06 22:26:26,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:26,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:26,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:26,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:26,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:26,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114eda2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26, skipping insertion in model container [2019-11-06 22:26:26,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,294 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:26,309 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:26,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:26,504 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:26,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:26,556 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:26,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26 WrapperNode [2019-11-06 22:26:26,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:26,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:26,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:26,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:26,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (1/1) ... [2019-11-06 22:26:26,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:26,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:26,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:26,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:26,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (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 22:26:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:26:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:27,096 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:27,096 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-06 22:26:27,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:27 BoogieIcfgContainer [2019-11-06 22:26:27,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:27,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:27,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:27,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:27,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:26" (1/3) ... [2019-11-06 22:26:27,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505b93e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:27, skipping insertion in model container [2019-11-06 22:26:27,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:26" (2/3) ... [2019-11-06 22:26:27,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505b93e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:27, skipping insertion in model container [2019-11-06 22:26:27,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:27" (3/3) ... [2019-11-06 22:26:27,114 INFO L109 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2019-11-06 22:26:27,121 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:27,127 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:27,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:27,164 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:27,164 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:27,164 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:27,164 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:27,164 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:27,165 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:27,165 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:27,165 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-06 22:26:27,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-06 22:26:27,191 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:27,192 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:27,195 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:27,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1156372912, now seen corresponding path program 1 times [2019-11-06 22:26:27,208 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:27,209 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909044513] [2019-11-06 22:26:27,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:27,322 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 22:26:27,323 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909044513] [2019-11-06 22:26:27,324 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:27,324 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:27,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005579726] [2019-11-06 22:26:27,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:27,332 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:27,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:27,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:27,348 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-06 22:26:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:27,379 INFO L93 Difference]: Finished difference Result 82 states and 123 transitions. [2019-11-06 22:26:27,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:27,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-06 22:26:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:27,390 INFO L225 Difference]: With dead ends: 82 [2019-11-06 22:26:27,390 INFO L226 Difference]: Without dead ends: 40 [2019-11-06 22:26:27,394 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 22:26:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-06 22:26:27,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-06 22:26:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-06 22:26:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-11-06 22:26:27,441 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 16 [2019-11-06 22:26:27,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:27,442 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-11-06 22:26:27,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-11-06 22:26:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-06 22:26:27,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:27,444 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:27,445 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:27,446 INFO L82 PathProgramCache]: Analyzing trace with hash -2078459264, now seen corresponding path program 1 times [2019-11-06 22:26:27,446 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:27,446 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132469232] [2019-11-06 22:26:27,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:27,507 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 22:26:27,507 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132469232] [2019-11-06 22:26:27,508 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:27,508 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:27,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335345575] [2019-11-06 22:26:27,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:27,510 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:27,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:27,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:27,513 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 3 states. [2019-11-06 22:26:27,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:27,598 INFO L93 Difference]: Finished difference Result 92 states and 123 transitions. [2019-11-06 22:26:27,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:27,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-06 22:26:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:27,601 INFO L225 Difference]: With dead ends: 92 [2019-11-06 22:26:27,601 INFO L226 Difference]: Without dead ends: 60 [2019-11-06 22:26:27,603 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 22:26:27,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-06 22:26:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 42. [2019-11-06 22:26:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-06 22:26:27,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2019-11-06 22:26:27,615 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 16 [2019-11-06 22:26:27,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:27,615 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2019-11-06 22:26:27,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:27,616 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2019-11-06 22:26:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-06 22:26:27,617 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:27,617 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] [2019-11-06 22:26:27,617 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:27,618 INFO L82 PathProgramCache]: Analyzing trace with hash -898844059, now seen corresponding path program 1 times [2019-11-06 22:26:27,618 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:27,618 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432554059] [2019-11-06 22:26:27,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:27,695 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 22:26:27,696 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432554059] [2019-11-06 22:26:27,696 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:27,696 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:26:27,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48520921] [2019-11-06 22:26:27,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:26:27,698 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:27,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:27,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:26:27,698 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 4 states. [2019-11-06 22:26:27,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:27,843 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2019-11-06 22:26:27,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:26:27,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-11-06 22:26:27,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:27,846 INFO L225 Difference]: With dead ends: 94 [2019-11-06 22:26:27,846 INFO L226 Difference]: Without dead ends: 63 [2019-11-06 22:26:27,847 INFO L630 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 [2019-11-06 22:26:27,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-06 22:26:27,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2019-11-06 22:26:27,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-06 22:26:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2019-11-06 22:26:27,861 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 