/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:32:17,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:32:17,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:32:17,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:32:17,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:32:17,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:32:17,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:32:17,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:32:17,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:32:17,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:32:17,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:32:17,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:32:17,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:32:17,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:32:17,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:32:17,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:32:17,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:32:17,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:32:17,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:32:17,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:32:17,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:32:17,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:32:17,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:32:17,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:32:17,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:32:17,960 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:32:17,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:32:17,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:32:17,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:32:17,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:32:17,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:32:17,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:32:17,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:32:17,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:32:17,966 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:32:17,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:32:17,966 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:32:17,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:32:17,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:32:17,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:32:17,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:32:17,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:32:17,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:32:17,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:32:17,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:32:17,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:32:17,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:32:17,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:32:17,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:32:17,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:32:18,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:32:18,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:32:18,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:32:18,255 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:32:18,255 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:32:18,256 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label59.c [2019-11-06 22:32:18,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691a37609/29f597af691344ccb700aeb7de97c4fc/FLAG89ce9fff8 [2019-11-06 22:32:18,919 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:32:18,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label59.c [2019-11-06 22:32:18,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691a37609/29f597af691344ccb700aeb7de97c4fc/FLAG89ce9fff8 [2019-11-06 22:32:19,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691a37609/29f597af691344ccb700aeb7de97c4fc [2019-11-06 22:32:19,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:32:19,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:32:19,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:32:19,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:32:19,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:32:19,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d04c9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19, skipping insertion in model container [2019-11-06 22:32:19,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,208 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:32:19,256 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:32:19,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:32:19,739 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:32:19,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:32:19,855 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:32:19,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19 WrapperNode [2019-11-06 22:32:19,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:32:19,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:32:19,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:32:19,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:32:19,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2019-11-06 22:32:19,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:32:19,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:32:19,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:32:19,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:32:19,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (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 [2019-11-06 22:32:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:32:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:32:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:32:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:32:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:32:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:32:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:32:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:32:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:32:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:32:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:32:21,248 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:32:21,248 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:32:21,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:21 BoogieIcfgContainer [2019-11-06 22:32:21,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:32:21,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:32:21,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:32:21,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:32:21,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:19" (1/3) ... [2019-11-06 22:32:21,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ffa56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:21, skipping insertion in model container [2019-11-06 22:32:21,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (2/3) ... [2019-11-06 22:32:21,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ffa56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:21, skipping insertion in model container [2019-11-06 22:32:21,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:21" (3/3) ... [2019-11-06 22:32:21,269 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label59.c [2019-11-06 22:32:21,280 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:32:21,290 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:32:21,302 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:32:21,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:32:21,337 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:32:21,338 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:32:21,338 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:32:21,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:32:21,338 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:32:21,338 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:32:21,339 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:32:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-11-06 22:32:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-11-06 22:32:21,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:32:21,394 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:32:21,396 