/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 17:24:16,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 17:24:16,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 17:24:16,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 17:24:16,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 17:24:16,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 17:24:16,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 17:24:16,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 17:24:16,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 17:24:16,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 17:24:16,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 17:24:16,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 17:24:16,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 17:24:16,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 17:24:16,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 17:24:16,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 17:24:16,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 17:24:16,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 17:24:16,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 17:24:16,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 17:24:16,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 17:24:16,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 17:24:16,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 17:24:16,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 17:24:16,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 17:24:16,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 17:24:16,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 17:24:16,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 17:24:16,818 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 [2020-08-21 17:24:16,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 17:24:16,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 17:24:16,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 17:24:16,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 17:24:16,843 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 17:24:16,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 17:24:16,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 17:24:16,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 17:24:16,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 17:24:16,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 17:24:16,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 17:24:16,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 17:24:16,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 17:24:16,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 17:24:16,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 17:24:16,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 17:24:16,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 17:24:16,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 17:24:16,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 17:24:16,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 17:24:16,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 17:24:16,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:24:16,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 17:24:16,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 17:24:16,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 17:24:16,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 17:24:16,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 17:24:16,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 17:24:16,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 17:24:16,851 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=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-08-21 17:24:17,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 17:24:17,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 17:24:17,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 17:24:17,175 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 17:24:17,175 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 17:24:17,176 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-08-21 17:24:17,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56fbfc439/86e1f024d9a54815b94a9c43315fb268/FLAGabe99e1fc [2020-08-21 17:24:17,725 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 17:24:17,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-08-21 17:24:17,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56fbfc439/86e1f024d9a54815b94a9c43315fb268/FLAGabe99e1fc [2020-08-21 17:24:18,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56fbfc439/86e1f024d9a54815b94a9c43315fb268 [2020-08-21 17:24:18,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 17:24:18,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 17:24:18,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 17:24:18,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 17:24:18,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 17:24:18,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18, skipping insertion in model container [2020-08-21 17:24:18,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 17:24:18,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 17:24:18,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:24:18,623 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 17:24:18,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:24:18,787 INFO L208 MainTranslator]: Completed translation [2020-08-21 17:24:18,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18 WrapperNode [2020-08-21 17:24:18,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 17:24:18,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 17:24:18,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 17:24:18,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 17:24:18,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (1/1) ... [2020-08-21 17:24:18,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 17:24:18,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 17:24:18,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 17:24:18,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 17:24:18,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (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 [2020-08-21 17:24:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 17:24:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 17:24:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 17:24:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 17:24:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 17:24:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 17:24:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 17:24:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 17:24:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 17:24:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 17:24:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 17:24:20,166 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 17:24:20,167 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 17:24:20,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:24:20 BoogieIcfgContainer [2020-08-21 17:24:20,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 17:24:20,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 17:24:20,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 17:24:20,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 17:24:20,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:24:18" (1/3) ... [2020-08-21 17:24:20,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79952d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:24:20, skipping insertion in model container [2020-08-21 17:24:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:24:18" (2/3) ... [2020-08-21 17:24:20,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79952d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:24:20, skipping insertion in model container [2020-08-21 17:24:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:24:20" (3/3) ... [2020-08-21 17:24:20,182 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-08-21 17:24:20,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 17:24:20,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 17:24:20,220 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 17:24:20,249 