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/loops/terminator_01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 20:36:55,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 20:36:55,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 20:36:55,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 20:36:55,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 20:36:55,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 20:36:55,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 20:36:55,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 20:36:55,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 20:36:55,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 20:36:55,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 20:36:55,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 20:36:55,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 20:36:55,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 20:36:55,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 20:36:55,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 20:36:55,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 20:36:55,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 20:36:55,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 20:36:56,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 20:36:56,001 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 [2019-09-03 20:36:56,016 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 20:36:56,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 20:36:56,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 20:36:56,017 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 20:36:56,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 20:36:56,017 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 20:36:56,018 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 20:36:56,018 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 20:36:56,018 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 20:36:56,018 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 20:36:56,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 20:36:56,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 20:36:56,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 20:36:56,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 20:36:56,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 20:36:56,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 20:36:56,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 20:36:56,021 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 20:36:56,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 20:36:56,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 20:36:56,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 20:36:56,021 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 20:36:56,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 20:36:56,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 20:36:56,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 20:36:56,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 20:36:56,023 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 20:36:56,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 20:36:56,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 20:36:56,023 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 20:36:56,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 20:36:56,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 20:36:56,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 20:36:56,095 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 20:36:56,096 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 20:36:56,097 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_01.c [2019-09-03 20:36:56,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34055e473/f6a077c4a3754fee9f5930338f787e82/FLAG9dc77d8fb [2019-09-03 20:36:56,600 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 20:36:56,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_01.c [2019-09-03 20:36:56,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34055e473/f6a077c4a3754fee9f5930338f787e82/FLAG9dc77d8fb [2019-09-03 20:36:56,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34055e473/f6a077c4a3754fee9f5930338f787e82 [2019-09-03 20:36:56,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 20:36:56,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 20:36:56,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 20:36:56,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 20:36:56,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 20:36:56,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:36:56" (1/1) ... [2019-09-03 20:36:56,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2369f5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:56, skipping insertion in model container [2019-09-03 20:36:56,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:36:56" (1/1) ... [2019-09-03 20:36:56,999 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 20:36:57,016 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 20:36:57,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:36:57,200 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 20:36:57,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:36:57,229 INFO L192 MainTranslator]: Completed translation [2019-09-03 20:36:57,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57 WrapperNode [2019-09-03 20:36:57,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 20:36:57,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 20:36:57,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 20:36:57,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 20:36:57,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (1/1) ... [2019-09-03 20:36:57,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 20:36:57,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 20:36:57,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 20:36:57,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 20:36:57,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (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 [2019-09-03 20:36:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 20:36:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 20:36:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 20:36:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 20:36:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 20:36:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 20:36:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 20:36:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 20:36:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-03 20:36:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-03 20:36:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-03 20:36:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-03 20:36:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-03 20:36:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 20:36:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 20:36:57,642 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 20:36:57,643 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 20:36:57,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:36:57 BoogieIcfgContainer [2019-09-03 20:36:57,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 20:36:57,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 20:36:57,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 20:36:57,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 20:36:57,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 08:36:56" (1/3) ... [2019-09-03 20:36:57,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c35342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:36:57, skipping insertion in model container [2019-09-03 20:36:57,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:57" (2/3) ... [2019-09-03 20:36:57,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c35342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:36:57, skipping insertion in model container [2019-09-03 20:36:57,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:36:57" (3/3) ... [2019-09-03 20:36:57,653 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_01.c [2019-09-03 20:36:57,663 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 20:36:57,672 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 20:36:57,691 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 20:36:57,720 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 20:36:57,721 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-03 20:36:57,721 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 20:36:57,721 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 20:36:57,721 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 20:36:57,721 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 20:36:57,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 20:36:57,722 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 20:36:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-09-03 20:36:57,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-03 20:36:57,747 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:57,748 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:36:57,750 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:57,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:57,758 INFO L82 PathProgramCache]: Analyzing trace with hash -564387615, now seen corresponding path program 1 times [2019-09-03 20:36:57,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:57,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:57,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:57,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:57,809 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:36:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:36:57,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:36:57,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-03 20:36:57,892 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 20:36:57,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-03 20:36:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-03 20:36:57,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-03 20:36:57,909 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-09-03 20:36:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:36:57,921 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-09-03 20:36:57,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-03 20:36:57,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-03 20:36:57,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:36:57,930 INFO L225 Difference]: With dead ends: 20 [2019-09-03 20:36:57,930 INFO L226 Difference]: Without dead ends: 13 [2019-09-03 20:36:57,932 INFO L628 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 [2019-09-03 20:36:57,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-09-03 20:36:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-09-03 20:36:57,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-03 20:36:57,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-03 20:36:57,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-09-03 20:36:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:36:57,967 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-03 20:36:57,967 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-03 20:36:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-03 20:36:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-03 20:36:57,968 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:57,968 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:36:57,969 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:57,969 INFO L82 PathProgramCache]: Analyzing trace with hash -538271495, now seen corresponding path program 1 times [2019-09-03 20:36:57,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:57,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:57,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:57,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:57,971 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-03 20:36:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-03 20:36:58,032 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-03 20:36:58,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 08:36:58 BoogieIcfgContainer [2019-09-03 20:36:58,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 20:36:58,061 INFO L168 Benchmark]: Toolchain (without parser) took 1079.85 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 89.2 MB in the beginning and 143.2 MB in the end (delta: -54.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:58,062 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 20:36:58,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.63 ms. Allocated memory is still 141.0 MB. Free memory was 89.0 MB in the beginning and 79.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:58,065 INFO L168 Benchmark]: Boogie Preprocessor took 129.96 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 79.1 MB in the beginning and 178.7 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:58,066 INFO L168 Benchmark]: RCFGBuilder took 284.42 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 165.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:58,066 INFO L168 Benchmark]: TraceAbstraction took 412.33 ms. Allocated memory is still 201.3 MB. Free memory was 165.4 MB in the beginning and 143.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:58,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.63 ms. Allocated memory is still 141.0 MB. Free memory was 89.0 MB in the beginning and 79.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.96 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 79.1 MB in the beginning and 178.7 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 284.42 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 165.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 412.33 ms. Allocated memory is still 201.3 MB. Free memory was 165.4 MB in the beginning and 143.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x=__VERIFIER_nondet_int(); [L13] int x=__VERIFIER_nondet_int(); [L14] int *p = &x; VAL [p={1:0}, x={1:0}] [L16] EXPR \read(x) VAL [\read(x)=102, p={1:0}, x={1:0}] [L16] COND FALSE !(x<100) [L19] CALL __VERIFIER_assert(0) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...