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+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:03:18,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:03:18,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:03:18,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-16 17:03:18,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:03:18,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:03:18,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:03:19,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:03:19,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:03:19,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:03:19,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:03:19,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:03:19,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:03:19,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:03:19,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:03:19,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:03:19,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:03:19,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:03:19,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:03:19,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:03:19,037 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 17:03:19,074 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:03:19,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:03:19,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:03:19,075 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:03:19,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:03:19,076 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:03:19,076 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:03:19,076 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:03:19,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:03:19,077 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:03:19,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:03:19,080 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:03:19,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:03:19,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:03:19,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:03:19,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:03:19,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:03:19,081 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:03:19,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:03:19,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:03:19,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:03:19,082 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:03:19,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:03:19,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:03:19,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:03:19,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:03:19,086 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:03:19,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:03:19,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:03:19,087 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:03:19,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:03:19,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:03:19,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:03:19,140 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:03:19,140 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:03:19,141 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2019-09-16 17:03:19,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a5ebdb2/418d8a613769408fab24c646ea537151/FLAGbdb7b1008 [2019-09-16 17:03:19,724 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:03:19,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2019-09-16 17:03:19,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a5ebdb2/418d8a613769408fab24c646ea537151/FLAGbdb7b1008 [2019-09-16 17:03:19,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a5ebdb2/418d8a613769408fab24c646ea537151 [2019-09-16 17:03:19,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:03:19,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:03:19,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:03:19,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:03:19,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:03:19,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:19,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4198e4b3 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 17:03:19,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:03:19" (1/1) ... [2019-09-16 17:03:20,006 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:03:20,079 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:03:20,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:03:20,773 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:03:20,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:03:21,011 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:03:21,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21 WrapperNode [2019-09-16 17:03:21,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:03:21,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:03:21,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:03:21,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:03:21,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (1/1) ... [2019-09-16 17:03:21,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:03:21,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:03:21,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:03:21,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:03:21,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (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 17:03:21,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:03:21,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:03:21,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:03:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:03:22,648 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:03:22,649 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:03:22,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:03:22 BoogieIcfgContainer [2019-09-16 17:03:22,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:03:22,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:03:22,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:03:22,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:03:22,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:03:19" (1/3) ... [2019-09-16 17:03:22,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d78003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:03:22, skipping insertion in model container [2019-09-16 17:03:22,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:21" (2/3) ... [2019-09-16 17:03:22,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d78003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:03:22, skipping insertion in model container [2019-09-16 17:03:22,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:03:22" (3/3) ... [2019-09-16 17:03:22,665 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2019-09-16 17:03:22,677 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:03:22,688 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-09-16 17:03:22,707 INFO L252 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-09-16 17:03:22,742 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:03:22,743 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:03:22,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:03:22,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:03:22,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:03:22,744 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:03:22,744 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:03:22,745 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:03:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2019-09-16 17:03:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-16 17:03:22,795 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:22,796 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:22,799 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:22,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:22,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1490721617, now seen corresponding path program 1 times [2019-09-16 17:03:22,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:22,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:22,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:22,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:23,079 