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 17:24:20,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 17:24:20,250 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 17:24:20,250 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 17:24:20,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 17:24:20,251 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 17:24:20,251 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 17:24:20,251 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 17:24:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-21 17:24:20,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 17:24:20,299 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:20,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:24:20,300 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:20,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:20,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-08-21 17:24:20,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:20,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496328616] [2020-08-21 17:24:20,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:20,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:24:20,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496328616] [2020-08-21 17:24:20,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:24:20,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 17:24:20,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139567985] [2020-08-21 17:24:20,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 17:24:20,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:20,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 17:24:20,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:24:20,820 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-21 17:24:22,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:22,798 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2020-08-21 17:24:22,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 17:24:22,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-08-21 17:24:22,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:22,817 INFO L225 Difference]: With dead ends: 730 [2020-08-21 17:24:22,818 INFO L226 Difference]: Without dead ends: 447 [2020-08-21 17:24:22,826 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 [2020-08-21 17:24:22,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-21 17:24:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2020-08-21 17:24:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-08-21 17:24:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 615 transitions. [2020-08-21 17:24:22,920 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 615 transitions. Word has length 67 [2020-08-21 17:24:22,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:22,921 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 615 transitions. [2020-08-21 17:24:22,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 17:24:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 615 transitions. [2020-08-21 17:24:22,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-08-21 17:24:22,929 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:22,929 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, 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] [2020-08-21 17:24:22,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 17:24:22,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:22,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:22,930 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-08-21 17:24:22,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:22,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550482877] [2020-08-21 17:24:22,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:23,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:23,341 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:24:23,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550482877] [2020-08-21 17:24:23,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:24:23,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 17:24:23,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70347296] [2020-08-21 17:24:23,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 17:24:23,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:23,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 17:24:23,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:24:23,345 INFO L87 Difference]: Start difference. First operand 443 states and 615 transitions. Second operand 7 states. [2020-08-21 17:24:24,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:24,594 INFO L93 Difference]: Finished difference Result 1033 states and 1409 transitions. [2020-08-21 17:24:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 17:24:24,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-08-21 17:24:24,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:24,601 INFO L225 Difference]: With dead ends: 1033 [2020-08-21 17:24:24,601 INFO L226 Difference]: Without dead ends: 596 [2020-08-21 17:24:24,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:24:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-08-21 17:24:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 592. [2020-08-21 17:24:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-08-21 17:24:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 781 transitions. [2020-08-21 17:24:24,636 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 781 transitions. Word has length 144 [2020-08-21 17:24:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:24,637 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 781 transitions. [2020-08-21 17:24:24,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 17:24:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 781 transitions. [2020-08-21 17:24:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-08-21 17:24:24,650 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:24,651 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 17:24:24,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 17:24:24,651 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:24,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:24,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1146813015, now seen corresponding path program 1 times [2020-08-21 17:24:24,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:24,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411811441] [2020-08-21 17:24:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:24,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:24,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:24,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 17:24:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 112 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-08-21 17:24:24,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411811441] [2020-08-21 17:24:24,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:24,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 17:24:24,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92802432] [2020-08-21 17:24:24,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 17:24:24,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:24,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 17:24:24,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:24:24,939 INFO L87 Difference]: Start difference. First operand 592 states and 781 transitions. Second operand 7 states. [2020-08-21 17:24:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:26,996 INFO L93 Difference]: Finished difference Result 1768 states and 2478 transitions. [2020-08-21 17:24:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 17:24:26,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-08-21 17:24:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:27,011 INFO L225 Difference]: With dead ends: 1768 [2020-08-21 17:24:27,011 INFO L226 Difference]: Without dead ends: 1325 [2020-08-21 17:24:27,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 17:24:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2020-08-21 17:24:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1180. [2020-08-21 17:24:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-08-21 17:24:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1600 transitions. [2020-08-21 17:24:27,068 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1600 