/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 03:51:15,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 03:51:15,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 03:51:15,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 03:51:15,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 03:51:15,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 03:51:15,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 03:51:15,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 03:51:15,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 03:51:15,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 03:51:15,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 03:51:15,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 03:51:15,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 03:51:15,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 03:51:15,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 03:51:15,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 03:51:15,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 03:51:15,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 03:51:15,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 03:51:15,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 03:51:15,783 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 [2020-07-20 03:51:15,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 03:51:15,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 03:51:15,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 03:51:15,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 03:51:15,800 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 03:51:15,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 03:51:15,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 03:51:15,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 03:51:15,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 03:51:15,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 03:51:15,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 03:51:15,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 03:51:15,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 03:51:15,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 03:51:15,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 03:51:15,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 03:51:15,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 03:51:15,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 03:51:15,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 03:51:15,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 03:51:15,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 03:51:15,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:51:15,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 03:51:15,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 03:51:15,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 03:51:15,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 03:51:15,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 03:51:15,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 03:51:15,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 03:51:15,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 03:51:16,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 03:51:16,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 03:51:16,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 03:51:16,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 03:51:16,133 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 03:51:16,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-07-20 03:51:16,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec59cb88/daa9d6812a9647a69e5ce49ee87c8923/FLAGba578a1ab [2020-07-20 03:51:16,822 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 03:51:16,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-07-20 03:51:16,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec59cb88/daa9d6812a9647a69e5ce49ee87c8923/FLAGba578a1ab [2020-07-20 03:51:17,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec59cb88/daa9d6812a9647a69e5ce49ee87c8923 [2020-07-20 03:51:17,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 03:51:17,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 03:51:17,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 03:51:17,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 03:51:17,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 03:51:17,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:17,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f695dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17, skipping insertion in model container [2020-07-20 03:51:17,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:17,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 03:51:17,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 03:51:17,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:51:17,640 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 03:51:17,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:51:17,923 INFO L208 MainTranslator]: Completed translation [2020-07-20 03:51:17,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17 WrapperNode [2020-07-20 03:51:17,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 03:51:17,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 03:51:17,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 03:51:17,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 03:51:17,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:17,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:17,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:17,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:18,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:18,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:18,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (1/1) ... [2020-07-20 03:51:18,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 03:51:18,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 03:51:18,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 03:51:18,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 03:51:18,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (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 [2020-07-20 03:51:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 03:51:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 03:51:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 03:51:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 03:51:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 03:51:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 03:51:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 03:51:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 03:51:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 03:51:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 03:51:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 03:51:19,736 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 03:51:19,737 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 03:51:19,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:19 BoogieIcfgContainer [2020-07-20 03:51:19,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 03:51:19,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 03:51:19,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 03:51:19,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 03:51:19,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:51:17" (1/3) ... [2020-07-20 03:51:19,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3576feff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:19, skipping insertion in model container [2020-07-20 03:51:19,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:17" (2/3) ... [2020-07-20 03:51:19,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3576feff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:19, skipping insertion in model container [2020-07-20 03:51:19,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:19" (3/3) ... [2020-07-20 03:51:19,765 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2020-07-20 03:51:19,774 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 03:51:19,782 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 03:51:19,794 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 03:51:19,820 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 03:51:19,820 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 03:51:19,820 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 03:51:19,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 03:51:19,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 03:51:19,821 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 03:51:19,821 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 03:51:19,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 03:51:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-20 03:51:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-20 03:51:19,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:19,855 INFO L422 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] [2020-07-20 03:51:19,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:19,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:19,862 INFO L82 PathProgramCache]: Analyzing