/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 12:13:13,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 12:13:13,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 12:13:13,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-18 12:13:13,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 12:13:13,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 12:13:13,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 12:13:13,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 12:13:13,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 12:13:13,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 12:13:13,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 12:13:13,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 12:13:13,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 12:13:13,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 12:13:13,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 12:13:13,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 12:13:13,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 12:13:13,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 12:13:13,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 12:13:13,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 12:13:13,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 12:13:13,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 12:13:13,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 12:13:13,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 12:13:13,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 12:13:13,898 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 12:13:13,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 12:13:13,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 12:13:13,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 12:13:13,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 12:13:13,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 12:13:13,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 12:13:13,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 12:13:13,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 12:13:13,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 12:13:13,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 12:13:13,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 12:13:13,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 12:13:13,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 12:13:13,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 12:13:13,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 12:13:13,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 12:13:13,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:13:13,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 12:13:13,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 12:13:13,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 12:13:13,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 12:13:13,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 12:13:13,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 12:13:13,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 12:13:13,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 12:13:14,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 12:13:14,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 12:13:14,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 12:13:14,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 12:13:14,206 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 12:13:14,207 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-08-18 12:13:14,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b68d831c/8ffe2a9d8f174fe6b58160806bb0d847/FLAGd0afa4929 [2020-08-18 12:13:14,840 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 12:13:14,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-08-18 12:13:14,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b68d831c/8ffe2a9d8f174fe6b58160806bb0d847/FLAGd0afa4929 [2020-08-18 12:13:15,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b68d831c/8ffe2a9d8f174fe6b58160806bb0d847 [2020-08-18 12:13:15,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 12:13:15,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 12:13:15,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 12:13:15,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 12:13:15,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 12:13:15,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:13:15" (1/1) ... [2020-08-18 12:13:15,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ca24e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:15, skipping insertion in model container [2020-08-18 12:13:15,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:13:15" (1/1) ... [2020-08-18 12:13:15,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 12:13:15,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 12:13:15,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:13:15,837 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 12:13:16,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:13:16,038 INFO L208 MainTranslator]: Completed translation [2020-08-18 12:13:16,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16 WrapperNode [2020-08-18 12:13:16,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 12:13:16,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 12:13:16,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 12:13:16,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 12:13:16,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... [2020-08-18 12:13:16,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 12:13:16,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 12:13:16,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 12:13:16,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 12:13:16,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:13:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 12:13:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 12:13:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 12:13:16,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 12:13:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 12:13:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 12:13:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 12:13:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 12:13:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 12:13:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 12:13:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 12:13:17,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 12:13:17,901 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 12:13:17,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:13:17 BoogieIcfgContainer [2020-08-18 12:13:17,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 12:13:17,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 12:13:17,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 12:13:17,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 12:13:17,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 12:13:15" (1/3) ... [2020-08-18 12:13:17,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f32719e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:13:17, skipping insertion in model container [2020-08-18 12:13:17,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:13:16" (2/3) ... [2020-08-18 12:13:17,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f32719e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:13:17, skipping insertion in model container [2020-08-18 12:13:17,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:13:17" (3/3) ... [2020-08-18 12:13:17,922 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label01.c [2020-08-18 12:13:17,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 12:13:17,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 12:13:17,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 12:13:17,980 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 12:13:17,980 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 12:13:17,980 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 12:13:17,980 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 12:13:17,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 12:13:17,981 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 12:13:17,981 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 12:13:17,981 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 12:13:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-08-18 12:13:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-18 12:13:18,021 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:18,023 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] [2020-08-18 12:13:18,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:18,031 