transitions. Word has length 214 [2020-08-21 17:24:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:27,069 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1600 transitions. [2020-08-21 17:24:27,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 17:24:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1600 transitions. [2020-08-21 17:24:27,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-08-21 17:24:27,078 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:27,079 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 17:24:27,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 17:24:27,079 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:27,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:27,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1807493347, now seen corresponding path program 1 times [2020-08-21 17:24:27,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:27,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884973277] [2020-08-21 17:24:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:27,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:27,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:27,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 17:24:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:27,766 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 17:24:27,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884973277] [2020-08-21 17:24:27,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:27,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 17:24:27,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267990813] [2020-08-21 17:24:27,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 17:24:27,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:27,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 17:24:27,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-21 17:24:27,770 INFO L87 Difference]: Start difference. First operand 1180 states and 1600 transitions. Second operand 12 states. [2020-08-21 17:24:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:31,182 INFO L93 Difference]: Finished difference Result 2974 states and 4211 transitions. [2020-08-21 17:24:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-21 17:24:31,183 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 256 [2020-08-21 17:24:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:31,193 INFO L225 Difference]: With dead ends: 2974 [2020-08-21 17:24:31,193 INFO L226 Difference]: Without dead ends: 1943 [2020-08-21 17:24:31,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2020-08-21 17:24:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2020-08-21 17:24:31,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1788. [2020-08-21 17:24:31,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1788 states. [2020-08-21 17:24:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2375 transitions. [2020-08-21 17:24:31,258 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2375 transitions. Word has length 256 [2020-08-21 17:24:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:31,259 INFO L479 AbstractCegarLoop]: Abstraction has 1788 states and 2375 transitions. [2020-08-21 17:24:31,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 17:24:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2375 transitions. [2020-08-21 17:24:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-08-21 17:24:31,266 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:31,266 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:24:31,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 17:24:31,267 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:31,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1006495754, now seen corresponding path program 1 times [2020-08-21 17:24:31,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:31,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244773789] [2020-08-21 17:24:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:31,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 17:24:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 124 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 17:24:31,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244773789] [2020-08-21 17:24:31,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:31,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 17:24:31,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629574839] [2020-08-21 17:24:31,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 17:24:31,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:31,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 17:24:31,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:24:31,638 INFO L87 Difference]: Start difference. First operand 1788 states and 2375 transitions. Second operand 10 states. [2020-08-21 17:24:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:34,742 INFO L93 Difference]: Finished difference Result 4483 states and 6103 transitions. [2020-08-21 17:24:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 17:24:34,747 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2020-08-21 17:24:34,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:34,761 INFO L225 Difference]: With dead ends: 4483 [2020-08-21 17:24:34,762 INFO L226 Difference]: Without dead ends: 2817 [2020-08-21 17:24:34,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-08-21 17:24:34,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2020-08-21 17:24:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2380. [2020-08-21 17:24:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-08-21 17:24:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3210 transitions. [2020-08-21 17:24:34,855 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3210 transitions. Word has length 265 [2020-08-21 17:24:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:34,856 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3210 transitions. [2020-08-21 17:24:34,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 17:24:34,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3210 transitions. [2020-08-21 17:24:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-08-21 17:24:34,864 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:34,866 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 17:24:34,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 17:24:34,866 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:34,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:34,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1040380270, now seen corresponding path program 1 times [2020-08-21 17:24:34,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:34,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46501119] [2020-08-21 17:24:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:35,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:35,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 17:24:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 17:24:35,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46501119] [2020-08-21 17:24:35,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:35,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 17:24:35,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282495001] [2020-08-21 17:24:35,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:24:35,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:24:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:24:35,627 INFO L87 Difference]: Start difference. First operand 2380 states and 3210 transitions. Second operand 9 states. [2020-08-21 17:24:40,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:40,528 INFO L93 Difference]: Finished difference Result 5507 states and 7463 transitions. [2020-08-21 17:24:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 17:24:40,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 301 [2020-08-21 17:24:40,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:40,544 INFO L225 Difference]: With dead ends: 5507 [2020-08-21 17:24:40,544 INFO L226 Difference]: Without dead ends: 3276 [2020-08-21 17:24:40,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-08-21 17:24:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2020-08-21 17:24:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3272. [2020-08-21 17:24:40,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3272 