/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:11:25,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 21:11:25,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 21:11:25,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-18 21:11:25,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:11:25,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:11:25,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:11:25,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:11:25,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:11:25,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:11:25,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:11:25,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:11:25,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:11:25,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:11:25,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:11:25,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:11:25,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 21:11:25,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:11:25,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:11:25,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:11:25,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 21:11:25,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:11:25,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:11:25,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:11:25,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:11:25,717 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:11:25,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:11:25,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:11:25,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:11:25,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:11:25,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:11:25,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:11:25,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:11:25,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:11:25,718 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:11:25,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:11:25,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:11:25,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:11:25,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:11:25,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:11:25,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:11:25,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:11:25,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:11:25,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:11:25,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:11:25,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:11:25,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:11:25,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:11:25,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:11:25,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:11:25,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; [2020-08-18 21:11:26,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:11:26,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:11:26,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:11:26,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:11:26,083 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:11:26,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-18 21:11:26,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1962ed0a/80e313b811f8495889fd4a4eda873ea3/FLAG3ec5d0e3b [2020-08-18 21:11:26,757 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:11:26,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-18 21:11:26,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1962ed0a/80e313b811f8495889fd4a4eda873ea3/FLAG3ec5d0e3b [2020-08-18 21:11:27,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1962ed0a/80e313b811f8495889fd4a4eda873ea3 [2020-08-18 21:11:27,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:11:27,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:11:27,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:11:27,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:11:27,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:11:27,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:27,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5035f6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27, skipping insertion in model container [2020-08-18 21:11:27,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:27,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:11:27,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:11:27,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:11:27,750 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:11:27,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:11:27,897 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:11:27,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27 WrapperNode [2020-08-18 21:11:27,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:11:27,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:11:27,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:11:27,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:11:27,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:27,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:27,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:27,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:28,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:28,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:28,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... [2020-08-18 21:11:28,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:11:28,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:11:28,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:11:28,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:11:28,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 21:11:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:11:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:11:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 21:11:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:11:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 21:11:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:11:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:11:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 21:11:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:11:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:11:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:11:29,687 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:11:29,687 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 21:11:29,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:11:29 BoogieIcfgContainer [2020-08-18 21:11:29,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:11:29,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:11:29,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:11:29,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:11:29,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:11:27" (1/3) ... [2020-08-18 21:11:29,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d65217b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:11:29, skipping insertion in model container [2020-08-18 21:11:29,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:11:27" (2/3) ... [2020-08-18 21:11:29,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d65217b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:11:29, skipping insertion in model container [2020-08-18 21:11:29,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:11:29" (3/3) ... [2020-08-18 21:11:29,705 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-08-18 21:11:29,720 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:11:29,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:11:29,747 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:11:29,779 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:11:29,779 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:11:29,780 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:11:29,780 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:11:29,780 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:11:29,780 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:11:29,781 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:11:29,781 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:11:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-08-18 21:11:29,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-18 21:11:29,818 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:29,820 