INFO L82 PathProgramCache]: Analyzing trace with hash -184228989, now seen corresponding path program 1 times [2020-08-18 12:13:18,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:18,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414566945] [2020-08-18 12:13:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:18,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:13:18,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414566945] [2020-08-18 12:13:18,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:13:18,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 12:13:18,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133758888] [2020-08-18 12:13:18,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 12:13:18,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:18,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 12:13:18,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:13:18,513 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-08-18 12:13:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:21,139 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-08-18 12:13:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 12:13:21,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-18 12:13:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:21,160 INFO L225 Difference]: With dead ends: 886 [2020-08-18 12:13:21,160 INFO L226 Difference]: Without dead ends: 564 [2020-08-18 12:13:21,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:13:21,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-08-18 12:13:21,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-08-18 12:13:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-08-18 12:13:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 861 transitions. [2020-08-18 12:13:21,264 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 861 transitions. Word has length 60 [2020-08-18 12:13:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:21,264 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 861 transitions. [2020-08-18 12:13:21,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 12:13:21,265 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 861 transitions. [2020-08-18 12:13:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-18 12:13:21,273 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:21,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:21,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 12:13:21,274 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:21,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:21,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2117260534, now seen corresponding path program 1 times [2020-08-18 12:13:21,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:21,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062104330] [2020-08-18 12:13:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:21,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:21,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:13:21,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062104330] [2020-08-18 12:13:21,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:13:21,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 12:13:21,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656909867] [2020-08-18 12:13:21,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:13:21,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:21,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:13:21,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:13:21,552 INFO L87 Difference]: Start difference. First operand 560 states and 861 transitions. Second operand 7 states. [2020-08-18 12:13:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:23,471 INFO L93 Difference]: Finished difference Result 1518 states and 2374 transitions. [2020-08-18 12:13:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 12:13:23,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-08-18 12:13:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:23,480 INFO L225 Difference]: With dead ends: 1518 [2020-08-18 12:13:23,480 INFO L226 Difference]: Without dead ends: 964 [2020-08-18 12:13:23,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 12:13:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-08-18 12:13:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 944. [2020-08-18 12:13:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-08-18 12:13:23,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2020-08-18 12:13:23,551 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 154 [2020-08-18 12:13:23,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:23,552 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2020-08-18 12:13:23,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:13:23,552 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2020-08-18 12:13:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-08-18 12:13:23,557 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:23,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:23,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 12:13:23,558 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:23,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:23,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1698067270, now seen corresponding path program 1 times [2020-08-18 12:13:23,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:23,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9694801] [2020-08-18 12:13:23,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:23,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:23,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:13:23,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9694801] [2020-08-18 12:13:23,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:13:23,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 12:13:23,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639267576] [2020-08-18 12:13:23,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 12:13:23,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:23,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 12:13:23,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 12:13:23,930 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand 8 states. [2020-08-18 12:13:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:25,771 INFO L93 Difference]: Finished difference Result 2490 states and 3798 transitions. [2020-08-18 12:13:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 12:13:25,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-08-18 12:13:25,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:25,791 INFO L225 Difference]: With dead ends: 2490 [2020-08-18 12:13:25,791 INFO L226 Difference]: Without dead ends: 1552 [2020-08-18 12:13:25,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-18 12:13:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-08-18 12:13:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1518. [2020-08-18 12:13:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-08-18 12:13:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2119 transitions. [2020-08-18 12:13:25,860 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2119 transitions. Word has length 200 [2020-08-18 12:13:25,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:25,861 INFO L479 AbstractCegarLoop]: Abstraction has 1518 states and 2119 transitions. [2020-08-18 12:13:25,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 12:13:25,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2119 transitions. [2020-08-18 12:13:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-08-18 12:13:25,866 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:25,866 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:25,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 12:13:25,867 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:25,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:25,867 INFO L82 PathProgramCache]: Analyzing trace with hash 328652488, now seen corresponding path program 1 times [2020-08-18 12:13:25,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:25,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319459884] [2020-08-18 12:13:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:25,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:26,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:26,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 12:13:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-18 12:13:26,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319459884] [2020-08-18 12:13:26,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:26,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 12:13:26,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428391565] [2020-08-18 