states. [2020-08-21 17:24:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 4302 transitions. [2020-08-21 17:24:40,632 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 4302 transitions. Word has length 301 [2020-08-21 17:24:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:40,633 INFO L479 AbstractCegarLoop]: Abstraction has 3272 states and 4302 transitions. [2020-08-21 17:24:40,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:24:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 4302 transitions. [2020-08-21 17:24:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-08-21 17:24:40,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:40,646 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, 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, 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] [2020-08-21 17:24:40,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 17:24:40,646 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:40,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1714845138, now seen corresponding path program 1 times [2020-08-21 17:24:40,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:40,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17412860] [2020-08-21 17:24:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:40,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:40,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 17:24:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:40,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-21 17:24:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:41,265 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 363 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-08-21 17:24:41,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17412860] [2020-08-21 17:24:41,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:41,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 17:24:41,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508823739] [2020-08-21 17:24:41,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:24:41,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:41,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:24:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:24:41,271 INFO L87 Difference]: Start difference. First operand 3272 states and 4302 transitions. Second operand 9 states. [2020-08-21 17:24:44,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:44,493 INFO L93 Difference]: Finished difference Result 7541 states and 10111 transitions. [2020-08-21 17:24:44,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 17:24:44,495 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 373 [2020-08-21 17:24:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:44,513 INFO L225 Difference]: With dead ends: 7541 [2020-08-21 17:24:44,514 INFO L226 Difference]: Without dead ends: 4418 [2020-08-21 17:24:44,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-08-21 17:24:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2020-08-21 17:24:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 2986. [2020-08-21 17:24:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2986 states. [2020-08-21 17:24:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 3596 transitions. [2020-08-21 17:24:44,654 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 3596 transitions. Word has length 373 [2020-08-21 17:24:44,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:44,655 INFO L479 AbstractCegarLoop]: Abstraction has 2986 states and 3596 transitions. [2020-08-21 17:24:44,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:24:44,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 3596 transitions. [2020-08-21 17:24:44,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-08-21 17:24:44,663 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:44,664 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, 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, 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] [2020-08-21 17:24:44,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 17:24:44,664 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:44,665 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-08-21 17:24:44,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:44,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102781456] [2020-08-21 17:24:44,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:44,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:44,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 17:24:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:45,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-21 17:24:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 255 proven. 187 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-21 17:24:45,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102781456] [2020-08-21 17:24:45,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:45,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 17:24:45,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627942650] [2020-08-21 17:24:45,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 17:24:45,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:45,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 17:24:45,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-21 17:24:45,284 INFO L87 Difference]: Start difference. First operand 2986 states and 3596 transitions. Second operand 11 states. [2020-08-21 17:24:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:49,762 INFO L93 Difference]: Finished difference Result 6564 states and 8120 transitions. [2020-08-21 17:24:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-21 17:24:49,764 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 378 [2020-08-21 17:24:49,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:49,779 INFO L225 Difference]: With dead ends: 6564 [2020-08-21 17:24:49,779 INFO L226 Difference]: Without dead ends: 4023 [2020-08-21 17:24:49,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2020-08-21 17:24:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2020-08-21 17:24:49,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 3435. [2020-08-21 17:24:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3435 states. [2020-08-21 17:24:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4055 transitions. [2020-08-21 17:24:49,865 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4055 transitions. Word has length 378 [2020-08-21 17:24:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:49,866 INFO L479 AbstractCegarLoop]: Abstraction has 3435 states and 4055 transitions. [2020-08-21 17:24:49,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 17:24:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4055 transitions. [2020-08-21 17:24:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2020-08-21 17:24:49,875 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:49,876 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 17:24:49,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 17:24:49,876 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:49,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1328157818, now seen corresponding path program 1 times [2020-08-21 17:24:49,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:49,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106462904] [2020-08-21 17:24:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:50,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:50,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:50,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 17:24:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-21 17:24:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 185 proven. 