trace with hash 2061919546, now seen corresponding path program 1 times [2020-07-20 03:51:19,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:19,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463915980] [2020-07-20 03:51:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:20,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463915980] [2020-07-20 03:51:20,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:20,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:51:20,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540041912] [2020-07-20 03:51:20,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 03:51:20,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:20,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 03:51:20,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:51:20,353 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-20 03:51:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:23,255 INFO L93 Difference]: Finished difference Result 902 states and 1625 transitions. [2020-07-20 03:51:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 03:51:23,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-07-20 03:51:23,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:23,278 INFO L225 Difference]: With dead ends: 902 [2020-07-20 03:51:23,279 INFO L226 Difference]: Without dead ends: 564 [2020-07-20 03:51:23,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 03:51:23,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-20 03:51:23,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376. [2020-07-20 03:51:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-07-20 03:51:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-07-20 03:51:23,372 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 49 [2020-07-20 03:51:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:23,373 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-07-20 03:51:23,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 03:51:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-07-20 03:51:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 03:51:23,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:23,380 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:23,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 03:51:23,381 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:23,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:23,381 INFO L82 PathProgramCache]: Analyzing trace with hash 783093133, now seen corresponding path program 1 times [2020-07-20 03:51:23,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:23,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635089671] [2020-07-20 03:51:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:23,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635089671] [2020-07-20 03:51:23,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:23,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 03:51:23,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144808221] [2020-07-20 03:51:23,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 03:51:23,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:23,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 03:51:23,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:51:23,737 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states. [2020-07-20 03:51:26,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:26,013 INFO L93 Difference]: Finished difference Result 1134 states and 1534 transitions. [2020-07-20 03:51:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 03:51:26,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-07-20 03:51:26,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:26,024 INFO L225 Difference]: With dead ends: 1134 [2020-07-20 03:51:26,024 INFO L226 Difference]: Without dead ends: 764 [2020-07-20 03:51:26,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:51:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-07-20 03:51:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 564. [2020-07-20 03:51:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-07-20 03:51:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 750 transitions. [2020-07-20 03:51:26,071 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 750 transitions. Word has length 132 [2020-07-20 03:51:26,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:26,072 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 750 transitions. [2020-07-20 03:51:26,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 03:51:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 750 transitions. [2020-07-20 03:51:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-20 03:51:26,076 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:26,077 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:26,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 03:51:26,077 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:26,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:26,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1340716769, now seen corresponding path program 1 times [2020-07-20 03:51:26,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:26,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730476973] [2020-07-20 03:51:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:26,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730476973] [2020-07-20 03:51:26,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188879833] [2020-07-20 03:51:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5609ccdb 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 [2020-07-20 03:51:26,512 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5609ccdb issued 4 check-sat command(s) [2020-07-20 03:51:26,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:26,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:26,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:26,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:26,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2020-07-20 03:51:26,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039127124] [2020-07-20 03:51:26,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:26,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:26,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:26,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:51:26,602 INFO L87 Difference]: Start difference. First operand 564 states and 750 transitions. Second operand 3 states. [2020-07-20 03:51:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:27,436 INFO L93 Difference]: Finished difference Result 1118 states and 1504 transitions. [2020-07-20 03:51:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:27,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-07-20 03:51:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:27,443 INFO L225 Difference]: With dead ends: 1118 [2020-07-20 03:51:27,444 INFO L226 Difference]: Without dead ends: 1116 [2020-07-20 03:51:27,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:51:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-07-20 03:51:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 750. [2020-07-20 03:51:27,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-07-20 03:51:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1059 transitions. [2020-07-20 03:51:27,480 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1059 transitions. Word has length 158 [2020-07-20 03:51:27,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:27,481 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1059 transitions. [2020-07-20 03:51:27,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:27,481 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1059 transitions. [2020-07-20 03:51:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-20 03:51:27,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:27,487 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:27,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-20 03:51:27,700 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:27,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1341152017, now seen corresponding path program 1 times [2020-07-20 03:51:27,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:27,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508895486] [2020-07-20 03:51:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 03:51:27,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508895486] [2020-07-20 03:51:27,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640516695] [2020-07-20 03:51:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f313d89 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:28,115 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f313d89 issued 4 check-sat command(s) [2020-07-20 03:51:28,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:28,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 03:51:28,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-20 03:51:28,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:28,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-20 03:51:28,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791878091] [2020-07-20 03:51:28,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 