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:32:21,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:32:21,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1907034097, now seen corresponding path program 1 times [2019-11-06 22:32:21,413 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:32:21,413 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643554057] [2019-11-06 22:32:21,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:32:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:21,907 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643554057] [2019-11-06 22:32:21,908 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:32:21,908 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:32:21,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418645631] [2019-11-06 22:32:21,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:32:21,922 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:32:21,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:32:21,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:32:21,939 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2019-11-06 22:32:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:32:22,848 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2019-11-06 22:32:22,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:32:22,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-11-06 22:32:22,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:32:22,875 INFO L225 Difference]: With dead ends: 547 [2019-11-06 22:32:22,875 INFO L226 Difference]: Without dead ends: 278 [2019-11-06 22:32:22,886 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:32:22,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-06 22:32:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-06 22:32:22,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-06 22:32:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2019-11-06 22:32:22,965 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 95 [2019-11-06 22:32:22,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:32:22,966 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2019-11-06 22:32:22,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:32:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2019-11-06 22:32:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-11-06 22:32:22,973 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:32:22,973 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:32:22,974 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:32:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:32:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash -2120846440, now seen corresponding path program 1 times [2019-11-06 22:32:22,974 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:32:22,975 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309324997] [2019-11-06 22:32:22,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:32:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:23,153 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309324997] [2019-11-06 22:32:23,153 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:32:23,153 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:32:23,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207974829] [2019-11-06 22:32:23,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:32:23,155 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:32:23,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:32:23,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:32:23,156 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2019-11-06 22:32:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:32:23,896 INFO L93 Difference]: Finished difference Result 703 states and 1026 transitions. [2019-11-06 22:32:23,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:32:23,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2019-11-06 22:32:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:32:23,902 INFO L225 Difference]: With dead ends: 703 [2019-11-06 22:32:23,902 INFO L226 Difference]: Without dead ends: 431 [2019-11-06 22:32:23,904 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:32:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-11-06 22:32:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 419. [2019-11-06 22:32:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-11-06 22:32:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 588 transitions. [2019-11-06 22:32:23,939 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 588 transitions. Word has length 105 [2019-11-06 22:32:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:32:23,939 INFO L462 AbstractCegarLoop]: Abstraction has 419 states and 588 transitions. [2019-11-06 22:32:23,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:32:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 588 transitions. [2019-11-06 22:32:23,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-11-06 22:32:23,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:32:23,945 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:32:23,945 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:32:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:32:23,946 INFO L82 PathProgramCache]: Analyzing trace with hash -588378602, now seen corresponding path program 1 times [2019-11-06 22:32:23,946 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:32:23,946 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528407037] [2019-11-06 22:32:23,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:32:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:24,159 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528407037] [2019-11-06 22:32:24,159 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027060480] [2019-11-06 22:32:24,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:32:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:24,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:32:24,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:32:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:24,380 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:32:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:24,457 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:32:24,457 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2019-11-06 22:32:24,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955513180] [2019-11-06 22:32:24,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:32:24,465 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:32:24,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:32:24,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:32:24,466 INFO L87 Difference]: Start difference. First operand 419 states and 588 transitions. Second operand 4 states. [2019-11-06 22:32:25,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:32:25,293 INFO L93 Difference]: Finished difference Result 1513 states and 2201 transitions. [2019-11-06 22:32:25,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:32:25,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2019-11-06 22:32:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:32:25,302 INFO L225 Difference]: With dead ends: 1513 [2019-11-06 22:32:25,302 INFO L226 Difference]: Without dead ends: 1100 [2019-11-06 22:32:25,304 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:32:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2019-11-06 22:32:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 828. [2019-11-06 22:32:25,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2019-11-06 22:32:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1095 transitions. [2019-11-06 22:32:25,365 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1095 transitions. Word has length 106 [2019-11-06 22:32:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:32:25,366 INFO L462 AbstractCegarLoop]: Abstraction has 828 states and 1095 transitions. [2019-11-06 22:32:25,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:32:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1095 transitions. [2019-11-06 22:32:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-06 22:32:25,370 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:32:25,371 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:32:25,576 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:32:25,582 