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, 1, 1, 1, 1, 1] [2020-08-18 21:11:29,820 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:29,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:29,827 INFO L82 PathProgramCache]: Analyzing trace with hash 406410443, now seen corresponding path program 1 times [2020-08-18 21:11:29,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:29,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371365637] [2020-08-18 21:11:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:30,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371365637] [2020-08-18 21:11:30,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:11:30,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:11:30,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169060776] [2020-08-18 21:11:30,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:11:30,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:30,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:11:30,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:11:30,369 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-08-18 21:11:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:33,066 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-08-18 21:11:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 21:11:33,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-08-18 21:11:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:33,101 INFO L225 Difference]: With dead ends: 886 [2020-08-18 21:11:33,101 INFO L226 Difference]: Without dead ends: 564 [2020-08-18 21:11:33,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:11:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-08-18 21:11:33,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-08-18 21:11:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-08-18 21:11:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 861 transitions. [2020-08-18 21:11:33,212 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 861 transitions. Word has length 54 [2020-08-18 21:11:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:33,213 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 861 transitions. [2020-08-18 21:11:33,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:11:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 861 transitions. [2020-08-18 21:11:33,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-18 21:11:33,221 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:33,222 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, 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] [2020-08-18 21:11:33,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:11:33,222 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:33,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:33,223 INFO L82 PathProgramCache]: Analyzing trace with hash -724645666, now seen corresponding path program 1 times [2020-08-18 21:11:33,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:33,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324689199] [2020-08-18 21:11:33,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:33,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:33,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:33,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324689199] [2020-08-18 21:11:33,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:11:33,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:11:33,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336532644] [2020-08-18 21:11:33,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:11:33,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:33,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:11:33,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:11:33,596 INFO L87 Difference]: Start difference. First operand 560 states and 861 transitions. Second operand 7 states. [2020-08-18 21:11:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:35,624 INFO L93 Difference]: Finished difference Result 1518 states and 2374 transitions. [2020-08-18 21:11:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 21:11:35,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-08-18 21:11:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:35,632 INFO L225 Difference]: With dead ends: 1518 [2020-08-18 21:11:35,632 INFO L226 Difference]: Without dead ends: 964 [2020-08-18 21:11:35,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 21:11:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-08-18 21:11:35,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 944. [2020-08-18 21:11:35,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-08-18 21:11:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2020-08-18 21:11:35,701 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 148 [2020-08-18 21:11:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:35,702 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2020-08-18 21:11:35,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:11:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2020-08-18 21:11:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-18 21:11:35,708 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:35,709 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:35,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:11:35,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:35,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:35,710 INFO L82 PathProgramCache]: Analyzing trace with hash 2026240930, now seen corresponding path program 1 times [2020-08-18 21:11:35,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:35,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699284809] [2020-08-18 21:11:35,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:35,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:36,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699284809] [2020-08-18 21:11:36,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:11:36,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 21:11:36,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364448714] [2020-08-18 21:11:36,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:11:36,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:36,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:11:36,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:11:36,014 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand 8 states. [2020-08-18 21:11:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:38,035 INFO L93 Difference]: Finished difference Result 2490 states and 3798 transitions. [2020-08-18 21:11:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 21:11:38,037 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-08-18 21:11:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:38,049 INFO L225 Difference]: With dead ends: 2490 [2020-08-18 21:11:38,050 INFO L226 Difference]: Without dead ends: 1552 [2020-08-18 21:11:38,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-18 21:11:38,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-08-18 21:11:38,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1518. [2020-08-18 21:11:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-08-18 21:11:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2119 transitions. [2020-08-18 21:11:38,125 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2119 transitions. Word has length 194 [2020-08-18 21:11:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:38,126 INFO L479 AbstractCegarLoop]: Abstraction has 1518 states and 2119 transitions. [2020-08-18 21:11:38,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:11:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2119 transitions. [2020-08-18 21:11:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-08-18 21:11:38,132 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:38,133 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:38,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:11:38,133 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:38,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:38,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1200176176, now seen corresponding path program 1 times [2020-08-18 21:11:38,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:38,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844412365] [2020-08-18 21:11:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:38,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:38,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:38,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 21:11:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 94 