03:51:28,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:28,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 03:51:28,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:51:28,191 INFO L87 Difference]: Start difference. First operand 750 states and 1059 transitions. Second operand 5 states. [2020-07-20 03:51:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:29,529 INFO L93 Difference]: Finished difference Result 1890 states and 2740 transitions. [2020-07-20 03:51:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 03:51:29,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-07-20 03:51:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:29,537 INFO L225 Difference]: With dead ends: 1890 [2020-07-20 03:51:29,537 INFO L226 Difference]: Without dead ends: 1146 [2020-07-20 03:51:29,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:51:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2020-07-20 03:51:29,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1124. [2020-07-20 03:51:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-07-20 03:51:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1477 transitions. [2020-07-20 03:51:29,579 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1477 transitions. Word has length 202 [2020-07-20 03:51:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:29,580 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1477 transitions. [2020-07-20 03:51:29,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 03:51:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1477 transitions. [2020-07-20 03:51:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-20 03:51:29,583 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:29,584 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:29,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:29,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:29,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:29,800 INFO L82 PathProgramCache]: Analyzing trace with hash 597460750, now seen corresponding path program 1 times [2020-07-20 03:51:29,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:29,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744808806] [2020-07-20 03:51:29,802 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 84 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 03:51:30,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744808806] [2020-07-20 03:51:30,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720797657] [2020-07-20 03:51:30,097 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4ab3c04c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:30,206 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4ab3c04c issued 4 check-sat command(s) [2020-07-20 03:51:30,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:30,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:30,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-20 03:51:30,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:30,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 03:51:30,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518219299] [2020-07-20 03:51:30,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:30,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:30,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:30,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:30,265 INFO L87 Difference]: Start difference. First operand 1124 states and 1477 transitions. Second operand 3 states. [2020-07-20 03:51:31,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:31,283 INFO L93 Difference]: Finished difference Result 3160 states and 4242 transitions. [2020-07-20 03:51:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:31,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-20 03:51:31,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:31,310 INFO L225 Difference]: With dead ends: 3160 [2020-07-20 03:51:31,311 INFO L226 Difference]: Without dead ends: 2042 [2020-07-20 03:51:31,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:31,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2020-07-20 03:51:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2042. [2020-07-20 03:51:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2042 states. [2020-07-20 03:51:31,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 2575 transitions. [2020-07-20 03:51:31,423 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 2575 transitions. Word has length 205 [2020-07-20 03:51:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:31,429 INFO L479 AbstractCegarLoop]: Abstraction has 2042 states and 2575 transitions. [2020-07-20 03:51:31,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 2575 transitions. [2020-07-20 03:51:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-20 03:51:31,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:31,441 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 03:51:31,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:31,657 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:31,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:31,658 INFO L82 PathProgramCache]: Analyzing trace with hash 440739686, now seen corresponding path program 1 times [2020-07-20 03:51:31,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:31,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686286793] [2020-07-20 03:51:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 84 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 03:51:32,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686286793] [2020-07-20 03:51:32,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366736371] [2020-07-20 03:51:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c38b3fc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:32,299 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c38b3fc issued 4 check-sat command(s) [2020-07-20 03:51:32,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:32,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:32,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-20 03:51:32,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:32,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 03:51:32,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995305661] [2020-07-20 03:51:32,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:32,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:32,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:32,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:32,410 INFO L87 Difference]: Start difference. First operand 2042 states and 2575 transitions. Second operand 3 states. [2020-07-20 03:51:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:33,709 INFO L93 Difference]: Finished difference Result 4996 states and 6443 transitions. [2020-07-20 03:51:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:33,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-07-20 03:51:33,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:33,728 INFO L225 Difference]: With dead ends: 4996 [2020-07-20 03:51:33,728 INFO L226 Difference]: Without dead ends: 2960 [2020-07-20 03:51:33,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:33,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2020-07-20 03:51:33,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2778. [2020-07-20 03:51:33,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2778 states. [2020-07-20 03:51:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3454 transitions. [2020-07-20 03:51:33,824 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3454 transitions. Word has length 217 [2020-07-20 03:51:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:33,824 INFO L479 AbstractCegarLoop]: Abstraction has 2778 states and 3454 transitions. [2020-07-20 03:51:33,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3454 transitions. [2020-07-20 03:51:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-07-20 03:51:33,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:33,833 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 03:51:34,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:34,047 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:34,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:34,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1266431367, now seen corresponding path program 1 times [2020-07-20 03:51:34,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:34,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614306534] [2020-07-20 03:51:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-07-20 03:51:34,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614306534] [2020-07-20 03:51:34,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250681412] [2020-07-20 03:51:34,528 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@13ecc6ed No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:34,824 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@13ecc6ed issued 4 check-sat command(s) [2020-07-20 03:51:34,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:34,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:34,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-20 03:51:34,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:34,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 