/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:14:53,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:14:53,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:14:53,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:14:53,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:14:53,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:14:53,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:14:53,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:14:53,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:14:53,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:14:53,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:14:53,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:14:53,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:14:53,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:14:53,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:14:53,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:14:53,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:14:53,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:14:53,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:14:53,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:14:53,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:14:53,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:14:53,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:14:53,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:14:53,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:14:53,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:14:53,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:14:53,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:14:53,366 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 [2019-11-23 22:14:53,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:14:53,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:14:53,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:14:53,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:14:53,403 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:14:53,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:14:53,403 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:14:53,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:14:53,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:14:53,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:14:53,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:14:53,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:14:53,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:14:53,405 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:14:53,405 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:14:53,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:14:53,406 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:14:53,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:14:53,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:14:53,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:14:53,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:14:53,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:14:53,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:14:53,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:14:53,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:14:53,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:14:53,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:14:53,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:14:53,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:14:53,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:14:53,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:14:53,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:14:53,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:14:53,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:14:53,711 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:14:53,712 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2019-11-23 22:14:53,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bab0dad/5546209885a64a9ca6dfaefb2a0b9dd6/FLAGcd4abe759 [2019-11-23 22:14:54,227 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:14:54,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2019-11-23 22:14:54,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bab0dad/5546209885a64a9ca6dfaefb2a0b9dd6/FLAGcd4abe759 [2019-11-23 22:14:54,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bab0dad/5546209885a64a9ca6dfaefb2a0b9dd6 [2019-11-23 22:14:54,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:14:54,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:14:54,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:14:54,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:14:54,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:14:54,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:14:54" (1/1) ... [2019-11-23 22:14:54,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b68018e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:54, skipping insertion in model container [2019-11-23 22:14:54,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:14:54" (1/1) ... [2019-11-23 22:14:54,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:14:54,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:14:54,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:14:54,983 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:14:55,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:14:55,028 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:14:55,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55 WrapperNode [2019-11-23 22:14:55,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:14:55,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:14:55,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:14:55,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:14:55,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:14:55,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:14:55,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:14:55,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:14:55,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (1/1) ... [2019-11-23 22:14:55,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:14:55,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:14:55,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:14:55,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:14:55,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (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 [2019-11-23 22:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:14:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:14:55,454 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:14:55,454 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-23 22:14:55,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:14:55 BoogieIcfgContainer [2019-11-23 22:14:55,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:14:55,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:14:55,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:14:55,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:14:55,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:14:54" (1/3) ... [2019-11-23 22:14:55,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7651f00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:14:55, skipping insertion in model container [2019-11-23 22:14:55,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:14:55" (2/3) ... [2019-11-23 22:14:55,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7651f00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:14:55, skipping insertion in model container [2019-11-23 22:14:55,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:14:55" (3/3) ... [2019-11-23 22:14:55,464 INFO L109 eAbstractionObserver]: Analyzing ICFG n.c40.c [2019-11-23 22:14:55,474 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:14:55,481 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:14:55,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:14:55,518 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:14:55,518 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:14:55,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:14:55,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:14:55,519 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:14:55,519 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:14:55,519 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:14:55,519 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:14:55,540 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-23 22:14:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:14:55,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:14:55,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:14:55,551 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:14:55,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:14:55,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1813493552, now seen corresponding path program 1 times [2019-11-23 22:14:55,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:14:55,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054286956] [2019-11-23 22:14:55,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:14:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:14:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:14:55,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054286956] [2019-11-23 22:14:55,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:14:55,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:14:55,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302101184] [2019-11-23 22:14:55,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:14:55,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:14:55,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:14:55,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:14:55,738 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-11-23 22:14:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:14:55,752 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-11-23 22:14:55,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:14:55,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-23 22:14:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:14:55,760 INFO L225 Difference]: With dead ends: 22 [2019-11-23 22:14:55,761 INFO L226 Difference]: Without dead ends: 9 [2019-11-23 22:14:55,764 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 [2019-11-23 22:14:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-23 22:14:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-23 22:14:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-23 22:14:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-23 22:14:55,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-23 22:14:55,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:14:55,795 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-23 22:14:55,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:14:55,796 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-23 22:14:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:14:55,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:14:55,796 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:14:55,797 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:14:55,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:14:55,797 INFO L82 PathProgramCache]: Analyzing trace with hash 177687787, now seen corresponding path program 1 times [2019-11-23 22:14:55,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:14:55,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722644249] [2019-11-23 22:14:55,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:14:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:14:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:14:55,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722644249] [2019-11-23 22:14:55,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:14:55,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:14:55,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388704660] [2019-11-23 22:14:55,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:14:55,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:14:55,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:14:55,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:14:55,871 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-11-23 22:14:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:14:55,917 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-23 22:14:55,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:14:55,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-23 22:14:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:14:55,918 INFO L225 Difference]: With dead ends: 16 [2019-11-23 22:14:55,918 INFO L226 Difference]: Without dead ends: 11 [2019-11-23 22:14:55,919 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 [2019-11-23 22:14:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-23 22:14:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-23 22:14:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-23 22:14:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-23 22:14:55,923 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-11-23 22:14:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:14:55,923 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-23 22:14:55,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:14:55,923 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-23 22:14:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-23 22:14:55,924 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:14:55,924 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:14:55,924 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:14:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:14:55,925 INFO L82 PathProgramCache]: Analyzing trace with hash 468121936, now seen corresponding path program 1 times [2019-11-23 22:14:55,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:14:55,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491227760] [2019-11-23 22:14:55,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:14:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:14:55,989 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1315) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:573) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:202) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-23 22:14:55,994 INFO L168 Benchmark]: Toolchain (without parser) took 1229.35 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 136.3 MB in the end (delta: -34.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:14:55,996 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:14:55,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.43 ms. Allocated memory is still 144.2 MB. Free memory was 101.6 MB in the beginning and 91.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:14:55,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.38 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 91.6 MB in the beginning and 178.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:14:55,999 INFO L168 Benchmark]: Boogie Preprocessor took 22.90 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 177.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:14:55,999 INFO L168 Benchmark]: RCFGBuilder took 281.09 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 164.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:14:56,000 INFO L168 Benchmark]: TraceAbstraction took 535.01 ms. Allocated memory is still 200.8 MB. Free memory was 163.6 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:14:56,006 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.43 ms. Allocated memory is still 144.2 MB. Free memory was 101.6 MB in the beginning and 91.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 122.38 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 91.6 MB in the beginning and 178.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.90 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 177.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 281.09 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 164.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 535.01 ms. Allocated memory is still 200.8 MB. Free memory was 163.6 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (const Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (const Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...