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-18 21:11:38,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844412365] [2020-08-18 21:11:38,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:38,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 21:11:38,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236816542] [2020-08-18 21:11:38,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:11:38,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:38,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:11:38,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:11:38,492 INFO L87 Difference]: Start difference. First operand 1518 states and 2119 transitions. Second operand 8 states. [2020-08-18 21:11:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:40,457 INFO L93 Difference]: Finished difference Result 3412 states and 4693 transitions. [2020-08-18 21:11:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 21:11:40,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-08-18 21:11:40,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:40,469 INFO L225 Difference]: With dead ends: 3412 [2020-08-18 21:11:40,469 INFO L226 Difference]: Without dead ends: 1900 [2020-08-18 21:11:40,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:11:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-08-18 21:11:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1890. [2020-08-18 21:11:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2020-08-18 21:11:40,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2517 transitions. [2020-08-18 21:11:40,546 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2517 transitions. Word has length 213 [2020-08-18 21:11:40,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:40,547 INFO L479 AbstractCegarLoop]: Abstraction has 1890 states and 2517 transitions. [2020-08-18 21:11:40,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:11:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2517 transitions. [2020-08-18 21:11:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-08-18 21:11:40,554 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:40,554 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:40,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:11:40,554 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:40,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:40,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1683146711, now seen corresponding path program 1 times [2020-08-18 21:11:40,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:40,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612106813] [2020-08-18 21:11:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:40,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:40,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 21:11:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:40,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-18 21:11:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 175 proven. 194 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-18 21:11:41,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612106813] [2020-08-18 21:11:41,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:41,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 21:11:41,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345155215] [2020-08-18 21:11:41,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:11:41,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:41,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:11:41,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:11:41,213 INFO L87 Difference]: Start difference. First operand 1890 states and 2517 transitions. Second operand 9 states. [2020-08-18 21:11:43,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:43,950 INFO L93 Difference]: Finished difference Result 3677 states and 4968 transitions. [2020-08-18 21:11:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 21:11:43,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 297 [2020-08-18 21:11:43,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:43,961 INFO L225 Difference]: With dead ends: 3677 [2020-08-18 21:11:43,961 INFO L226 Difference]: Without dead ends: 1930 [2020-08-18 21:11:43,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-18 21:11:43,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2020-08-18 21:11:44,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1882. [2020-08-18 21:11:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-08-18 21:11:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2280 transitions. [2020-08-18 21:11:44,022 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2280 transitions. Word has length 297 [2020-08-18 21:11:44,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:44,022 INFO L479 AbstractCegarLoop]: Abstraction has 1882 states and 2280 transitions. [2020-08-18 21:11:44,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:11:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2280 transitions. [2020-08-18 21:11:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-08-18 21:11:44,033 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:44,035 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-08-18 21:11:44,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:11:44,035 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:44,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:44,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1242283415, now seen corresponding path program 1 times [2020-08-18 21:11:44,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:44,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617643428] [2020-08-18 21:11:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:44,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:44,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:44,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:11:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:44,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:11:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:44,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-18 21:11:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 414 proven. 11 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-08-18 21:11:44,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617643428] [2020-08-18 21:11:44,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:44,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 21:11:44,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934275002] [2020-08-18 21:11:44,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:11:44,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:44,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:11:44,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:11:44,596 INFO L87 Difference]: Start difference. First operand 1882 states and 2280 transitions. Second operand 9 states. [2020-08-18 21:11:49,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:49,074 INFO L93 Difference]: Finished difference Result 5238 states and 6410 transitions. [2020-08-18 21:11:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-18 21:11:49,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 432 [2020-08-18 21:11:49,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:49,100 INFO L225 Difference]: With dead ends: 5238 [2020-08-18 21:11:49,101 INFO L226 Difference]: Without dead ends: 3356 [2020-08-18 21:11:49,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-08-18 21:11:49,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2020-08-18 21:11:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 2438. [2020-08-18 21:11:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-08-18 21:11:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 2779 transitions. [2020-08-18 21:11:49,178 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 2779 transitions. Word has length 432 [2020-08-18 21:11:49,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:49,179 INFO L479 AbstractCegarLoop]: Abstraction has 2438 states and 2779 transitions. [2020-08-18 21:11:49,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:11:49,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 2779 transitions. [2020-08-18 21:11:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-08-18 21:11:49,193 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:49,194 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:49,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 21:11:49,194 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1681885400, now seen corresponding path program 1 times [2020-08-18 21:11:49,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:49,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949382549] [2020-08-18 21:11:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:49,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:11:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:49,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:11:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:49,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-18 21:11:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:49,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-18 21:11:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 638 proven. 