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:32:25,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:32:25,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1198986894, now seen corresponding path program 1 times [2019-11-06 22:32:25,583 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:32:25,583 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128247043] [2019-11-06 22:32:25,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:32:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:25,746 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128247043] [2019-11-06 22:32:25,747 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:32:25,747 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:32:25,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471880872] [2019-11-06 22:32:25,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:32:25,748 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:32:25,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:32:25,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:32:25,749 INFO L87 Difference]: Start difference. First operand 828 states and 1095 transitions. Second operand 6 states. [2019-11-06 22:32:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:32:26,504 INFO L93 Difference]: Finished difference Result 1958 states and 2637 transitions. [2019-11-06 22:32:26,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:32:26,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2019-11-06 22:32:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:32:26,511 INFO L225 Difference]: With dead ends: 1958 [2019-11-06 22:32:26,511 INFO L226 Difference]: Without dead ends: 1136 [2019-11-06 22:32:26,513 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:32:26,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2019-11-06 22:32:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 850. [2019-11-06 22:32:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2019-11-06 22:32:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1044 transitions. [2019-11-06 22:32:26,549 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1044 transitions. Word has length 120 [2019-11-06 22:32:26,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:32:26,550 INFO L462 AbstractCegarLoop]: Abstraction has 850 states and 1044 transitions. [2019-11-06 22:32:26,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:32:26,550 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1044 transitions. [2019-11-06 22:32:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-11-06 22:32:26,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:32:26,553 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:32:26,554 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:32:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:32:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1483997624, now seen corresponding path program 1 times [2019-11-06 22:32:26,554 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:32:26,555 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636199742] [2019-11-06 22:32:26,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:32:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:26,716 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636199742] [2019-11-06 22:32:26,717 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:32:26,717 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:32:26,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548968905] [2019-11-06 22:32:26,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:32:26,721 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:32:26,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:32:26,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:32:26,722 INFO L87 Difference]: Start difference. First operand 850 states and 1044 transitions. Second operand 3 states. [2019-11-06 22:32:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:32:27,286 INFO L93 Difference]: Finished difference Result 2381 states and 2989 transitions. [2019-11-06 22:32:27,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:32:27,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-11-06 22:32:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:32:27,299 INFO L225 Difference]: With dead ends: 2381 [2019-11-06 22:32:27,299 INFO L226 Difference]: Without dead ends: 1537 [2019-11-06 22:32:27,303 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:32:27,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2019-11-06 22:32:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1398. [2019-11-06 22:32:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-11-06 22:32:27,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1735 transitions. [2019-11-06 22:32:27,391 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1735 transitions. Word has length 121 [2019-11-06 22:32:27,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:32:27,392 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 1735 transitions. [2019-11-06 22:32:27,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:32:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1735 transitions. [2019-11-06 22:32:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-06 22:32:27,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:32:27,400 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:32:27,400 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:32:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:32:27,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1570219518, now seen corresponding path program 1 times [2019-11-06 22:32:27,401 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:32:27,402 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332322789] [2019-11-06 22:32:27,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:32:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:27,624 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:27,624 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332322789] [2019-11-06 22:32:27,624 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024957077] [2019-11-06 22:32:27,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:32:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:32:27,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:32:27,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:32:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:27,797 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:32:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:32:27,853 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:32:27,853 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2019-11-06 22:32:27,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301036772] [2019-11-06 22:32:27,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:32:27,855 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:32:27,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:32:27,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:32:27,857 INFO L87 Difference]: Start difference. First operand 1398 states and 1735 transitions. Second operand 3 states. [2019-11-06 22:32:28,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:32:28,471 INFO L93 Difference]: Finished difference Result 4021 states and 5068 transitions. [2019-11-06 22:32:28,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:32:28,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-11-06 22:32:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:32:28,473 INFO L225 Difference]: With dead ends: 4021 [2019-11-06 22:32:28,473 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:32:28,480 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:32:28,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:32:28,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:32:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:32:28,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:32:28,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2019-11-06 22:32:28,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:32:28,481 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:32:28,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:32:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:32:28,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:32:28,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:32:28,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:32:29,222 