java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 17:40:45,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 17:40:45,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 17:40:45,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-02 17:40:45,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 17:40:45,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 17:40:45,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 17:40:45,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 17:40:45,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 17:40:45,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 17:40:45,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 17:40:45,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 17:40:45,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 17:40:45,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 17:40:45,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 17:40:45,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 17:40:45,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 17:40:45,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 17:40:45,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 17:40:45,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 17:40:45,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 17:40:45,365 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 17:40:45,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 17:40:45,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 17:40:45,366 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 17:40:45,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 17:40:45,367 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 17:40:45,367 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 17:40:45,367 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 17:40:45,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 17:40:45,368 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 17:40:45,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 17:40:45,368 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 17:40:45,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 17:40:45,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 17:40:45,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 17:40:45,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 17:40:45,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 17:40:45,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 17:40:45,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 17:40:45,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 17:40:45,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 17:40:45,370 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 17:40:45,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 17:40:45,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 17:40:45,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 17:40:45,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 17:40:45,371 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 17:40:45,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 17:40:45,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 17:40:45,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 17:40:45,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 17:40:45,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 17:40:45,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 17:40:45,428 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 17:40:45,428 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 17:40:45,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2019-10-02 17:40:45,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e96d79d1/43deb7acdfdd4facb6fa02a529f86327/FLAGed43f7400 [2019-10-02 17:40:46,049 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 17:40:46,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2019-10-02 17:40:46,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e96d79d1/43deb7acdfdd4facb6fa02a529f86327/FLAGed43f7400 [2019-10-02 17:40:46,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e96d79d1/43deb7acdfdd4facb6fa02a529f86327 [2019-10-02 17:40:46,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 17:40:46,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 17:40:46,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 17:40:46,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 17:40:46,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 17:40:46,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:40:46" (1/1) ... [2019-10-02 17:40:46,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b0106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:46, skipping insertion in model container [2019-10-02 17:40:46,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:40:46" (1/1) ... [2019-10-02 17:40:46,304 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 17:40:46,360 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 17:40:46,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:40:46,868 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 17:40:47,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:40:47,049 INFO L192 MainTranslator]: Completed translation [2019-10-02 17:40:47,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47 WrapperNode [2019-10-02 17:40:47,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 17:40:47,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 17:40:47,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 17:40:47,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 17:40:47,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (1/1) ... [2019-10-02 17:40:47,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 17:40:47,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 17:40:47,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 17:40:47,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 17:40:47,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (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 [2019-10-02 17:40:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 17:40:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 17:40:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 17:40:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 17:40:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 17:40:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 17:40:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 17:40:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 17:40:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 17:40:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 17:40:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 17:40:48,417 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 17:40:48,418 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 17:40:48,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:40:48 BoogieIcfgContainer [2019-10-02 17:40:48,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 17:40:48,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 17:40:48,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 17:40:48,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 17:40:48,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 05:40:46" (1/3) ... [2019-10-02 17:40:48,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a85b30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:40:48, skipping insertion in model container [2019-10-02 17:40:48,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:40:47" (2/3) ... [2019-10-02 17:40:48,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a85b30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:40:48, skipping insertion in model container [2019-10-02 17:40:48,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:40:48" (3/3) ... [2019-10-02 17:40:48,430 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2019-10-02 17:40:48,442 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 17:40:48,452 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 17:40:48,473 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 17:40:48,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 17:40:48,508 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 17:40:48,508 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 17:40:48,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 17:40:48,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 17:40:48,509 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 17:40:48,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 17:40:48,509 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 17:40:48,548 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-10-02 17:40:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-02 17:40:48,573 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:40:48,574 INFO L411 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, 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, 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, 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] [2019-10-02 17:40:48,577 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:40:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:40:48,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1666327721, now seen corresponding path program 1 times [2019-10-02 17:40:48,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:40:48,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:48,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:40:48,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:48,646 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:40:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:40:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:40:49,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:40:49,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:40:49,118 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:40:49,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:40:49,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:40:49,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:40:49,147 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2019-10-02 17:40:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:40:50,095 INFO L93 Difference]: Finished difference Result 394 states and 575 transitions. [2019-10-02 17:40:50,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:40:50,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2019-10-02 17:40:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:40:50,134 INFO L225 Difference]: With dead ends: 394 [2019-10-02 17:40:50,134 INFO L226 Difference]: Without dead ends: 326 [2019-10-02 17:40:50,138 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:40:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-02 17:40:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 321. [2019-10-02 17:40:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-10-02 17:40:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 467 transitions. [2019-10-02 17:40:50,258 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 467 transitions. Word has length 111 [2019-10-02 17:40:50,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:40:50,260 INFO L475 AbstractCegarLoop]: Abstraction has 321 states and 467 transitions. [2019-10-02 17:40:50,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:40:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 467 transitions. [2019-10-02 17:40:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-02 17:40:50,273 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:40:50,273 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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, 