209 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-08-18 21:11:50,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949382549] [2020-08-18 21:11:50,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:50,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 21:11:50,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403682215] [2020-08-18 21:11:50,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 21:11:50,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:50,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 21:11:50,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-18 21:11:50,139 INFO L87 Difference]: Start difference. First operand 2438 states and 2779 transitions. Second operand 10 states. [2020-08-18 21:11:53,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:53,176 INFO L93 Difference]: Finished difference Result 5701 states and 6650 transitions. [2020-08-18 21:11:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-18 21:11:53,177 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 552 [2020-08-18 21:11:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:53,190 INFO L225 Difference]: With dead ends: 5701 [2020-08-18 21:11:53,190 INFO L226 Difference]: Without dead ends: 3400 [2020-08-18 21:11:53,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-08-18 21:11:53,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-08-18 21:11:53,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3174. [2020-08-18 21:11:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2020-08-18 21:11:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3494 transitions. [2020-08-18 21:11:53,266 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3494 transitions. Word has length 552 [2020-08-18 21:11:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:53,267 INFO L479 AbstractCegarLoop]: Abstraction has 3174 states and 3494 transitions. [2020-08-18 21:11:53,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 21:11:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3494 transitions. [2020-08-18 21:11:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-08-18 21:11:53,283 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:53,284 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-08-18 21:11:53,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 21:11:53,284 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:53,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:53,285 INFO L82 PathProgramCache]: Analyzing trace with hash 60264982, now seen corresponding path program 1 times [2020-08-18 21:11:53,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:53,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104567716] [2020-08-18 21:11:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:53,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:53,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:11:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:53,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:11:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-08-18 21:11:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 415 proven. 136 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-08-18 21:11:54,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104567716] [2020-08-18 21:11:54,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:54,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 21:11:54,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314219045] [2020-08-18 21:11:54,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 21:11:54,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:54,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 21:11:54,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 21:11:54,438 INFO L87 Difference]: Start difference. First operand 3174 states and 3494 transitions. Second operand 10 states. [2020-08-18 21:11:54,985 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-08-18 21:11:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:57,526 INFO L93 Difference]: Finished difference Result 5994 states and 6641 transitions. [2020-08-18 21:11:57,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 21:11:57,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 585 [2020-08-18 21:11:57,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:57,540 INFO L225 Difference]: With dead ends: 5994 [2020-08-18 21:11:57,541 INFO L226 Difference]: Without dead ends: 3192 [2020-08-18 21:11:57,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-08-18 21:11:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-08-18 21:11:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3178. [2020-08-18 21:11:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-18 21:11:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3485 transitions. [2020-08-18 21:11:57,630 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3485 transitions. Word has length 585 [2020-08-18 21:11:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:57,631 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3485 transitions. [2020-08-18 21:11:57,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 21:11:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3485 transitions. [2020-08-18 21:11:57,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-08-18 21:11:57,640 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:57,641 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-08-18 21:11:57,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 21:11:57,641 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:57,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:57,642 INFO L82 PathProgramCache]: Analyzing trace with hash 762745801, now seen corresponding path program 2 times [2020-08-18 21:11:57,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:57,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208807750] [2020-08-18 21:11:57,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:57,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:11:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:57,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:11:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:57,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-18 21:11:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:58,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-08-18 21:11:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 579 proven. 140 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2020-08-18 21:11:58,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208807750] [2020-08-18 21:11:58,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:58,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 21:11:58,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876458093] [2020-08-18 21:11:58,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:11:58,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:58,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:11:58,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:11:58,786 INFO L87 Difference]: Start difference. First operand 3178 states and 3485 transitions. Second operand 9 states. [2020-08-18 21:12:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:12:01,233 INFO L93 Difference]: Finished difference Result 6354 states and 6980 transitions. [2020-08-18 21:12:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 21:12:01,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 695 [2020-08-18 21:12:01,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:12:01,246 INFO L225 Difference]: With dead ends: 6354 [2020-08-18 21:12:01,246 INFO L226 Difference]: Without dead ends: 3364 [2020-08-18 21:12:01,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-08-18 21:12:01,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2020-08-18 21:12:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3178. [2020-08-18 21:12:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-18 21:12:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3483 transitions. [2020-08-18 21:12:01,313 