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 17:03:23,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:23,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:23,082 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:23,088 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:23,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:23,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:23,109 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 4 states. [2019-09-16 17:03:24,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:24,056 INFO L93 Difference]: Finished difference Result 313 states and 558 transitions. [2019-09-16 17:03:24,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:24,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-09-16 17:03:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:24,084 INFO L225 Difference]: With dead ends: 313 [2019-09-16 17:03:24,084 INFO L226 Difference]: Without dead ends: 302 [2019-09-16 17:03:24,086 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 17:03:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-09-16 17:03:24,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-09-16 17:03:24,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-09-16 17:03:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 425 transitions. [2019-09-16 17:03:24,153 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 425 transitions. Word has length 11 [2019-09-16 17:03:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:24,154 INFO L475 AbstractCegarLoop]: Abstraction has 302 states and 425 transitions. [2019-09-16 17:03:24,154 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 425 transitions. [2019-09-16 17:03:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 17:03:24,155 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:24,155 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:24,156 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:24,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1032267068, now seen corresponding path program 1 times [2019-09-16 17:03:24,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:24,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:24,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:24,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:24,159 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:24,229 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 17:03:24,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:24,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:24,230 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:24,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:24,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:24,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:24,232 INFO L87 Difference]: Start difference. First operand 302 states and 425 transitions. Second operand 4 states. [2019-09-16 17:03:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:24,731 INFO L93 Difference]: Finished difference Result 307 states and 430 transitions. [2019-09-16 17:03:24,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:24,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 17:03:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:24,736 INFO L225 Difference]: With dead ends: 307 [2019-09-16 17:03:24,736 INFO L226 Difference]: Without dead ends: 304 [2019-09-16 17:03:24,737 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 17:03:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-09-16 17:03:24,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 297. [2019-09-16 17:03:24,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2019-09-16 17:03:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 360 transitions. [2019-09-16 17:03:24,755 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 360 transitions. Word has length 12 [2019-09-16 17:03:24,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:24,755 INFO L475 AbstractCegarLoop]: Abstraction has 297 states and 360 transitions. [2019-09-16 17:03:24,755 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 360 transitions. [2019-09-16 17:03:24,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 17:03:24,756 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:24,756 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:24,757 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:24,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1016017071, now seen corresponding path program 1 times [2019-09-16 17:03:24,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:24,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:24,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:24,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:24,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:24,795 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 17:03:24,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:24,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:24,796 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:24,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:24,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:24,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:24,797 INFO L87 Difference]: Start difference. First operand 297 states and 360 transitions. Second operand 4 states. [2019-09-16 17:03:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:25,379 INFO L93 Difference]: Finished difference Result 295 states and 358 transitions. [2019-09-16 17:03:25,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:25,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 17:03:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:25,382 INFO L225 Difference]: With dead ends: 295 [2019-09-16 17:03:25,383 INFO L226 Difference]: Without dead ends: 295 [2019-09-16 17:03:25,383 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 17:03:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-09-16 17:03:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2019-09-16 17:03:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2019-09-16 17:03:25,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 358 transitions. [2019-09-16 17:03:25,397 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 358 transitions. Word has length 12 [2019-09-16 17:03:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:25,397 INFO L475 AbstractCegarLoop]: Abstraction has 295 states and 358 transitions. [2019-09-16 17:03:25,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 358 transitions. [2019-09-16 17:03:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 17:03:25,398 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:25,398 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:25,401 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:25,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:25,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1431755048, now seen corresponding path program 1 times [2019-09-16 17:03:25,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:25,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:25,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:25,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:25,405 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:25,440 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 17:03:25,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:25,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:25,440 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:25,441 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:25,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:25,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:25,442 INFO L87 Difference]: Start difference. First operand 295 states and 358 transitions. Second operand 4 states. [2019-09-16 17:03:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:25,835 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2019-09-16 17:03:25,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:03:25,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-09-16 17:03:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:25,839 INFO L225 Difference]: With dead ends: 298 [2019-09-16 17:03:25,839 INFO L226 Difference]: Without dead ends: 298 [2019-09-16 17:03:25,840 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 17:03:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-09-16 17:03:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2019-09-16 17:03:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-09-16 17:03:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 