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/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:03:18,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:03:18,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:03:18,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-16 17:03:18,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:03:18,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:03:18,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:03:18,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:03:18,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:03:18,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:03:18,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:03:18,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:03:18,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:03:18,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:03:18,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:03:18,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:03:18,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:03:18,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:03:18,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:03:18,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:03:18,361 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 [2019-09-16 17:03:18,384 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:03:18,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:03:18,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:03:18,386 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:03:18,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:03:18,387 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:03:18,387 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:03:18,387 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:03:18,387 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:03:18,387 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:03:18,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:03:18,390 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:03:18,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:03:18,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:03:18,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:03:18,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:03:18,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:03:18,391 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:03:18,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:03:18,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:03:18,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:03:18,392 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:03:18,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:03:18,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:03:18,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:03:18,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:03:18,393 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:03:18,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:03:18,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:03:18,394 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:03:18,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:03:18,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:03:18,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:03:18,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:03:18,455 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:03:18,456 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2019-09-16 17:03:18,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8149b59/998d76394e4b46a6bea8b25cb7abf7e6/FLAGbc5f07cd4 [2019-09-16 17:03:18,987 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:03:18,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2019-09-16 17:03:18,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8149b59/998d76394e4b46a6bea8b25cb7abf7e6/FLAGbc5f07cd4 [2019-09-16 17:03:19,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8149b59/998d76394e4b46a6bea8b25cb7abf7e6 [2019-09-16 17:03:19,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:03:19,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:03:19,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:03:19,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:03:19,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:03:19,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134c3fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19, skipping insertion in model container [2019-09-16 17:03:19,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,366 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:03:19,408 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:03:19,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:03:19,788 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:03:19,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:03:19,876 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:03:19,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19 WrapperNode [2019-09-16 17:03:19,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:03:19,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:03:19,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:03:19,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:03:19,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:03:19,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:03:19,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:03:19,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:03:19,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (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 [2019-09-16 17:03:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:03:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:03:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:03:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:03:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:03:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 17:03:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:03:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:03:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:03:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:03:20,729 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:03:20,729 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:03:20,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:03:20 BoogieIcfgContainer [2019-09-16 17:03:20,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:03:20,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:03:20,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:03:20,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:03:20,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:03:19" (1/3) ... [2019-09-16 17:03:20,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a96068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:03:20, skipping insertion in model container [2019-09-16 17:03:20,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:19" (2/3) ... [2019-09-16 17:03:20,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a96068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:03:20, skipping insertion in model container [2019-09-16 17:03:20,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:03:20" (3/3) ... [2019-09-16 17:03:20,747 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2019-09-16 17:03:20,757 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:03:20,765 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-09-16 17:03:20,782 INFO L252 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-09-16 17:03:20,806 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:03:20,806 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:03:20,806 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:03:20,807 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:03:20,807 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:03:20,807 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:03:20,808 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:03:20,808 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:03:20,824 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-09-16 17:03:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-16 17:03:20,833 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:20,833 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:20,835 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:20,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:20,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1915845654, now seen corresponding path program 1 times [2019-09-16 17:03:20,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:20,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:20,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:20,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:20,889 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:21,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:21,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:21,030 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:21,034 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:21,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:21,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:21,049 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 4 states. [2019-09-16 17:03:21,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:21,452 INFO L93 Difference]: Finished difference Result 129 states and 190 transitions. [2019-09-16 17:03:21,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:21,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-09-16 17:03:21,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:21,472 INFO L225 Difference]: With dead ends: 129 [2019-09-16 17:03:21,473 INFO L226 Difference]: Without dead ends: 118 [2019-09-16 17:03:21,476 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-16 17:03:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-09-16 17:03:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-16 17:03:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2019-09-16 17:03:21,528 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 11 [2019-09-16 17:03:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:21,529 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 139 transitions. [2019-09-16 17:03:21,529 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2019-09-16 17:03:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 17:03:21,530 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:21,530 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:21,530 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:21,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:21,531 INFO L82 PathProgramCache]: Analyzing trace with hash 738329931, now seen corresponding path program 1 times [2019-09-16 17:03:21,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:21,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:21,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:21,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:21,534 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:21,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:21,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:21,586 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:21,587 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:21,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:21,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:21,588 INFO L87 Difference]: Start difference. First operand 118 states and 139 transitions. Second operand 4 states. [2019-09-16 17:03:21,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:21,780 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2019-09-16 17:03:21,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:21,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 17:03:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:21,782 INFO L225 Difference]: With dead ends: 116 [2019-09-16 17:03:21,782 INFO L226 Difference]: Without dead ends: 113 [2019-09-16 17:03:21,783 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-09-16 17:03:21,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-09-16 17:03:21,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-09-16 17:03:21,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2019-09-16 17:03:21,793 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 12 [2019-09-16 17:03:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:21,793 INFO L475 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2019-09-16 