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3483 transitions. Word has length 695 [2020-08-18 21:12:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:12:01,314 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3483 transitions. [2020-08-18 21:12:01,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:12:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3483 transitions. [2020-08-18 21:12:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-08-18 21:12:01,322 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:12:01,322 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 21:12:01,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 21:12:01,323 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:12:01,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:12:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1185073778, now seen corresponding path program 1 times [2020-08-18 21:12:01,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:12:01,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107786776] [2020-08-18 21:12:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:12:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:01,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:12:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:01,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:12:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:01,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:12:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:01,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:12:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 21:12:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:02,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2020-08-18 21:12:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 586 proven. 140 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2020-08-18 21:12:02,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107786776] [2020-08-18 21:12:02,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:12:02,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 21:12:02,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272094247] [2020-08-18 21:12:02,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 21:12:02,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:12:02,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 21:12:02,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 21:12:02,891 INFO L87 Difference]: Start difference. First operand 3178 states and 3483 transitions. Second operand 10 states. [2020-08-18 21:12:04,681 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-08-18 21:12:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:12:06,503 INFO L93 Difference]: Finished difference Result 6540 states and 7198 transitions. [2020-08-18 21:12:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 21:12:06,505 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 702 [2020-08-18 21:12:06,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:12:06,518 INFO L225 Difference]: With dead ends: 6540 [2020-08-18 21:12:06,519 INFO L226 Difference]: Without dead ends: 3552 [2020-08-18 21:12:06,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-18 21:12:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2020-08-18 21:12:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3548. [2020-08-18 21:12:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2020-08-18 21:12:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 3868 transitions. [2020-08-18 21:12:06,590 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 3868 transitions. Word has length 702 [2020-08-18 21:12:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:12:06,591 INFO L479 AbstractCegarLoop]: Abstraction has 3548 states and 3868 transitions. [2020-08-18 21:12:06,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 21:12:06,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 3868 transitions. [2020-08-18 21:12:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2020-08-18 21:12:06,600 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:12:06,600 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-08-18 21:12:06,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 21:12:06,601 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:12:06,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:12:06,601 INFO L82 PathProgramCache]: Analyzing trace with hash 326490438, now seen corresponding path program 1 times [2020-08-18 21:12:06,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:12:06,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529605797] [2020-08-18 21:12:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:12:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:06,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:12:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:06,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:12:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:12:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:06,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:12:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:06,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 21:12:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:06,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 21:12:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 733 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-08-18 21:12:07,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529605797] [2020-08-18 21:12:07,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:12:07,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 21:12:07,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277185717] [2020-08-18 21:12:07,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:12:07,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:12:07,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:12:07,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:12:07,527 INFO L87 Difference]: Start difference. First operand 3548 states and 3868 transitions. Second operand 7 states. [2020-08-18 21:12:09,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:12:09,078 INFO L93 Difference]: Finished difference Result 8032 states and 8888 transitions. [2020-08-18 21:12:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 21:12:09,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 728 [2020-08-18 21:12:09,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:12:09,108 INFO L225 Difference]: With dead ends: 8032 [2020-08-18 21:12:09,108 INFO L226 Difference]: Without dead ends: 4674 [2020-08-18 21:12:09,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:12:09,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-08-18 21:12:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4292. [2020-08-18 21:12:09,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 21:12:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4748 transitions. [2020-08-18 21:12:09,205 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4748 transitions. Word has length 728 [2020-08-18 21:12:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:12:09,207 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4748 transitions. [2020-08-18 21:12:09,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:12:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4748 transitions. [2020-08-18 21:12:09,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2020-08-18 21:12:09,219 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:12:09,220 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 21:12:09,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 21:12:09,220 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:12:09,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:12:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1244120290, now seen corresponding path program 1 times [2020-08-18 21:12:09,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:12:09,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889135294] [2020-08-18 21:12:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:12:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:12:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:12:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:12:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:12:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 21:12:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-18 21:12:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2020-08-18 21:12:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:10,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 291 proven. 