188 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-08-21 17:24:50,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106462904] [2020-08-21 17:24:50,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:50,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 17:24:50,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083457175] [2020-08-21 17:24:50,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 17:24:50,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:50,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 17:24:50,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-21 17:24:50,763 INFO L87 Difference]: Start difference. First operand 3435 states and 4055 transitions. Second operand 14 states. [2020-08-21 17:24:56,212 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-08-21 17:24:56,731 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-08-21 17:24:57,275 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-08-21 17:24:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:24:58,309 INFO L93 Difference]: Finished difference Result 7319 states and 8836 transitions. [2020-08-21 17:24:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-08-21 17:24:58,310 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 389 [2020-08-21 17:24:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:24:58,330 INFO L225 Difference]: With dead ends: 7319 [2020-08-21 17:24:58,330 INFO L226 Difference]: Without dead ends: 4478 [2020-08-21 17:24:58,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=629, Invalid=2677, Unknown=0, NotChecked=0, Total=3306 [2020-08-21 17:24:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2020-08-21 17:24:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3882. [2020-08-21 17:24:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2020-08-21 17:24:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4571 transitions. [2020-08-21 17:24:58,472 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4571 transitions. Word has length 389 [2020-08-21 17:24:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:24:58,473 INFO L479 AbstractCegarLoop]: Abstraction has 3882 states and 4571 transitions. [2020-08-21 17:24:58,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 17:24:58,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4571 transitions. [2020-08-21 17:24:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-08-21 17:24:58,483 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:24:58,484 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, 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, 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] [2020-08-21 17:24:58,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 17:24:58,484 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:24:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:24:58,485 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-08-21 17:24:58,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:24:58,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882997519] [2020-08-21 17:24:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:24:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:58,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:24:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:24:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:58,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-21 17:24:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-08-21 17:24:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:24:59,211 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 376 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-08-21 17:24:59,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882997519] [2020-08-21 17:24:59,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:24:59,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 17:24:59,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612512490] [2020-08-21 17:24:59,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 17:24:59,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:24:59,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 17:24:59,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-08-21 17:24:59,214 INFO L87 Difference]: Start difference. First operand 3882 states and 4571 transitions. Second operand 12 states. [2020-08-21 17:24:59,964 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-08-21 17:25:02,017 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-08-21 17:25:02,522 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-08-21 17:25:03,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:03,377 INFO L93 Difference]: Finished difference Result 7333 states and 8707 transitions. [2020-08-21 17:25:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-21 17:25:03,378 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-08-21 17:25:03,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:03,392 INFO L225 Difference]: With dead ends: 7333 [2020-08-21 17:25:03,392 INFO L226 Difference]: Without dead ends: 4045 [2020-08-21 17:25:03,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2020-08-21 17:25:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2020-08-21 17:25:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4021. [2020-08-21 17:25:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4021 states. [2020-08-21 17:25:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 4663 transitions. [2020-08-21 17:25:03,591 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 4663 transitions. Word has length 397 [2020-08-21 17:25:03,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:03,592 INFO L479 AbstractCegarLoop]: Abstraction has 4021 states and 4663 transitions. [2020-08-21 17:25:03,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 17:25:03,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 4663 transitions. [2020-08-21 17:25:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-08-21 17:25:03,605 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:03,605 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, 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, 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] [2020-08-21 17:25:03,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 17:25:03,606 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:03,606 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-08-21 17:25:03,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:03,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250073136] [2020-08-21 17:25:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:03,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:03,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:03,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-21 17:25:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:03,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-21 17:25:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-08-21 17:25:04,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250073136] [2020-08-21 17:25:04,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:04,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 17:25:04,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476877380] [2020-08-21 17:25:04,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 17:25:04,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:04,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 17:25:04,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:25:04,212 INFO L87 Difference]: Start difference. First operand 4021 states and 4663 transitions. Second operand 5 states. [2020-08-21 17:25:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:05,577 INFO L93 Difference]: Finished difference Result 5187 states and 6108 transitions. [2020-08-21 17:25:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 17:25:05,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 407 [2020-08-21 17:25:05,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:05,579 INFO L225 Difference]: With dead ends: 5187 [2020-08-21 17:25:05,579 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 17:25:05,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 17:25:05,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 17:25:05,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 17:25:05,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 17:25:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 17:25:05,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-08-21 17:25:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:05,588 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 17:25:05,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 17:25:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 17:25:05,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 17:25:05,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 17:25:05,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 17:25:06,275 