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, 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] [2019-10-02 17:40:50,274 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:40:50,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:40:50,274 INFO L82 PathProgramCache]: Analyzing trace with hash 2094723630, now seen corresponding path program 1 times [2019-10-02 17:40:50,275 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:40:50,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:50,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:40:50,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:50,277 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:40:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:40:50,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:40:50,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:40:50,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 17:40:50,466 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:40:50,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 17:40:50,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 17:40:50,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:40:50,469 INFO L87 Difference]: Start difference. First operand 321 states and 467 transitions. Second operand 4 states. [2019-10-02 17:40:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:40:51,588 INFO L93 Difference]: Finished difference Result 904 states and 1250 transitions. [2019-10-02 17:40:51,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 17:40:51,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-02 17:40:51,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:40:51,597 INFO L225 Difference]: With dead ends: 904 [2019-10-02 17:40:51,597 INFO L226 Difference]: Without dead ends: 904 [2019-10-02 17:40:51,598 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:40:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2019-10-02 17:40:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 755. [2019-10-02 17:40:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2019-10-02 17:40:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1063 transitions. [2019-10-02 17:40:51,661 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1063 transitions. Word has length 119 [2019-10-02 17:40:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:40:51,661 INFO L475 AbstractCegarLoop]: Abstraction has 755 states and 1063 transitions. [2019-10-02 17:40:51,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 17:40:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1063 transitions. [2019-10-02 17:40:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-02 17:40:51,666 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:40:51,667 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:40:51,667 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:40:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:40:51,668 INFO L82 PathProgramCache]: Analyzing trace with hash -30959147, now seen corresponding path program 1 times [2019-10-02 17:40:51,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:40:51,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:51,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:40:51,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:51,675 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:40:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:40:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:40:51,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:40:51,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 17:40:51,993 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:40:51,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 17:40:51,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 17:40:51,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 17:40:51,997 INFO L87 Difference]: Start difference. First operand 755 states and 1063 transitions. Second operand 5 states. [2019-10-02 17:40:52,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:40:52,871 INFO L93 Difference]: Finished difference Result 839 states and 1149 transitions. [2019-10-02 17:40:52,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 17:40:52,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2019-10-02 17:40:52,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:40:52,883 INFO L225 Difference]: With dead ends: 839 [2019-10-02 17:40:52,883 INFO L226 Difference]: Without dead ends: 755 [2019-10-02 17:40:52,884 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 17:40:52,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2019-10-02 17:40:52,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2019-10-02 17:40:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2019-10-02 17:40:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1049 transitions. [2019-10-02 17:40:52,919 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1049 transitions. Word has length 135 [2019-10-02 17:40:52,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:40:52,928 INFO L475 AbstractCegarLoop]: Abstraction has 755 states and 1049 transitions. [2019-10-02 17:40:52,928 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 17:40:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1049 transitions. [2019-10-02 17:40:52,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-02 17:40:52,934 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:40:52,935 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2019-10-02 17:40:52,935 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:40:52,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:40:52,936 INFO L82 PathProgramCache]: Analyzing trace with hash -906165834, now seen corresponding path program 1 times [2019-10-02 17:40:52,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:40:52,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:52,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:40:52,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:40:52,939 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:40:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:40:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 40 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 17:40:53,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 17:40:53,089 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 17:40:53,090 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2019-10-02 17:40:53,093 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2019-10-02 17:40:53,154 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 17:40:53,154 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 17:42:59,317 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 17:42:59,319 INFO L272 AbstractInterpreter]: Visited 112 different actions 112 times. Never merged. Never widened. Performed 177 root evaluator evaluations with a maximum evaluation depth of 18. Performed 177 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Never found a fixpoint. Largest state had 38 variables. [2019-10-02 17:42:59,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:42:59,323 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 17:44:58,841 INFO L227 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 80.77% of their original sizes. [2019-10-02 17:44:58,841 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 17:44:58,933 INFO L420 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2019-10-02 17:44:58,933 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 17:44:58,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 17:44:58,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2019-10-02 17:44:58,934 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:44:58,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 17:44:58,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 17:44:58,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-02 17:44:58,936 INFO L87 Difference]: Start difference. First operand 755 states and 1049 transitions. Second operand 11 states. [2019-10-02 17:45:09,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 17:45:09,674 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable ~a25~0. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:83) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:89) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:90) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:90) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:88) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalEvaluator.evaluate(NonrelationalEvaluator.java:81) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:297) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:156) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:250) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) 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.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) 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:708) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:637) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:467) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) 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) [2019-10-02 17:45:09,681 INFO L168 Benchmark]: Toolchain (without parser) took 263392.87 ms. Allocated memory was 138.9 MB in the beginning and 421.0 MB in the end (delta: 282.1 MB). Free memory was 85.2 MB in the beginning and 220.7 MB in the end (delta: -135.6 MB). Peak memory consumption was 146.5 MB. Max. memory is 7.1 GB. [2019-10-02 17:45:09,682 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 17:45:09,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.88 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 85.0 MB in the beginning and 167.7 MB in the end (delta: -82.7 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2019-10-02 17:45:09,684 INFO L168 Benchmark]: Boogie Preprocessor took 109.33 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 162.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-10-02 17:45:09,685 INFO L168 Benchmark]: RCFGBuilder took 1259.06 ms. Allocated memory was 201.9 MB in the beginning and 224.4 MB in the end (delta: 22.5 MB). Free memory was 162.3 MB in the beginning and 179.4 MB in the end (delta: -17.0 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. [2019-10-02 17:45:09,686 INFO L168 Benchmark]: TraceAbstraction took 261257.68 ms. Allocated memory was 224.4 MB in the beginning and 421.0 MB in the end (delta: 196.6 MB). Free memory was 178.0 MB in the beginning and 220.7 MB in the end (delta: -42.7 MB). Peak memory consumption was 153.9 MB. Max. memory is 7.1 GB. [2019-10-02 17:45:09,691 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 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.88 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 85.0 MB in the beginning and 167.7 MB in the end (delta: -82.7 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.33 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 162.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1259.06 ms. Allocated memory was 201.9 MB in the beginning and 224.4 MB in the end (delta: 22.5 MB). Free memory was 162.3 MB in the beginning and 179.4 MB in the end (delta: -17.0 MB). Peak memory consumption was 93.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261257.68 ms. Allocated memory was 224.4 MB in the beginning and 421.0 MB in the end (delta: 196.6 MB). Free memory was 178.0 MB in the beginning and 220.7 MB in the end (delta: -42.7 MB). Peak memory consumption was 153.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable ~a25~0. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable ~a25~0.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...