6 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2020-08-18 21:12:10,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889135294] [2020-08-18 21:12:10,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:12:10,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 21:12:10,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026973986] [2020-08-18 21:12:10,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:12:10,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:12:10,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:12:10,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:12:10,106 INFO L87 Difference]: Start difference. First operand 4292 states and 4748 transitions. Second operand 5 states. [2020-08-18 21:12:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:12:11,406 INFO L93 Difference]: Finished difference Result 4296 states and 4751 transitions. [2020-08-18 21:12:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:12:11,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 783 [2020-08-18 21:12:11,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:12:11,419 INFO L225 Difference]: With dead ends: 4296 [2020-08-18 21:12:11,419 INFO L226 Difference]: Without dead ends: 4294 [2020-08-18 21:12:11,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:12:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-08-18 21:12:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4292. [2020-08-18 21:12:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 21:12:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4747 transitions. [2020-08-18 21:12:11,493 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4747 transitions. Word has length 783 [2020-08-18 21:12:11,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:12:11,494 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4747 transitions. [2020-08-18 21:12:11,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:12:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4747 transitions. [2020-08-18 21:12:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-08-18 21:12:11,508 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:12:11,509 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-08-18 21:12:11,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 21:12:11,510 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:12:11,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:12:11,510 INFO L82 PathProgramCache]: Analyzing trace with hash 277730204, now seen corresponding path program 1 times [2020-08-18 21:12:11,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:12:11,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850661058] [2020-08-18 21:12:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:12:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:12:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:12:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:12:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:12:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 21:12:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 21:12:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-18 21:12:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:11,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-18 21:12:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2344 backedges. 340 proven. 7 refuted. 0 times theorem prover too weak. 1997 trivial. 0 not checked. [2020-08-18 21:12:12,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850661058] [2020-08-18 21:12:12,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:12:12,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 21:12:12,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699870562] [2020-08-18 21:12:12,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:12:12,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:12:12,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:12:12,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:12:12,313 INFO L87 Difference]: Start difference. First operand 4292 states and 4747 transitions. Second operand 5 states. [2020-08-18 21:12:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:12:13,507 INFO L93 Difference]: Finished difference Result 4668 states and 5158 transitions. [2020-08-18 21:12:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:12:13,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 828 [2020-08-18 21:12:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:12:13,520 INFO L225 Difference]: With dead ends: 4668 [2020-08-18 21:12:13,520 INFO L226 Difference]: Without dead ends: 4666 [2020-08-18 21:12:13,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:12:13,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2020-08-18 21:12:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4292. [2020-08-18 21:12:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 21:12:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4751 transitions. [2020-08-18 21:12:13,597 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4751 transitions. Word has length 828 [2020-08-18 21:12:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:12:13,598 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4751 transitions. [2020-08-18 21:12:13,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:12:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4751 transitions. [2020-08-18 21:12:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2020-08-18 21:12:13,612 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:12:13,612 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 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] [2020-08-18 21:12:13,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-18 21:12:13,613 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:12:13,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:12:13,613 INFO L82 PathProgramCache]: Analyzing trace with hash 117494447, now seen corresponding path program 1 times [2020-08-18 21:12:13,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:12:13,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936186615] [2020-08-18 21:12:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:12:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:13,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:12:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:13,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:12:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:13,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 21:12:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:13,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 21:12:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:13,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 21:12:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:14,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 21:12:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:14,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-18 21:12:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-18 21:12:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:12:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 337 proven. 28 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2020-08-18 21:12:14,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936186615] [2020-08-18 21:12:14,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:12:14,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 21:12:14,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023124243] [2020-08-18 21:12:14,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:12:14,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:12:14,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:12:14,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:12:14,392 INFO L87 Difference]: Start difference. First operand 4292 states and 4751 transitions. Second operand 7 states. [2020-08-18 21:12:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:12:16,997 INFO L93 Difference]: Finished difference Result 4854 states and 5352 transitions. [2020-08-18 21:12:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 21:12:16,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 839 [2020-08-18 21:12:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:12:17,000 INFO L225 Difference]: With dead ends: 4854 [2020-08-18 21:12:17,000 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 21:12:17,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-08-18 21:12:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 21:12:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 21:12:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 21:12:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 