/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/array-tiling/revcpyswp2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:27:57,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:27:57,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:27:57,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:27:57,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:27:57,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:27:57,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:27:57,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:27:57,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:27:57,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:27:57,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:27:57,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:27:57,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:27:57,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:27:57,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:27:57,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:27:57,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:27:57,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:27:57,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:27:57,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:27:57,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:27:57,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:27:57,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:27:57,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:27:57,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:27:57,956 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 [2019-11-06 22:27:57,988 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:27:57,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:27:57,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:27:57,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:27:57,990 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:27:57,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:27:57,991 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:27:57,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:27:57,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:27:57,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:27:57,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:27:57,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:27:57,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:27:57,992 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:27:57,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:27:57,992 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:27:57,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:27:57,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:27:57,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:27:57,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:27:57,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:27:57,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:27:57,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:27:57,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:27:57,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:27:57,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:27:57,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:27:57,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:27:57,995 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 [2019-11-06 22:27:58,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:27:58,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:27:58,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:27:58,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:27:58,295 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:27:58,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/revcpyswp2.c [2019-11-06 22:27:58,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87836a7ad/f1c22835ca1a468a95e95ef01133a660/FLAGcccacef86 [2019-11-06 22:27:58,850 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:27:58,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/revcpyswp2.c [2019-11-06 22:27:58,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87836a7ad/f1c22835ca1a468a95e95ef01133a660/FLAGcccacef86 [2019-11-06 22:27:59,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87836a7ad/f1c22835ca1a468a95e95ef01133a660 [2019-11-06 22:27:59,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:27:59,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:27:59,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:27:59,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:27:59,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:27:59,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ab021a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59, skipping insertion in model container [2019-11-06 22:27:59,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,234 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:27:59,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:27:59,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:27:59,461 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:27:59,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:27:59,593 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:27:59,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59 WrapperNode [2019-11-06 22:27:59,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:27:59,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:27:59,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:27:59,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:27:59,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (1/1) ... [2019-11-06 22:27:59,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:27:59,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:27:59,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:27:59,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:27:59,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (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 [2019-11-06 22:27:59,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:27:59,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:27:59,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:27:59,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:27:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:27:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 22:27:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:27:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:27:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:27:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:27:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:27:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:27:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:27:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:27:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:27:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:28:00,048 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:28:00,048 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:28:00,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:00 BoogieIcfgContainer [2019-11-06 22:28:00,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:28:00,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:28:00,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:28:00,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:28:00,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:27:59" (1/3) ... [2019-11-06 22:28:00,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc05c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:28:00, skipping insertion in model container [2019-11-06 22:28:00,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:59" (2/3) ... [2019-11-06 22:28:00,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc05c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:28:00, skipping insertion in model container [2019-11-06 22:28:00,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:00" (3/3) ... [2019-11-06 22:28:00,066 INFO L109 eAbstractionObserver]: Analyzing ICFG revcpyswp2.c [2019-11-06 22:28:00,080 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:28:00,090 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:28:00,113 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:28:00,139 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:28:00,139 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:28:00,139 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:28:00,140 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:28:00,140 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:28:00,140 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:28:00,140 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:28:00,140 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:28:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-06 22:28:00,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-06 22:28:00,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:28:00,167 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:28:00,170 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:28:00,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:28:00,174 INFO L82 PathProgramCache]: Analyzing trace with hash -285010775, now seen corresponding path program 1 times [2019-11-06 22:28:00,182 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:28:00,182 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661175557] [2019-11-06 22:28:00,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:28:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:28:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:28:00,333 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661175557] [2019-11-06 22:28:00,334 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:28:00,335 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:28:00,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960941000] [2019-11-06 22:28:00,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:28:00,343 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:28:00,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:28:00,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:28:00,370 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-06 22:28:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:28:00,399 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2019-11-06 22:28:00,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:28:00,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-11-06 22:28:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:28:00,410 INFO L225 Difference]: With dead ends: 59 [2019-11-06 22:28:00,410 INFO L226 Difference]: Without dead ends: 29 [2019-11-06 22:28:00,414 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 [2019-11-06 22:28:00,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-06 22:28:00,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-06 22:28:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-06 22:28:00,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-11-06 22:28:00,480 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2019-11-06 22:28:00,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:28:00,481 