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/test07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:35,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:35,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:35,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:28:35,426 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 [2019-09-20 13:28:35,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:35,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:35,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:35,445 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:35,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:35,447 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:35,447 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:35,447 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:35,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:35,447 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:35,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:35,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:35,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:35,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:35,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:35,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:35,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:35,450 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:35,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:35,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:35,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:35,452 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:35,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:35,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:35,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:35,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:35,453 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:35,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:35,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:35,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:35,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:35,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:35,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:35,505 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:35,505 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:35,506 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test07.c [2019-09-20 13:28:35,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/096d2383c/d177caa592294ca38780ca011fc7baac/FLAG22c3111e3 [2019-09-20 13:28:36,004 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:36,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test07.c [2019-09-20 13:28:36,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/096d2383c/d177caa592294ca38780ca011fc7baac/FLAG22c3111e3 [2019-09-20 13:28:36,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/096d2383c/d177caa592294ca38780ca011fc7baac [2019-09-20 13:28:36,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:36,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:36,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:36,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:36,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:36,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e10d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36, skipping insertion in model container [2019-09-20 13:28:36,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:36,473 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:36,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:36,697 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:36,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:36,725 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:36,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36 WrapperNode [2019-09-20 13:28:36,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:36,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:36,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:36,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:36,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (1/1) ... [2019-09-20 13:28:36,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:36,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:36,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:36,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:36,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (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 [2019-09-20 13:28:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-20 13:28:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-20 13:28:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:28:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:37,146 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:37,147 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:37,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:37 BoogieIcfgContainer [2019-09-20 13:28:37,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:37,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:37,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:37,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:37,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:36" (1/3) ... [2019-09-20 13:28:37,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc2a9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:37, skipping insertion in model container [2019-09-20 13:28:37,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:36" (2/3) ... [2019-09-20 13:28:37,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc2a9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:37, skipping insertion in model container [2019-09-20 13:28:37,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:37" (3/3) ... [2019-09-20 13:28:37,179 INFO L109 eAbstractionObserver]: Analyzing ICFG test07.c [2019-09-20 13:28:37,202 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:37,220 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:37,258 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:37,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:37,288 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:37,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:37,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:37,288 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:37,289 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:37,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:37,289 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-20 13:28:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:28:37,307 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:37,308 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:37,310 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:37,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1889415219, now seen corresponding path program 1 times [2019-09-20 13:28:37,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:37,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:37,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:37,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:37,364 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:37,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:37,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:37,626 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:37,631 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:37,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:37,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:37,649 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2019-09-20 13:28:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:37,728 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-09-20 13:28:37,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:28:37,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-09-20 13:28:37,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:37,745 INFO L225 Difference]: With dead ends: 23 [2019-09-20 13:28:37,746 INFO L226 Difference]: Without dead ends: 15 [2019-09-20 13:28:37,749 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-20 13:28:37,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-20 13:28:37,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-20 13:28:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-09-20 13:28:37,802 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2019-09-20 13:28:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:37,804 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-09-20 13:28:37,804 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-09-20 13:28:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:28:37,807 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:37,807 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:37,810 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:37,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:37,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1918044370, now seen corresponding path program 1 times [2019-09-20 13:28:37,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:37,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:37,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:37,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:37,821 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:38,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:38,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:28:38,257 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:38,259 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:28:38,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:28:38,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:38,261 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 7 states. [2019-09-20 13:28:38,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:38,424 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-09-20 13:28:38,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:28:38,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-09-20 13:28:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:38,425 INFO L225 Difference]: With dead ends: 9 [2019-09-20 13:28:38,425 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:38,427 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:28:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:38,428 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-09-20 13:28:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:38,429 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:38,429 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:28:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:38,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:38,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:38 BoogieIcfgContainer [2019-09-20 13:28:38,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:38,438 INFO L168 Benchmark]: Toolchain (without parser) took 2001.80 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 86.3 MB in the beginning and 81.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:38,439 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:38,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.95 ms. Allocated memory is still 138.9 MB. Free memory was 86.1 MB in the beginning and 76.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:38,441 INFO L168 Benchmark]: Boogie Preprocessor took 136.14 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 76.4 MB in the beginning and 176.8 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:38,442 INFO L168 Benchmark]: RCFGBuilder took 286.92 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 162.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:38,443 INFO L168 Benchmark]: TraceAbstraction took 1274.58 ms. Allocated memory is still 199.8 MB. Free memory was 162.0 MB in the beginning and 81.3 MB in the end (delta: 80.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:38,447 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 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.95 ms. Allocated memory is still 138.9 MB. Free memory was 86.1 MB in the beginning and 76.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.14 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 76.4 MB in the beginning and 176.8 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.92 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 162.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1274.58 ms. Allocated memory is still 199.8 MB. Free memory was 162.0 MB in the beginning and 81.3 MB in the end (delta: 80.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 3 SDslu, 39 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 4069 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...