21:12:17,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 839 [2020-08-18 21:12:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:12:17,011 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 21:12:17,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:12:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 21:12:17,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 21:12:17,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-18 21:12:17,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 21:12:17,494 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 163 [2020-08-18 21:12:17,723 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 163 [2020-08-18 21:12:18,707 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 41 [2020-08-18 21:12:19,360 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 38 [2020-08-18 21:12:19,992 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 38 [2020-08-18 21:12:19,997 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 21:12:19,998 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-08-18 21:12:19,998 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 21:12:19,998 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-08-18 21:12:19,998 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-08-18 21:12:19,999 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 21:12:20,000 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-08-18 21:12:20,001 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-08-18 21:12:20,002 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-08-18 21:12:20,003 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 21:12:20,004 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,005 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-08-18 21:12:20,006 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-08-18 21:12:20,007 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 21:12:20,008 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 21:12:20,009 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-08-18 21:12:20,009 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (= |old(~a24~0)| 1))) (.cse1 (and .cse2 (= ~a24~0 1) .cse3 .cse4))) (and (or .cse0 .cse1 (not (= 9 |old(~a15~0)|))) (or (and (= ~a24~0 |old(~a24~0)|) .cse2 .cse3 .cse4) (let ((.cse5 (not (<= |old(~a15~0)| 6)))) (and (or (= 8 |old(~a21~0)|) .cse5) (or .cse0 .cse5 (not (<= |old(~a12~0)| 80)))))) (or .cse0 .cse1 (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a15~0)|)))))) [2020-08-18 21:12:20,009 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-08-18 21:12:20,009 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-08-18 21:12:20,009 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,009 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-08-18 21:12:20,010 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 21:12:20,011 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 21:12:20,012 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 21:12:20,013 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-08-18 21:12:20,014 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,015 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-08-18 21:12:20,016 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-08-18 21:12:20,017 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 21:12:20,018 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-08-18 21:12:20,019 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,020 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,021 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-08-18 21:12:20,022 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-08-18 21:12:20,023 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-08-18 21:12:20,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 21:12:20,025 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-08-18 21:12:20,025 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 21:12:20,025 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 21:12:20,025 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-08-18 21:12:20,025 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-08-18 21:12:20,025 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 6))) (or (and (<= 7 ~a15~0) .cse0 (<= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a15~0 9)) (not (= 8 |old(~a15~0)|)) (and .cse0 (<= ~a12~0 80) .cse1) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 8)) .cse1))) [2020-08-18 21:12:20,026 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-08-18 21:12:20,026 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-18 21:12:20,026 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 6))) (or (and (<= 7 ~a15~0) .cse0 (<= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a15~0 9)) (not (= 8 |old(~a15~0)|)) (and .cse0 (<= ~a12~0 80) .cse1) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 8)) .cse1))) [2020-08-18 21:12:20,026 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-08-18 21:12:20,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 09:12:20 BoogieIcfgContainer [2020-08-18 21:12:20,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 21:12:20,049 INFO L168 Benchmark]: Toolchain (without parser) took 53023.01 ms. Allocated memory was 141.0 MB in the beginning and 1.1 GB in the end (delta: 976.2 MB). Free memory was 100.9 MB in the beginning and 262.7 MB in the end (delta: -161.8 MB). Peak memory consumption was 814.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:12:20,050 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 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. [2020-08-18 21:12:20,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.68 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 100.6 MB in the beginning and 169.6 MB in the end (delta: -68.9 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:12:20,051 INFO L168 Benchmark]: Boogie Preprocessor took 169.50 ms. Allocated memory is still 206.6 MB. Free memory was 169.6 MB in the beginning and 164.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:12:20,052 INFO L168 Benchmark]: RCFGBuilder took 1626.57 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 164.0 MB in the beginning and 157.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2020-08-18 21:12:20,053 INFO L168 Benchmark]: TraceAbstraction took 50350.94 ms. Allocated memory was 240.6 MB in the beginning and 1.1 GB in the end (delta: 876.6 MB). Free memory was 157.3 MB in the beginning and 262.7 MB in the end (delta: -105.4 MB). Peak memory consumption was 771.3 MB. Max. memory is 7.1 GB. [2020-08-18 21:12:20,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 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 869.68 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 100.6 MB in the beginning and 169.6 MB in the end (delta: -68.9 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.50 ms. Allocated memory is still 206.6 MB. Free memory was 169.6 MB in the beginning and 164.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1626.57 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 164.0 MB in the beginning and 157.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50350.94 ms. Allocated memory was 240.6 MB in the beginning and 1.1 GB in the end (delta: 876.6 MB). Free memory was 157.3 MB in the beginning and 262.7 MB in the end (delta: -105.4 MB). Peak memory consumption was 771.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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: ((((((((7 <= a15 && a24 == 1) && a15 <= 8) || !(7 == \old(a21))) || !(\old(a24) == 1)) || (a24 == 1 && a15 == 9)) || !(8 == \old(a15))) || ((a24 == 1 && a12 <= 80) && a15 <= 6)) || !(\old(a12) + 49 <= 0)) || (!(a21 == 8) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 47.2s, OverallIterations: 14, TraceHistogramMax: 8, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 14454 SDslu, 532 SDs, 0 SdLazy, 18427 SolverSat, 3161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 229 SyntacticMatches, 2 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4292occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 2222 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 148 PreInvPairs, 210 NumberOfFragments, 276 HoareAnnotationTreeSize, 148 FomulaSimplifications, 57628 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16896 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 7050 NumberOfCodeBlocks, 7050 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7036 ConstructedInterpolants, 0 QuantifiedInterpolants, 11310831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 13071/14015 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...