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-11-06 22:28:00,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:28:00,482 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-11-06 22:28:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-06 22:28:00,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:28:00,485 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:28:00,485 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:28:00,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:28:00,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1627005719, now seen corresponding path program 1 times [2019-11-06 22:28:00,486 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:28:00,488 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021051634] [2019-11-06 22:28:00,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:28:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:28:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:28:00,634 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021051634] [2019-11-06 22:28:00,634 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:28:00,635 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:28:00,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841389830] [2019-11-06 22:28:00,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:28:00,637 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:28:00,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:28:00,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:28:00,638 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2019-11-06 22:28:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:28:00,725 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2019-11-06 22:28:00,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:28:00,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-06 22:28:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:28:00,727 INFO L225 Difference]: With dead ends: 51 [2019-11-06 22:28:00,727 INFO L226 Difference]: Without dead ends: 31 [2019-11-06 22:28:00,728 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 [2019-11-06 22:28:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-06 22:28:00,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-11-06 22:28:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-06 22:28:00,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2019-11-06 22:28:00,736 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20 [2019-11-06 22:28:00,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:28:00,736 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2019-11-06 22:28:00,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:28:00,736 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2019-11-06 22:28:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-06 22:28:00,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:28:00,738 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:28:00,738 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:28:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:28:00,739 INFO L82 PathProgramCache]: Analyzing trace with hash -381446827, now seen corresponding path program 1 times [2019-11-06 22:28:00,739 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:28:00,739 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221751502] [2019-11-06 22:28:00,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:28:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:28:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:28:00,817 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221751502] [2019-11-06 22:28:00,818 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:28:00,818 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:28:00,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500238803] [2019-11-06 22:28:00,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:28:00,819 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:28:00,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:28:00,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:28:00,821 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 4 states. [2019-11-06 22:28:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:28:00,930 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2019-11-06 22:28:00,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:28:00,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-11-06 22:28:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:28:00,935 INFO L225 Difference]: With dead ends: 58 [2019-11-06 22:28:00,935 INFO L226 Difference]: Without dead ends: 41 [2019-11-06 22:28:00,936 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:28:00,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-06 22:28:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2019-11-06 22:28:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-06 22:28:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2019-11-06 22:28:00,948 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2019-11-06 22:28:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:28:00,948 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-11-06 22:28:00,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:28:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2019-11-06 22:28:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-06 22:28:00,949 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:28:00,950 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:28:00,950 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:28:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:28:00,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1677394545, now seen corresponding path program 1 times [2019-11-06 22:28:00,951 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:28:00,951 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074963678] [2019-11-06 22:28:00,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:28:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:28:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:28:01,088 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074963678] [2019-11-06 22:28:01,089 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277438503] [2019-11-06 22:28:01,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:28:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:28:01,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:28:01,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:28:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:28:01,278 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:28:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:28:01,325 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [9058370] [2019-11-06 22:28:01,331 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 29 [2019-11-06 22:28:01,366 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:28:01,367 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:28:01,436 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:28:01,440 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 24 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 49 variables. [2019-11-06 22:28:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:28:01,444 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:28:01,493 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-11-06 22:28:01,493 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:28:01,510 INFO L553 sIntCurrentIteration]: We unified 27 AI predicates to 27 [2019-11-06 22:28:01,510 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:28:01,511 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:28:01,511 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 9 [2019-11-06 22:28:01,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831844383] [2019-11-06 22:28:01,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:28:01,512 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:28:01,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:28:01,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:28:01,513 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2019-11-06 22:28:01,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:28:01,722 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:28:01,723 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at least one of both input predicates is unknown: 401#true or 608#(= ~MAX~0 100000) ([#1{~MAX~0 = [100000;100000]; }]) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker$CheckHelper.check(SdHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker.checkCall(SdHoareTripleChecker.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.checkCall(EfficientHoareTripleChecker.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkCall(CachingHoareTripleChecker.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$CallSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:403) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1089) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:969) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) 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:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) 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) [2019-11-06 22:28:01,731 INFO L168 Benchmark]: Toolchain (without parser) took 2512.12 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 102.6 MB in the beginning and 186.0 MB in the end (delta: -83.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:28:01,736 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:28:01,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.00 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 181.9 MB in the end (delta: -79.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:28:01,740 INFO L168 Benchmark]: Boogie Preprocessor took 39.62 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 180.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:28:01,741 INFO L168 Benchmark]: RCFGBuilder took 416.89 ms. Allocated memory is still 203.9 MB. Free memory was 180.0 MB in the beginning and 160.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:28:01,742 INFO L168 Benchmark]: TraceAbstraction took 1670.44 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 160.9 MB in the beginning and 186.0 MB in the end (delta: -25.1 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:28:01,746 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 377.00 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 181.9 MB in the end (delta: -79.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.62 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 180.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 416.89 ms. Allocated memory is still 203.9 MB. Free memory was 180.0 MB in the beginning and 160.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1670.44 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 160.9 MB in the beginning and 186.0 MB in the end (delta: -25.1 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at least one of both input predicates is unknown: 401#true or 608#(= ~MAX~0 100000) ([#1{~MAX~0 = [100000;100000]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 401#true or 608#(= ~MAX~0 100000) ([#1{~MAX~0 = [100000;100000]; }]): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...