/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/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:36:00,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:36:00,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:36:00,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-07 00:36:00,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:36:00,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:36:00,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:36:00,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:36:00,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:36:00,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:36:01,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:36:01,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:36:01,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:36:01,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:36:01,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:36:01,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:36:01,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:36:01,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:36:01,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:36:01,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:36:01,028 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 [2019-11-07 00:36:01,059 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:36:01,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:36:01,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:36:01,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:36:01,064 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:36:01,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:36:01,065 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:36:01,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:36:01,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:36:01,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:36:01,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:36:01,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:36:01,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:36:01,068 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:36:01,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:36:01,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:36:01,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:36:01,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:36:01,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:36:01,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:36:01,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:36:01,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:36:01,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:36:01,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:36:01,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:36:01,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:36:01,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:36:01,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:36:01,073 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 [2019-11-07 00:36:01,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:36:01,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:36:01,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:36:01,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:36:01,365 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:36:01,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2019-11-07 00:36:01,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3d93bab/926333e67a5f47008724cc7e10395c95/FLAG04cc595b7 [2019-11-07 00:36:01,902 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:36:01,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2019-11-07 00:36:01,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3d93bab/926333e67a5f47008724cc7e10395c95/FLAG04cc595b7 [2019-11-07 00:36:02,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3d93bab/926333e67a5f47008724cc7e10395c95 [2019-11-07 00:36:02,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:36:02,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:36:02,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:36:02,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:36:02,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:36:02,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c17596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02, skipping insertion in model container [2019-11-07 00:36:02,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,290 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:36:02,307 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:36:02,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:36:02,482 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:36:02,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:36:02,517 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:36:02,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02 WrapperNode [2019-11-07 00:36:02,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:36:02,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:36:02,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:36:02,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:36:02,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (1/1) ... [2019-11-07 00:36:02,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:36:02,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:36:02,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:36:02,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:36:02,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (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 [2019-11-07 00:36:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:36:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:36:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:36:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:36:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:36:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:36:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:36:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 00:36:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:36:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:36:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:36:02,894 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:36:02,894 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 00:36:02,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:02 BoogieIcfgContainer [2019-11-07 00:36:02,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:36:02,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:36:02,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:36:02,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:36:02,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:36:02" (1/3) ... [2019-11-07 00:36:02,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be54b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:02, skipping insertion in model container [2019-11-07 00:36:02,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:02" (2/3) ... [2019-11-07 00:36:02,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be54b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:02, skipping insertion in model container [2019-11-07 00:36:02,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:02" (3/3) ... [2019-11-07 00:36:02,926 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2019-11-07 00:36:02,945 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:36:02,955 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:36:02,970 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:36:02,996 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:36:02,996 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:36:02,996 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:36:02,997 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:36:02,997 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:36:02,997 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:36:02,997 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:36:02,997 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:36:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-07 00:36:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 00:36:03,039 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:36:03,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:36:03,044 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:36:03,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:36:03,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1712329921, now seen corresponding path program 1 times [2019-11-07 00:36:03,057 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:36:03,058 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944703364] [2019-11-07 00:36:03,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:36:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:36:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:36:03,161 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944703364] [2019-11-07 00:36:03,162 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:36:03,162 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:36:03,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806890524] [2019-11-07 00:36:03,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:36:03,170 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:36:03,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:36:03,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:36:03,188 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-07 00:36:03,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:36:03,212 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-11-07 00:36:03,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:36:03,213 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-07 00:36:03,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:36:03,220 INFO L225 Difference]: With dead ends: 31 [2019-11-07 00:36:03,221 INFO L226 Difference]: Without dead ends: 12 [2019-11-07 00:36:03,224 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 [2019-11-07 00:36:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-07 00:36:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-07 00:36:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-07 00:36:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-07 00:36:03,259 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-11-07 00:36:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:36:03,259 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-07 00:36:03,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:36:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-07 00:36:03,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 00:36:03,261 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:36:03,261 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:36:03,261 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:36:03,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:36:03,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1703094711, now seen corresponding path program 1 times [2019-11-07 00:36:03,263 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:36:03,263 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568415593] [2019-11-07 00:36:03,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:36:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 00:36:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 00:36:03,307 INFO L172 FreeRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-11-07 00:36:03,307 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-07 00:36:03,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:36:03 BoogieIcfgContainer [2019-11-07 00:36:03,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:36:03,330 INFO L168 Benchmark]: Toolchain (without parser) took 1055.61 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 105.3 MB in the beginning and 149.4 MB in the end (delta: -44.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:03,331 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 123.3 MB in the beginning and 123.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-11-07 00:36:03,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.13 ms. Allocated memory is still 146.3 MB. Free memory was 105.1 MB in the beginning and 95.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:03,333 INFO L168 Benchmark]: Boogie Preprocessor took 123.87 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 95.8 MB in the beginning and 182.8 MB in the end (delta: -87.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:03,334 INFO L168 Benchmark]: RCFGBuilder took 260.20 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 170.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:03,335 INFO L168 Benchmark]: TraceAbstraction took 423.85 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 149.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:36:03,340 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 146.3 MB. Free memory was 123.3 MB in the beginning and 123.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.13 ms. Allocated memory is still 146.3 MB. Free memory was 105.1 MB in the beginning and 95.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.87 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 95.8 MB in the beginning and 182.8 MB in the end (delta: -87.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.20 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 170.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 423.85 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 149.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 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: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100