20 [2019-11-06 22:26:27,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:27,861 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2019-11-06 22:26:27,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:26:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2019-11-06 22:26:27,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-06 22:26:27,863 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:27,863 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, 1] [2019-11-06 22:26:27,863 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:27,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:27,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1561235658, now seen corresponding path program 1 times [2019-11-06 22:26:27,864 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:27,864 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980159772] [2019-11-06 22:26:27,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:27,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:27,931 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980159772] [2019-11-06 22:26:27,931 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444786474] [2019-11-06 22:26:27,931 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 22:26:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:27,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:27,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:28,045 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:28,087 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1845628573] [2019-11-06 22:26:28,093 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-11-06 22:26:28,133 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:28,133 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:28,215 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:28,217 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-11-06 22:26:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:28,221 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:28,258 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:28,259 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:28,260 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-11-06 22:26:28,260 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:28,261 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:28,261 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 8 [2019-11-06 22:26:28,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127695430] [2019-11-06 22:26:28,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:28,262 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:28,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:28,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:26:28,263 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 2 states. [2019-11-06 22:26:28,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:28,266 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-06 22:26:28,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:28,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-11-06 22:26:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:28,267 INFO L225 Difference]: With dead ends: 43 [2019-11-06 22:26:28,267 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:28,268 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:26:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:28,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:28,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-11-06 22:26:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:28,269 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:28,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:28,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:28,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:28,474 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:28,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:28,531 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:28,532 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:28,532 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:28,532 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:28,532 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:28,532 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:28,532 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:28,532 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 47) no Hoare annotation was computed. [2019-11-06 22:26:28,533 INFO L443 ceAbstractionStarter]: For program point L36-2(lines 36 38) no Hoare annotation was computed. [2019-11-06 22:26:28,533 INFO L439 ceAbstractionStarter]: At program point L36-3(lines 36 38) the Hoare annotation is: false [2019-11-06 22:26:28,533 INFO L443 ceAbstractionStarter]: For program point L36-4(lines 36 38) no Hoare annotation was computed. [2019-11-06 22:26:28,533 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: false [2019-11-06 22:26:28,533 INFO L443 ceAbstractionStarter]: For program point L20-3(lines 17 40) no Hoare annotation was computed. [2019-11-06 22:26:28,533 INFO L439 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: false [2019-11-06 22:26:28,534 INFO L443 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2019-11-06 22:26:28,534 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-06 22:26:28,534 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-11-06 22:26:28,534 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 47) no Hoare annotation was computed. [2019-11-06 22:26:28,534 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 47) the Hoare annotation is: true [2019-11-06 22:26:28,534 INFO L443 ceAbstractionStarter]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2019-11-06 22:26:28,535 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 31 35) the Hoare annotation is: false [2019-11-06 22:26:28,535 INFO L443 ceAbstractionStarter]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2019-11-06 22:26:28,535 INFO L443 ceAbstractionStarter]: For program point L32-2(lines 32 34) no Hoare annotation was computed. [2019-11-06 22:26:28,535 INFO L439 ceAbstractionStarter]: At program point L32-3(lines 32 34) the Hoare annotation is: false [2019-11-06 22:26:28,535 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 45) no Hoare annotation was computed. [2019-11-06 22:26:28,535 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: false [2019-11-06 22:26:28,535 INFO L443 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2019-11-06 22:26:28,536 INFO L439 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: false [2019-11-06 22:26:28,536 INFO L443 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2019-11-06 22:26:28,536 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 40) the Hoare annotation is: false [2019-11-06 22:26:28,536 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 40) no Hoare annotation was computed. [2019-11-06 22:26:28,536 INFO L443 ceAbstractionStarter]: For program point L42-2(lines 42 44) no Hoare annotation was computed. [2019-11-06 22:26:28,536 INFO L439 ceAbstractionStarter]: At program point L42-3(lines 42 44) the Hoare annotation is: false [2019-11-06 22:26:28,536 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2019-11-06 22:26:28,537 INFO L439 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: false [2019-11-06 22:26:28,537 INFO L443 ceAbstractionStarter]: For program point L43-1(line 43) no Hoare annotation was computed. [2019-11-06 22:26:28,537 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2019-11-06 22:26:28,537 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 13) the Hoare annotation is: false [2019-11-06 22:26:28,537 INFO L443 ceAbstractionStarter]: For program point L10-4(lines 10 13) no Hoare annotation was computed. [2019-11-06 22:26:28,537 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:28,537 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:28,538 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:28,538 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:28,538 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:28,538 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:28,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:28 BoogieIcfgContainer [2019-11-06 22:26:28,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:28,549 INFO L168 Benchmark]: Toolchain (without parser) took 2269.15 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 102.1 MB in the beginning and 191.2 MB in the end (delta: -89.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:28,550 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:28,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.10 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 91.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:28,552 INFO L168 Benchmark]: Boogie Preprocessor took 138.55 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.3 MB in the beginning and 179.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:28,553 INFO L168 Benchmark]: RCFGBuilder took 402.32 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 160.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:28,554 INFO L168 Benchmark]: TraceAbstraction took 1441.85 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 159.8 MB in the beginning and 191.2 MB in the end (delta: -31.4 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:28,558 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 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.10 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 91.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.55 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.3 MB in the beginning and 179.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.32 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 160.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1441.85 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 159.8 MB in the beginning and 191.2 MB in the end (delta: -31.4 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 50 SDslu, 107 SDs, 0 SdLazy, 71 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 27 PreInvPairs, 27 NumberOfFragments, 16 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 2853 SizeOfPredicates, 1 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 129, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9431818181818182, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0454545454545454, AVG_WEAKENED_CONJUNCTS: 0.2727272727272727, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...