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2019-11-06 22:32:29,335 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:32:29,336 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) [2019-11-06 22:32:29,336 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:32:29,336 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-06 22:32:29,336 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-06 22:32:29,336 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,336 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-06 22:32:29,337 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-06 22:32:29,338 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-06 22:32:29,339 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-06 22:32:29,340 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,341 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-06 22:32:29,342 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,343 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-06 22:32:29,344 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 443) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-06 22:32:29,345 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-06 22:32:29,346 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-06 22:32:29,347 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-06 22:32:29,348 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-06 22:32:29,349 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,350 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-06 22:32:29,351 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-06 22:32:29,352 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-06 22:32:29,352 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-06 22:32:29,352 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,352 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,352 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-06 22:32:29,353 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-06 22:32:29,354 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-06 22:32:29,354 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-06 22:32:29,354 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-06 22:32:29,354 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-06 22:32:29,354 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-06 22:32:29,355 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse3 (= ~a8~0 |old(~a8~0)|))) (let ((.cse5 (and .cse4 .cse3)) (.cse2 (or (= 6 |old(~a16~0)|) (not (< |old(~a8~0)| 15)))) (.cse1 (= 1 |old(~a20~0)|)) (.cse0 (not (= ~a20~0 1)))) (and (or .cse0 (= 13 |old(~a8~0)|) .cse1) (or .cse2 (and .cse3 .cse4)) (or .cse5 .cse1) (or (and .cse4 .cse3 (<= ~a17~0 0)) (not (<= |old(~a17~0)| 0))) (or (= 4 |old(~a16~0)|) .cse5) (or .cse2 .cse1 .cse0)))) [2019-11-06 22:32:29,355 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-06 22:32:29,355 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,355 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,355 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-06 22:32:29,356 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-06 22:32:29,357 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,358 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-06 22:32:29,359 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-06 22:32:29,360 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,361 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-06 22:32:29,362 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-06 22:32:29,363 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-06 22:32:29,363 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-06 22:32:29,363 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:32:29,363 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a8~0 13)) (not (= ~a16~0 4))) [2019-11-06 22:32:29,363 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:32:29,363 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:32:29,363 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 4 |old(~a16~0)|) (= 13 |old(~a8~0)|) (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2019-11-06 22:32:29,364 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-11-06 22:32:29,364 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= ~a16~0 4)) (<= ~a17~0 0) (= 4 |old(~a16~0)|) (< ~a8~0 15) (= 13 |old(~a8~0)|) (not (= ~a20~0 1))) [2019-11-06 22:32:29,364 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-11-06 22:32:29,364 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-06 22:32:29,364 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= ~a16~0 4)) (<= ~a17~0 0) (= 4 |old(~a16~0)|) (< ~a8~0 15) (= 13 |old(~a8~0)|) (not (= ~a20~0 1))) [2019-11-06 22:32:29,364 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-11-06 22:32:29,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:29 BoogieIcfgContainer [2019-11-06 22:32:29,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:32:29,383 INFO L168 Benchmark]: Toolchain (without parser) took 10189.64 ms. Allocated memory was 147.3 MB in the beginning and 352.8 MB in the end (delta: 205.5 MB). Free memory was 103.3 MB in the beginning and 113.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 195.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:32:29,383 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:32:29,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.37 ms. Allocated memory was 147.3 MB in the beginning and 207.6 MB in the end (delta: 60.3 MB). Free memory was 103.1 MB in the beginning and 173.6 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:32:29,385 INFO L168 Benchmark]: Boogie Preprocessor took 113.82 ms. Allocated memory is still 207.6 MB. Free memory was 173.6 MB in the beginning and 168.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:32:29,388 INFO L168 Benchmark]: RCFGBuilder took 1279.92 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.2 MB in the beginning and 177.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:32:29,389 INFO L168 Benchmark]: TraceAbstraction took 8129.05 ms. Allocated memory was 237.0 MB in the beginning and 352.8 MB in the end (delta: 115.9 MB). Free memory was 175.7 MB in the beginning and 113.7 MB in the end (delta: 62.0 MB). Peak memory consumption was 177.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:32:29,400 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 662.37 ms. Allocated memory was 147.3 MB in the beginning and 207.6 MB in the end (delta: 60.3 MB). Free memory was 103.1 MB in the beginning and 173.6 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.82 ms. Allocated memory is still 207.6 MB. Free memory was 173.6 MB in the beginning and 168.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1279.92 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.2 MB in the beginning and 177.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8129.05 ms. Allocated memory was 237.0 MB in the beginning and 352.8 MB in the end (delta: 115.9 MB). Free memory was 175.7 MB in the beginning and 113.7 MB in the end (delta: 62.0 MB). Peak memory consumption was 177.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 443]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((6 == \old(a16) || !(a16 == 4)) || a17 <= 0) || 4 == \old(a16)) || a8 < 15) || 13 == \old(a8)) || !(a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Result: SAFE, OverallTime: 8.0s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, HoareTripleCheckerStatistics: 732 SDtfs, 1240 SDslu, 145 SDs, 0 SdLazy, 2753 SolverSat, 523 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 574 GetRequests, 541 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1398occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 709 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 53 PreInvPairs, 91 NumberOfFragments, 167 HoareAnnotationTreeSize, 53 FomulaSimplifications, 2476 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1304 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 969 NumberOfCodeBlocks, 969 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1223 ConstructedInterpolants, 0 QuantifiedInterpolants, 471995 SizeOfPredicates, 4 NumberOfNonLiveVariables, 732 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 246/256 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...