03:51:34,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327862378] [2020-07-20 03:51:34,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:34,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:34,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:34,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:34,990 INFO L87 Difference]: Start difference. First operand 2778 states and 3454 transitions. Second operand 3 states. [2020-07-20 03:51:35,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:35,898 INFO L93 Difference]: Finished difference Result 5738 states and 7385 transitions. [2020-07-20 03:51:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:35,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2020-07-20 03:51:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:35,920 INFO L225 Difference]: With dead ends: 5738 [2020-07-20 03:51:35,920 INFO L226 Difference]: Without dead ends: 3330 [2020-07-20 03:51:35,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2020-07-20 03:51:35,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3148. [2020-07-20 03:51:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-07-20 03:51:36,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4028 transitions. [2020-07-20 03:51:36,007 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4028 transitions. Word has length 314 [2020-07-20 03:51:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:36,008 INFO L479 AbstractCegarLoop]: Abstraction has 3148 states and 4028 transitions. [2020-07-20 03:51:36,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:36,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4028 transitions. [2020-07-20 03:51:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-20 03:51:36,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:36,017 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:36,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-20 03:51:36,233 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:36,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1020978518, now seen corresponding path program 1 times [2020-07-20 03:51:36,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:36,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240915225] [2020-07-20 03:51:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-20 03:51:36,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240915225] [2020-07-20 03:51:36,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955831503] [2020-07-20 03:51:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1595089 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:36,914 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1595089 issued 4 check-sat command(s) [2020-07-20 03:51:36,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:36,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:36,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-20 03:51:37,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:37,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 03:51:37,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372243052] [2020-07-20 03:51:37,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:37,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:37,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:37,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:37,072 INFO L87 Difference]: Start difference. First operand 3148 states and 4028 transitions. Second operand 3 states. [2020-07-20 03:51:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:38,043 INFO L93 Difference]: Finished difference Result 6480 states and 8535 transitions. [2020-07-20 03:51:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:38,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2020-07-20 03:51:38,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:38,067 INFO L225 Difference]: With dead ends: 6480 [2020-07-20 03:51:38,067 INFO L226 Difference]: Without dead ends: 3702 [2020-07-20 03:51:38,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-07-20 03:51:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3520. [2020-07-20 03:51:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3520 states. [2020-07-20 03:51:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4631 transitions. [2020-07-20 03:51:38,163 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4631 transitions. Word has length 339 [2020-07-20 03:51:38,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:38,164 INFO L479 AbstractCegarLoop]: Abstraction has 3520 states and 4631 transitions. [2020-07-20 03:51:38,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4631 transitions. [2020-07-20 03:51:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-07-20 03:51:38,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:38,175 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 03:51:38,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:38,387 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:38,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:38,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2084892774, now seen corresponding path program 1 times [2020-07-20 03:51:38,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:38,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743892515] [2020-07-20 03:51:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-07-20 03:51:38,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743892515] [2020-07-20 03:51:38,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048922210] [2020-07-20 03:51:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@774a56c1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:39,050 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@774a56c1 issued 4 check-sat command(s) [2020-07-20 03:51:39,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:39,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:39,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-07-20 03:51:39,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:39,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 03:51:39,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295804652] [2020-07-20 03:51:39,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:39,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:39,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:39,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:39,227 INFO L87 Difference]: Start difference. First operand 3520 states and 4631 transitions. Second operand 3 states. [2020-07-20 03:51:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:40,143 INFO L93 Difference]: Finished difference Result 4624 states and 6077 transitions. [2020-07-20 03:51:40,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:40,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-07-20 03:51:40,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:40,164 INFO L225 Difference]: With dead ends: 4624 [2020-07-20 03:51:40,165 INFO L226 Difference]: Without dead ends: 4622 [2020-07-20 03:51:40,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2020-07-20 03:51:40,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 3528. [2020-07-20 03:51:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3528 states. [2020-07-20 03:51:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4647 transitions. [2020-07-20 03:51:40,277 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4647 transitions. Word has length 353 [2020-07-20 03:51:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:40,278 INFO L479 AbstractCegarLoop]: Abstraction has 3528 states and 4647 transitions. [2020-07-20 03:51:40,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4647 transitions. [2020-07-20 03:51:40,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-07-20 03:51:40,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:40,293 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 03:51:40,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:40,506 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:40,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1401469962, now seen corresponding path program 1 times [2020-07-20 03:51:40,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:40,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269937632] [2020-07-20 03:51:40,507 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38d346a7 [2020-07-20 03:51:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-07-20 03:51:40,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269937632] [2020-07-20 03:51:40,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950564308] [2020-07-20 03:51:40,892 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a6c259 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:41,065 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a6c259 issued 4 check-sat command(s) [2020-07-20 03:51:41,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:41,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:41,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-07-20 03:51:41,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:41,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-20 03:51:41,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165110534] [2020-07-20 