12:13:26,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 12:13:26,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:26,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 12:13:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 12:13:26,290 INFO L87 Difference]: Start difference. First operand 1518 states and 2119 transitions. Second operand 8 states. [2020-08-18 12:13:28,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:28,149 INFO L93 Difference]: Finished difference Result 3412 states and 4693 transitions. [2020-08-18 12:13:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 12:13:28,150 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 219 [2020-08-18 12:13:28,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:28,160 INFO L225 Difference]: With dead ends: 3412 [2020-08-18 12:13:28,161 INFO L226 Difference]: Without dead ends: 1900 [2020-08-18 12:13:28,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 12:13:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-08-18 12:13:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1890. [2020-08-18 12:13:28,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2020-08-18 12:13:28,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2517 transitions. [2020-08-18 12:13:28,236 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2517 transitions. Word has length 219 [2020-08-18 12:13:28,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:28,236 INFO L479 AbstractCegarLoop]: Abstraction has 1890 states and 2517 transitions. [2020-08-18 12:13:28,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 12:13:28,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2517 transitions. [2020-08-18 12:13:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-18 12:13:28,242 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:28,243 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:28,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 12:13:28,243 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:28,244 INFO L82 PathProgramCache]: Analyzing trace with hash -56962879, now seen corresponding path program 1 times [2020-08-18 12:13:28,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:28,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100369692] [2020-08-18 12:13:28,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:28,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 12:13:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-18 12:13:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 193 proven. 194 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-18 12:13:28,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100369692] [2020-08-18 12:13:28,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:28,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 12:13:28,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565801710] [2020-08-18 12:13:28,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:13:28,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:28,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:13:28,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:13:28,818 INFO L87 Difference]: Start difference. First operand 1890 states and 2517 transitions. Second operand 9 states. [2020-08-18 12:13:31,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:31,183 INFO L93 Difference]: Finished difference Result 3677 states and 4968 transitions. [2020-08-18 12:13:31,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 12:13:31,184 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 303 [2020-08-18 12:13:31,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:31,193 INFO L225 Difference]: With dead ends: 3677 [2020-08-18 12:13:31,193 INFO L226 Difference]: Without dead ends: 1930 [2020-08-18 12:13:31,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-18 12:13:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2020-08-18 12:13:31,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1882. [2020-08-18 12:13:31,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-08-18 12:13:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2280 transitions. [2020-08-18 12:13:31,248 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2280 transitions. Word has length 303 [2020-08-18 12:13:31,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:31,248 INFO L479 AbstractCegarLoop]: Abstraction has 1882 states and 2280 transitions. [2020-08-18 12:13:31,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:13:31,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2280 transitions. [2020-08-18 12:13:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-08-18 12:13:31,257 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:31,258 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:31,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 12:13:31,258 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:31,259 INFO L82 PathProgramCache]: Analyzing trace with hash -48667167, now seen corresponding path program 1 times [2020-08-18 12:13:31,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:31,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746182521] [2020-08-18 12:13:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:31,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:31,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:31,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:31,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:31,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-18 12:13:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 438 proven. 11 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-08-18 12:13:31,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746182521] [2020-08-18 12:13:31,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:31,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 12:13:31,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617166578] [2020-08-18 12:13:31,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:13:31,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:31,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:13:31,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:13:31,772 INFO L87 Difference]: Start difference. First operand 1882 states and 2280 transitions. Second operand 9 states. [2020-08-18 12:13:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:36,378 INFO L93 Difference]: Finished difference Result 5238 states and 6410 transitions. [2020-08-18 12:13:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-18 12:13:36,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 438 [2020-08-18 12:13:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:36,397 INFO L225 Difference]: With dead ends: 5238 [2020-08-18 12:13:36,397 INFO L226 Difference]: Without dead ends: 3356 [2020-08-18 12:13:36,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-08-18 12:13:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2020-08-18 12:13:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 2438. [2020-08-18 12:13:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-08-18 12:13:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 2779 transitions. [2020-08-18 12:13:36,466 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 2779 transitions. Word has length 438 [2020-08-18 12:13:36,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:36,467 INFO L479 AbstractCegarLoop]: Abstraction has 2438 states and 2779 transitions. [2020-08-18 12:13:36,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:13:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 2779 transitions. [2020-08-18 12:13:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-08-18 12:13:36,482 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:36,482 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:36,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 12:13:36,482 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:36,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:36,483 INFO L82 PathProgramCache]: Analyzing trace with hash -347726080, now seen corresponding path program 1 times [2020-08-18 12:13:36,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:36,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831372481] [2020-08-18 12:13:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:36,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:36,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:36,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:36,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-18 12:13:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-18 12:13:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 668 proven. 