17:03:21,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2019-09-16 17:03:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-16 17:03:21,794 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:21,795 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:21,795 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:21,796 INFO L82 PathProgramCache]: Analyzing trace with hash -108000398, now seen corresponding path program 1 times [2019-09-16 17:03:21,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:21,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:21,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:21,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:21,798 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:21,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:21,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:03:21,880 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:21,881 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:03:21,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:03:21,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:21,881 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand 5 states. [2019-09-16 17:03:22,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:22,108 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2019-09-16 17:03:22,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:03:22,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-09-16 17:03:22,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:22,110 INFO L225 Difference]: With dead ends: 111 [2019-09-16 17:03:22,110 INFO L226 Difference]: Without dead ends: 111 [2019-09-16 17:03:22,111 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:03:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-09-16 17:03:22,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-09-16 17:03:22,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-09-16 17:03:22,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2019-09-16 17:03:22,126 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 15 [2019-09-16 17:03:22,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:22,127 INFO L475 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2019-09-16 17:03:22,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:03:22,127 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2019-09-16 17:03:22,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-16 17:03:22,128 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:22,132 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:22,132 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:22,133 INFO L82 PathProgramCache]: Analyzing trace with hash 946958050, now seen corresponding path program 1 times [2019-09-16 17:03:22,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:22,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:22,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:22,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:22,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:22,210 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:22,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:22,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:22,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:22,211 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand 4 states. [2019-09-16 17:03:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:22,336 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2019-09-16 17:03:22,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:22,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-16 17:03:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:22,338 INFO L225 Difference]: With dead ends: 109 [2019-09-16 17:03:22,338 INFO L226 Difference]: Without dead ends: 107 [2019-09-16 17:03:22,339 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-09-16 17:03:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-09-16 17:03:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-09-16 17:03:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2019-09-16 17:03:22,346 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 16 [2019-09-16 17:03:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:22,346 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2019-09-16 17:03:22,346 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2019-09-16 17:03:22,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-16 17:03:22,347 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:22,348 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:22,348 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:22,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:22,349 INFO L82 PathProgramCache]: Analyzing trace with hash -695803485, now seen corresponding path program 1 times [2019-09-16 17:03:22,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:22,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:22,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,351 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:22,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:22,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:22,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:03:22,416 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:22,417 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:03:22,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:03:22,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:22,418 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 5 states. [2019-09-16 17:03:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:22,627 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2019-09-16 17:03:22,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:03:22,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-09-16 17:03:22,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:22,629 INFO L225 Difference]: With dead ends: 123 [2019-09-16 17:03:22,629 INFO L226 Difference]: Without dead ends: 123 [2019-09-16 17:03:22,629 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:03:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-16 17:03:22,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 105. [2019-09-16 17:03:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-16 17:03:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2019-09-16 17:03:22,640 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 17 [2019-09-16 17:03:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:22,640 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2019-09-16 17:03:22,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:03:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2019-09-16 17:03:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-16 17:03:22,651 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:22,651 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:22,652 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash -694264285, now seen corresponding path program 1 times [2019-09-16 17:03:22,652 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:22,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:22,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,654 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:22,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:22,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:03:22,717 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:22,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:03:22,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:03:22,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:22,719 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 5 states. [2019-09-16 17:03:22,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:22,886 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2019-09-16 17:03:22,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:03:22,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-09-16 17:03:22,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:22,888 INFO L225 Difference]: With dead ends: 103 [2019-09-16 17:03:22,888 INFO L226 Difference]: Without dead ends: 103 [2019-09-16 17:03:22,889 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:03:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-09-16 17:03:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-09-16 17:03:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-09-16 17:03:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2019-09-16 17:03:22,894 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 17 [2019-09-16 17:03:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:22,894 INFO L475 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2019-09-16 17:03:22,895 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:03:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2019-09-16 17:03:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-16 17:03:22,896 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:22,896 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:22,896 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:22,897 INFO L82 PathProgramCache]: Analyzing trace with hash -95068443, now seen corresponding path program 1 times [2019-09-16 17:03:22,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:22,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:22,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,899 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:22,942 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: NonCoreBooleanSubTermTransformer does not support AnnotatedTerm at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.NonCoreBooleanSubTermTransformer$NonCoreBooleanSubtermTransformerHelper.convert(NonCoreBooleanSubTermTransformer.java:107) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.NonCoreBooleanSubTermTransformer.transform(NonCoreBooleanSubTermTransformer.java:51) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:87) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:585) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:461) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) 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) [2019-09-16 17:03:22,948 INFO L168 Benchmark]: Toolchain (without parser) took 3596.42 ms. Allocated memory was 131.6 MB in the beginning and 265.3 MB in the end (delta: 133.7 MB). Free memory was 86.0 MB in the beginning and 194.5 MB in the end (delta: -108.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:22,949 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:03:22,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.69 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 171.2 MB in the end (delta: -85.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:22,954 INFO L168 Benchmark]: Boogie Preprocessor took 89.04 ms. Allocated memory is still 199.2 MB. Free memory was 171.2 MB in the beginning and 168.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:22,955 INFO L168 Benchmark]: RCFGBuilder took 764.20 ms. Allocated memory is still 199.2 MB. Free memory was 168.3 MB in the beginning and 120.4 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:22,956 INFO L168 Benchmark]: TraceAbstraction took 2213.39 ms. Allocated memory was 199.2 MB in the beginning and 265.3 MB in the end (delta: 66.1 MB). Free memory was 120.4 MB in the beginning and 194.5 MB in the end (delta: -74.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:03:22,961 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 525.69 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 171.2 MB in the end (delta: -85.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.04 ms. Allocated memory is still 199.2 MB. Free memory was 171.2 MB in the beginning and 168.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 764.20 ms. Allocated memory is still 199.2 MB. Free memory was 168.3 MB in the beginning and 120.4 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2213.39 ms. Allocated memory was 199.2 MB in the beginning and 265.3 MB in the end (delta: 66.1 MB). Free memory was 120.4 MB in the beginning and 194.5 MB in the end (delta: -74.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: NonCoreBooleanSubTermTransformer does not support AnnotatedTerm de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: NonCoreBooleanSubTermTransformer does not support AnnotatedTerm: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.NonCoreBooleanSubTermTransformer$NonCoreBooleanSubtermTransformerHelper.convert(NonCoreBooleanSubTermTransformer.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...