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 197 [2020-08-21 17:25:06,578 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 197 [2020-08-21 17:25:07,710 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 38 [2020-08-21 17:25:08,500 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-21 17:25:09,247 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-21 17:25:09,251 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 17:25:09,252 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-21 17:25:09,252 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 17:25:09,252 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-21 17:25:09,252 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,252 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,252 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-21 17:25:09,253 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,254 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-21 17:25:09,255 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-21 17:25:09,256 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 17:25:09,257 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-21 17:25:09,258 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-21 17:25:09,259 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-21 17:25:09,260 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-21 17:25:09,261 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-21 17:25:09,262 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-21 17:25:09,263 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-21 17:25:09,264 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-21 17:25:09,265 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-21 17:25:09,266 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,267 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-21 17:25:09,268 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-21 17:25:09,269 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 17:25:09,269 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-21 17:25:09,269 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-21 17:25:09,269 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-21 17:25:09,269 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-21 17:25:09,269 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= 9 |old(~a19~0)|)) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 0 (+ |old(~a1~0)| 12))) .cse3) (or (not .cse0) .cse1 (not (<= |old(~a1~0)| 4)) .cse2 .cse3) (or .cse1 (= 3 |old(~a10~0)|) .cse2 .cse3) (or (not (<= 23 |old(~a1~0)|)) .cse1 .cse2 .cse3))) [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,270 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-21 17:25:09,271 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-21 17:25:09,272 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-21 17:25:09,273 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-21 17:25:09,274 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-21 17:25:09,275 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-21 17:25:09,276 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-21 17:25:09,277 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 17:25:09,277 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (= ~a12~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-08-21 17:25:09,277 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 17:25:09,277 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 17:25:09,277 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (= ~a12~0 0))) [2020-08-21 17:25:09,277 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-21 17:25:09,278 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= 23 ~a1~0)) (.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|)))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 4) .cse1) (not (<= |old(~a10~0)| 0)) (and .cse0 .cse2) (and .cse2 (<= ~a1~0 23) .cse1 (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (and .cse0 (not (= ~a10~0 3))) (and (= ~a19~0 8) (= ~a10~0 1) (<= 331505 ~a1~0)) (and .cse0 (<= 0 (+ ~a1~0 12)) (not (= ~a19~0 9))) (not (= ~a12~0 0)))) [2020-08-21 17:25:09,278 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-21 17:25:09,278 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-21 17:25:09,278 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= 23 ~a1~0)) (.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|)))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 4) .cse1) (not (<= |old(~a10~0)| 0)) (and .cse0 .cse2) (and .cse2 (<= ~a1~0 23) .cse1 (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (and .cse0 (not (= ~a10~0 3))) (and (= ~a19~0 8) (= ~a10~0 1) (<= 331505 ~a1~0)) (and .cse0 (<= 0 (+ ~a1~0 12)) (not (= ~a19~0 9))) (not (= ~a12~0 0)))) [2020-08-21 17:25:09,278 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-21 17:25:09,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:25:09 BoogieIcfgContainer [2020-08-21 17:25:09,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 17:25:09,302 INFO L168 Benchmark]: Toolchain (without parser) took 51225.94 ms. Allocated memory was 138.9 MB in the beginning and 762.8 MB in the end (delta: 623.9 MB). Free memory was 100.2 MB in the beginning and 284.4 MB in the end (delta: -184.2 MB). Peak memory consumption was 615.9 MB. Max. memory is 7.1 GB. [2020-08-21 17:25:09,302 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 17:25:09,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.92 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 167.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-08-21 17:25:09,304 INFO L168 Benchmark]: Boogie Preprocessor took 98.59 ms. Allocated memory is still 203.4 MB. Free memory was 167.4 MB in the beginning and 162.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-21 17:25:09,305 INFO L168 Benchmark]: RCFGBuilder took 1285.65 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 162.4 MB in the beginning and 178.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-08-21 17:25:09,306 INFO L168 Benchmark]: TraceAbstraction took 49125.53 ms. Allocated memory was 235.9 MB in the beginning and 762.8 MB in the end (delta: 526.9 MB). Free memory was 178.3 MB in the beginning and 284.4 MB in the end (delta: -106.1 MB). Peak memory consumption was 596.9 MB. Max. memory is 7.1 GB. [2020-08-21 17:25:09,308 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 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.92 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 167.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.59 ms. Allocated memory is still 203.4 MB. Free memory was 167.4 MB in the beginning and 162.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1285.65 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 162.4 MB in the beginning and 178.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49125.53 ms. Allocated memory was 235.9 MB in the beginning and 762.8 MB in the end (delta: 526.9 MB). Free memory was 178.3 MB in the beginning and 284.4 MB in the end (delta: -106.1 MB). Peak memory consumption was 596.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 <= \old(a1)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a1 <= 4) && a19 == \old(a19))) || !(\old(a10) <= 0)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 23 <= a1)) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && !(a10 == 3))) || ((a19 == 8 && a10 == 1) && 331505 <= a1)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 0 <= a1 + 12) && !(a19 == 9))) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 45.3s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 37.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 388 SDtfs, 10818 SDslu, 632 SDs, 0 SdLazy, 19397 SolverSat, 3724 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 23.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4021occurred in iteration=10, 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, 11 MinimizatonAttempts, 3389 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 238 NumberOfFragments, 410 HoareAnnotationTreeSize, 162 FomulaSimplifications, 15737 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12717 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3191 NumberOfCodeBlocks, 3191 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3180 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 2651/3127 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...