209 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-08-18 12:13:37,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831372481] [2020-08-18 12:13:37,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:37,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 12:13:37,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978030867] [2020-08-18 12:13:37,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 12:13:37,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:37,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 12:13:37,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-18 12:13:37,611 INFO L87 Difference]: Start difference. First operand 2438 states and 2779 transitions. Second operand 10 states. [2020-08-18 12:13:40,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:40,427 INFO L93 Difference]: Finished difference Result 5701 states and 6650 transitions. [2020-08-18 12:13:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-18 12:13:40,427 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 558 [2020-08-18 12:13:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:40,442 INFO L225 Difference]: With dead ends: 5701 [2020-08-18 12:13:40,442 INFO L226 Difference]: Without dead ends: 3400 [2020-08-18 12:13:40,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-08-18 12:13:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-08-18 12:13:40,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3174. [2020-08-18 12:13:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2020-08-18 12:13:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3495 transitions. [2020-08-18 12:13:40,527 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3495 transitions. Word has length 558 [2020-08-18 12:13:40,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:40,528 INFO L479 AbstractCegarLoop]: Abstraction has 3174 states and 3495 transitions. [2020-08-18 12:13:40,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 12:13:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3495 transitions. [2020-08-18 12:13:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-08-18 12:13:40,536 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:40,537 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:40,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 12:13:40,538 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:40,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:40,539 INFO L82 PathProgramCache]: Analyzing trace with hash -229639858, now seen corresponding path program 1 times [2020-08-18 12:13:40,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:40,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897883868] [2020-08-18 12:13:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:40,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:40,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-08-18 12:13:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:42,187 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 439 proven. 136 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-08-18 12:13:42,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897883868] [2020-08-18 12:13:42,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:42,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 12:13:42,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197837458] [2020-08-18 12:13:42,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 12:13:42,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:42,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 12:13:42,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 12:13:42,192 INFO L87 Difference]: Start difference. First operand 3174 states and 3495 transitions. Second operand 10 states. [2020-08-18 12:13:42,852 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-08-18 12:13:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:45,151 INFO L93 Difference]: Finished difference Result 5994 states and 6643 transitions. [2020-08-18 12:13:45,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 12:13:45,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 591 [2020-08-18 12:13:45,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:45,166 INFO L225 Difference]: With dead ends: 5994 [2020-08-18 12:13:45,166 INFO L226 Difference]: Without dead ends: 3192 [2020-08-18 12:13:45,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-08-18 12:13:45,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-08-18 12:13:45,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3178. [2020-08-18 12:13:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-18 12:13:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3486 transitions. [2020-08-18 12:13:45,240 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3486 transitions. Word has length 591 [2020-08-18 12:13:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:45,241 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3486 transitions. [2020-08-18 12:13:45,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 12:13:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3486 transitions. [2020-08-18 12:13:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-08-18 12:13:45,249 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:45,250 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:45,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 12:13:45,250 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:45,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:45,251 INFO L82 PathProgramCache]: Analyzing trace with hash -278736799, now seen corresponding path program 2 times [2020-08-18 12:13:45,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:45,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5921308] [2020-08-18 12:13:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:45,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:45,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:45,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:45,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:45,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-18 12:13:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:45,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-08-18 12:13:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 609 proven. 140 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2020-08-18 12:13:46,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5921308] [2020-08-18 12:13:46,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:46,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 12:13:46,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830745514] [2020-08-18 12:13:46,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:13:46,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:46,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:13:46,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:13:46,266 INFO L87 Difference]: Start difference. First operand 3178 states and 3486 transitions. Second operand 9 states. [2020-08-18 12:13:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:48,486 INFO L93 Difference]: Finished difference Result 6354 states and 6982 transitions. [2020-08-18 12:13:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 12:13:48,487 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 701 [2020-08-18 12:13:48,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:48,501 INFO L225 Difference]: With dead ends: 6354 [2020-08-18 12:13:48,501 INFO L226 Difference]: Without dead ends: 3364 [2020-08-18 12:13:48,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-08-18 12:13:48,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2020-08-18 12:13:48,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3178. [2020-08-18 12:13:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-18 12:13:48,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3484 transitions. [2020-08-18 12:13:48,583 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3484 transitions. Word has length 701 [2020-08-18 12:13:48,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:48,584 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3484 transitions. [2020-08-18 12:13:48,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:13:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3484 transitions. [2020-08-18 12:13:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2020-08-18 12:13:48,592 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:48,596 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:48,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 12:13:48,596 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:48,597 INFO L82 PathProgramCache]: Analyzing trace with hash -638310518, now seen corresponding path program 1 times [2020-08-18 12:13:48,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:48,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128045653] [2020-08-18 12:13:48,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:48,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:48,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:48,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:49,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 12:13:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:49,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2020-08-18 12:13:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 616 proven. 