03:51:41,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:41,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:41,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:41,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:41,213 INFO L87 Difference]: Start difference. First operand 3528 states and 4647 transitions. Second operand 3 states. [2020-07-20 03:51:42,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:42,053 INFO L93 Difference]: Finished difference Result 7600 states and 10059 transitions. [2020-07-20 03:51:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:42,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 387 [2020-07-20 03:51:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:42,056 INFO L225 Difference]: With dead ends: 7600 [2020-07-20 03:51:42,056 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 03:51:42,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 03:51:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 03:51:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 03:51:42,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 03:51:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 03:51:42,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 387 [2020-07-20 03:51:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:42,075 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 03:51:42,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 03:51:42,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 03:51:42,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-20 03:51:42,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 03:51:43,188 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 30 [2020-07-20 03:51:43,347 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:51:43,348 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-20 03:51:43,348 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:51:43,348 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-20 03:51:43,348 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-20 03:51:43,348 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,348 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,349 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-20 03:51:43,350 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-20 03:51:43,351 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-20 03:51:43,352 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,353 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-20 03:51:43,354 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 03:51:43,355 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,356 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-20 03:51:43,357 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,358 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,358 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,358 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-20 03:51:43,358 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-20 03:51:43,358 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 03:51:43,358 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 03:51:43,359 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 03:51:43,359 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-20 03:51:43,359 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse0 (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)))) (and (or .cse0 (not (<= |old(~a15~0)| 5))) (or .cse0 (not (<= 7 |old(~a15~0)|))) (or (not (<= |old(~a21~0)| 6)) .cse0) (or .cse0 (not (<= 8 |old(~a21~0)|))))) [2020-07-20 03:51:43,359 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-20 03:51:43,359 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-20 03:51:43,359 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-20 03:51:43,360 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-20 03:51:43,361 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,362 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-20 03:51:43,363 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 03:51:43,364 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-20 03:51:43,365 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-20 03:51:43,366 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-20 03:51:43,367 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,368 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-20 03:51:43,369 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-20 03:51:43,370 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-20 03:51:43,371 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 03:51:43,372 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 03:51:43,373 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-20 03:51:43,373 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:51:43,373 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= ~a15~0 8) (<= 8 ~a15~0)) [2020-07-20 03:51:43,373 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 03:51:43,373 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:51:43,373 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (<= ~a15~0 8) (= ~a21~0 |old(~a21~0)|) (<= 8 ~a15~0))) [2020-07-20 03:51:43,373 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-20 03:51:43,374 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (or (<= ~a21~0 6) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (<= 8 ~a21~0) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-20 03:51:43,374 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 03:51:43,374 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-20 03:51:43,374 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (or (<= ~a21~0 6) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (<= 8 ~a21~0) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-20 03:51:43,374 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-20 03:51:43,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:51:43 BoogieIcfgContainer [2020-07-20 03:51:43,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 03:51:43,395 INFO L168 Benchmark]: Toolchain (without parser) took 26306.29 ms. Allocated memory was 139.5 MB in the beginning and 676.9 MB in the end (delta: 537.4 MB). Free memory was 102.2 MB in the beginning and 185.7 MB in the end (delta: -83.5 MB). Peak memory consumption was 453.9 MB. Max. memory is 7.1 GB. [2020-07-20 03:51:43,396 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 03:51:43,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.82 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.0 MB in the beginning and 169.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. [2020-07-20 03:51:43,397 INFO L168 Benchmark]: Boogie Preprocessor took 161.96 ms. Allocated memory is still 206.6 MB. Free memory was 169.4 MB in the beginning and 163.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2020-07-20 03:51:43,398 INFO L168 Benchmark]: RCFGBuilder took 1663.17 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 158.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-07-20 03:51:43,399 INFO L168 Benchmark]: TraceAbstraction took 23641.74 ms. Allocated memory was 240.1 MB in the beginning and 676.9 MB in the end (delta: 436.7 MB). Free memory was 156.7 MB in the beginning and 185.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 407.7 MB. Max. memory is 7.1 GB. [2020-07-20 03:51:43,402 INFO L336 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 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.82 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.0 MB in the beginning and 169.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.96 ms. Allocated memory is still 206.6 MB. Free memory was 169.4 MB in the beginning and 163.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1663.17 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 158.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23641.74 ms. Allocated memory was 240.1 MB in the beginning and 676.9 MB in the end (delta: 436.7 MB). Free memory was 156.7 MB in the beginning and 185.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 407.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: 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: 880]: Loop Invariant Derived loop invariant: (((((a21 <= 6 || 7 <= a15) || a15 <= 5) || !(\old(a12) + 49 <= 0)) || 8 <= a21) || !(\old(a15) <= 8)) || !(8 <= \old(a15)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.4s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1603 SDtfs, 3194 SDslu, 211 SDs, 0 SdLazy, 7121 SolverSat, 1359 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2280 GetRequests, 2205 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3528occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 2416 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 99 PreInvPairs, 147 NumberOfFragments, 202 HoareAnnotationTreeSize, 99 FomulaSimplifications, 14900 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3520 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 4531 NumberOfCodeBlocks, 4531 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 4513 ConstructedInterpolants, 0 QuantifiedInterpolants, 2622829 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3740 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 3309/4056 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...