/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/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:15:07,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:15:07,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:15:07,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:15:07,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:15:07,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:15:07,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:15:07,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:15:07,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:15:07,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:15:07,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:15:07,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:15:07,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:15:07,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:15:07,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:15:07,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:15:07,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:15:07,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:15:07,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:15:07,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:15:07,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:15:07,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:15:07,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:15:07,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:15:07,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:15:07,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:15:07,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:15:07,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:15:07,808 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 22:15:07,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:15:07,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:15:07,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:15:07,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:15:07,824 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:15:07,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:15:07,824 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:15:07,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:15:07,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:15:07,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:15:07,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:15:07,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:15:07,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:15:07,825 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:15:07,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:15:07,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:15:07,827 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:15:07,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:15:07,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:15:07,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:15:07,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:15:07,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:15:07,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:15:07,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:15:07,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:15:07,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:15:07,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:15:07,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:15:07,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:15:07,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:15:08,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:15:08,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:15:08,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:15:08,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:15:08,105 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:15:08,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2019-11-23 22:15:08,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1fc0e0e/110a7557d37f457c98a0800c4383f13b/FLAGe27f24283 [2019-11-23 22:15:08,639 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:15:08,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40.c [2019-11-23 22:15:08,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1fc0e0e/110a7557d37f457c98a0800c4383f13b/FLAGe27f24283 [2019-11-23 22:15:09,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1fc0e0e/110a7557d37f457c98a0800c4383f13b [2019-11-23 22:15:09,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:15:09,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:15:09,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:15:09,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:15:09,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:15:09,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e223023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09, skipping insertion in model container [2019-11-23 22:15:09,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:15:09,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:15:09,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:15:09,276 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:15:09,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:15:09,317 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:15:09,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09 WrapperNode [2019-11-23 22:15:09,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:15:09,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:15:09,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:15:09,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:15:09,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:15:09,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:15:09,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:15:09,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:15:09,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (1/1) ... [2019-11-23 22:15:09,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:15:09,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:15:09,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:15:09,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:15:09,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (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 22:15:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:15:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:15:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:15:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:15:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:15:09,729 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:15:09,729 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:15:09,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:15:09 BoogieIcfgContainer [2019-11-23 22:15:09,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:15:09,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:15:09,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:15:09,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:15:09,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:15:09" (1/3) ... [2019-11-23 22:15:09,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dac8398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:15:09, skipping insertion in model container [2019-11-23 22:15:09,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:15:09" (2/3) ... [2019-11-23 22:15:09,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dac8398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:15:09, skipping insertion in model container [2019-11-23 22:15:09,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:15:09" (3/3) ... [2019-11-23 22:15:09,758 INFO L109 eAbstractionObserver]: Analyzing ICFG nec40.c [2019-11-23 22:15:09,780 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:15:09,793 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:15:09,815 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:15:09,863 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:15:09,863 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:15:09,864 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:15:09,864 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:15:09,865 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:15:09,865 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:15:09,865 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:15:09,865 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:15:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-23 22:15:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:15:09,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:15:09,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:15:09,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:15:09,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:15:09,902 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2019-11-23 22:15:09,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:15:09,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304671537] [2019-11-23 22:15:09,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:15:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:15:10,092 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 22:15:10,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304671537] [2019-11-23 22:15:10,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:15:10,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:15:10,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387796495] [2019-11-23 22:15:10,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:15:10,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:15:10,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:15:10,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:15:10,111 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-11-23 22:15:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:15:10,124 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-23 22:15:10,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:15:10,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-23 22:15:10,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:15:10,136 INFO L225 Difference]: With dead ends: 24 [2019-11-23 22:15:10,136 INFO L226 Difference]: Without dead ends: 10 [2019-11-23 22:15:10,143 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 22:15:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-23 22:15:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-23 22:15:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 22:15:10,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-23 22:15:10,172 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-23 22:15:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:15:10,172 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-23 22:15:10,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:15:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-23 22:15:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 22:15:10,173 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:15:10,173 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:15:10,174 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:15:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:15:10,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2019-11-23 22:15:10,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:15:10,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868210573] [2019-11-23 22:15:10,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:15:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:15:10,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:15:10,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868210573] [2019-11-23 22:15:10,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:15:10,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:15:10,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103299314] [2019-11-23 22:15:10,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:15:10,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:15:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:15:10,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:15:10,260 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2019-11-23 22:15:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:15:10,294 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-23 22:15:10,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:15:10,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-23 22:15:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:15:10,296 INFO L225 Difference]: With dead ends: 18 [2019-11-23 22:15:10,296 INFO L226 Difference]: Without dead ends: 12 [2019-11-23 22:15:10,297 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 22:15:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-23 22:15:10,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-23 22:15:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-23 22:15:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-23 22:15:10,301 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-11-23 22:15:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:15:10,301 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-23 22:15:10,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:15:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-23 22:15:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-23 22:15:10,302 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:15:10,302 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:15:10,303 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:15:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:15:10,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2019-11-23 22:15:10,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:15:10,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242196988] [2019-11-23 22:15:10,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:15:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:15:10,364 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 22:15:10,370 INFO L168 Benchmark]: Toolchain (without parser) took 1355.01 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 137.0 MB in the end (delta: -34.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,371 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.43 ms. Allocated memory is still 137.9 MB. Free memory was 101.9 MB in the beginning and 91.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.09 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.7 MB in the beginning and 179.9 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,374 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 178.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,375 INFO L168 Benchmark]: RCFGBuilder took 269.91 ms. Allocated memory is still 201.3 MB. Free memory was 178.2 MB in the beginning and 164.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,376 INFO L168 Benchmark]: TraceAbstraction took 630.42 ms. Allocated memory is still 201.3 MB. Free memory was 164.0 MB in the beginning and 137.0 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:15:10,382 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 302.43 ms. Allocated memory is still 137.9 MB. Free memory was 101.9 MB in the beginning and 91.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 118.09 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.7 MB in the beginning and 179.9 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.43 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 178.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 269.91 ms. Allocated memory is still 201.3 MB. Free memory was 178.2 MB in the beginning and 164.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 630.42 ms. Allocated memory is still 201.3 MB. Free memory was 164.0 MB in the beginning and 137.0 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 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...