361 transitions. [2019-09-16 17:03:25,855 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 361 transitions. Word has length 13 [2019-09-16 17:03:25,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:25,855 INFO L475 AbstractCegarLoop]: Abstraction has 298 states and 361 transitions. [2019-09-16 17:03:25,855 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:25,855 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 361 transitions. [2019-09-16 17:03:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-16 17:03:25,856 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:25,856 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:25,857 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:25,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1526969604, now seen corresponding path program 1 times [2019-09-16 17:03:25,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:25,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:25,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:25,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:25,860 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:25,922 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 17:03:25,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:25,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:03:25,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:25,924 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:03:25,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:03:25,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:03:25,924 INFO L87 Difference]: Start difference. First operand 298 states and 361 transitions. Second operand 5 states. [2019-09-16 17:03:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:26,503 INFO L93 Difference]: Finished difference Result 296 states and 359 transitions. [2019-09-16 17:03:26,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:03:26,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-09-16 17:03:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:26,506 INFO L225 Difference]: With dead ends: 296 [2019-09-16 17:03:26,507 INFO L226 Difference]: Without dead ends: 296 [2019-09-16 17:03:26,507 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 17:03:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-09-16 17:03:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2019-09-16 17:03:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2019-09-16 17:03:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 359 transitions. [2019-09-16 17:03:26,516 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 359 transitions. Word has length 15 [2019-09-16 17:03:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:26,516 INFO L475 AbstractCegarLoop]: Abstraction has 296 states and 359 transitions. [2019-09-16 17:03:26,516 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:03:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 359 transitions. [2019-09-16 17:03:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-16 17:03:26,517 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:26,517 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:26,518 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:26,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:26,518 INFO L82 PathProgramCache]: Analyzing trace with hash -91414371, now seen corresponding path program 1 times [2019-09-16 17:03:26,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:26,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:26,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:26,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:26,522 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:26,567 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 17:03:26,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:26,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:03:26,567 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:26,568 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:03:26,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:03:26,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:03:26,569 INFO L87 Difference]: Start difference. First operand 296 states and 359 transitions. Second operand 4 states. [2019-09-16 17:03:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:03:27,010 INFO L93 Difference]: Finished difference Result 294 states and 357 transitions. [2019-09-16 17:03:27,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:03:27,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-16 17:03:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:03:27,013 INFO L225 Difference]: With dead ends: 294 [2019-09-16 17:03:27,013 INFO L226 Difference]: Without dead ends: 292 [2019-09-16 17:03:27,013 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 17:03:27,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-09-16 17:03:27,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2019-09-16 17:03:27,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-09-16 17:03:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2019-09-16 17:03:27,023 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 16 [2019-09-16 17:03:27,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:03:27,023 INFO L475 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2019-09-16 17:03:27,023 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:03:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2019-09-16 17:03:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-16 17:03:27,025 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:27,025 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 17:03:27,026 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:27,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:27,026 INFO L82 PathProgramCache]: Analyzing trace with hash -922816985, now seen corresponding path program 1 times [2019-09-16 17:03:27,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:27,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:27,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:27,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:27,030 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:27,089 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-16 17:03:27,097 INFO L168 Benchmark]: Toolchain (without parser) took 7111.17 ms. Allocated memory was 136.8 MB in the beginning and 300.9 MB in the end (delta: 164.1 MB). Free memory was 90.9 MB in the beginning and 88.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 166.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:27,098 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory is still 110.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:03:27,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1025.20 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 90.4 MB in the beginning and 157.9 MB in the end (delta: -67.4 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:27,107 INFO L168 Benchmark]: Boogie Preprocessor took 127.18 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 152.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:27,110 INFO L168 Benchmark]: RCFGBuilder took 1512.04 ms. Allocated memory was 201.3 MB in the beginning and 234.4 MB in the end (delta: 33.0 MB). Free memory was 152.4 MB in the beginning and 106.4 MB in the end (delta: 46.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:27,113 INFO L168 Benchmark]: TraceAbstraction took 4440.33 ms. Allocated memory was 234.4 MB in the beginning and 300.9 MB in the end (delta: 66.6 MB). Free memory was 106.4 MB in the beginning and 88.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:03:27,120 INFO L335 ainManager$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 136.8 MB. Free memory is still 110.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1025.20 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 90.4 MB in the beginning and 157.9 MB in the end (delta: -67.4 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.18 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 152.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1512.04 ms. Allocated memory was 201.3 MB in the beginning and 234.4 MB in the end (delta: 33.0 MB). Free memory was 152.4 MB in the beginning and 106.4 MB in the end (delta: 46.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4440.33 ms. Allocated memory was 234.4 MB in the beginning and 300.9 MB in the end (delta: 66.6 MB). Free memory was 106.4 MB in the beginning and 88.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 84.6 MB. 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...