140 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2020-08-18 12:13:50,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128045653] [2020-08-18 12:13:50,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:50,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 12:13:50,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098520585] [2020-08-18 12:13:50,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 12:13:50,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:50,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 12:13:50,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 12:13:50,179 INFO L87 Difference]: Start difference. First operand 3178 states and 3484 transitions. Second operand 10 states. [2020-08-18 12:13:51,793 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-08-18 12:13:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:53,404 INFO L93 Difference]: Finished difference Result 6540 states and 7200 transitions. [2020-08-18 12:13:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 12:13:53,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 708 [2020-08-18 12:13:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:53,428 INFO L225 Difference]: With dead ends: 6540 [2020-08-18 12:13:53,428 INFO L226 Difference]: Without dead ends: 3552 [2020-08-18 12:13:53,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-18 12:13:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2020-08-18 12:13:53,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3548. [2020-08-18 12:13:53,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2020-08-18 12:13:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 3869 transitions. [2020-08-18 12:13:53,513 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 3869 transitions. Word has length 708 [2020-08-18 12:13:53,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:53,514 INFO L479 AbstractCegarLoop]: Abstraction has 3548 states and 3869 transitions. [2020-08-18 12:13:53,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 12:13:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 3869 transitions. [2020-08-18 12:13:53,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2020-08-18 12:13:53,522 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:53,523 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:53,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 12:13:53,523 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:53,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1537329314, now seen corresponding path program 1 times [2020-08-18 12:13:53,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:53,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310353390] [2020-08-18 12:13:53,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:53,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:53,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:53,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:53,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 12:13:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:53,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 12:13:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 763 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-08-18 12:13:54,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310353390] [2020-08-18 12:13:54,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:54,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 12:13:54,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603822325] [2020-08-18 12:13:54,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:13:54,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:54,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:13:54,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:13:54,365 INFO L87 Difference]: Start difference. First operand 3548 states and 3869 transitions. Second operand 7 states. [2020-08-18 12:13:55,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:55,729 INFO L93 Difference]: Finished difference Result 8032 states and 8890 transitions. [2020-08-18 12:13:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 12:13:55,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 734 [2020-08-18 12:13:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:55,758 INFO L225 Difference]: With dead ends: 8032 [2020-08-18 12:13:55,758 INFO L226 Difference]: Without dead ends: 4674 [2020-08-18 12:13:55,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-18 12:13:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-08-18 12:13:55,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4292. [2020-08-18 12:13:55,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 12:13:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4750 transitions. [2020-08-18 12:13:55,851 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4750 transitions. Word has length 734 [2020-08-18 12:13:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:55,853 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4750 transitions. [2020-08-18 12:13:55,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:13:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4750 transitions. [2020-08-18 12:13:55,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2020-08-18 12:13:55,863 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:55,864 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:55,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 12:13:55,865 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:55,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:55,865 INFO L82 PathProgramCache]: Analyzing trace with hash -583849898, now seen corresponding path program 1 times [2020-08-18 12:13:55,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:55,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756917486] [2020-08-18 12:13:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 12:13:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-18 12:13:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2020-08-18 12:13:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:56,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 327 proven. 6 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2020-08-18 12:13:56,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756917486] [2020-08-18 12:13:56,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:56,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 12:13:56,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484027914] [2020-08-18 12:13:56,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 12:13:56,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:56,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 12:13:56,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:13:56,653 INFO L87 Difference]: Start difference. First operand 4292 states and 4750 transitions. Second operand 5 states. [2020-08-18 12:13:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:57,745 INFO L93 Difference]: Finished difference Result 4296 states and 4753 transitions. [2020-08-18 12:13:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 12:13:57,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 789 [2020-08-18 12:13:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:57,759 INFO L225 Difference]: With dead ends: 4296 [2020-08-18 12:13:57,759 INFO L226 Difference]: Without dead ends: 4294 [2020-08-18 12:13:57,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 12:13:57,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-08-18 12:13:57,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4292. [2020-08-18 12:13:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-18 12:13:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4747 transitions. [2020-08-18 12:13:57,831 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4747 transitions. Word has length 789 [2020-08-18 12:13:57,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:57,832 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4747 transitions. [2020-08-18 12:13:57,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 12:13:57,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4747 transitions. [2020-08-18 12:13:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2020-08-18 12:13:57,845 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:57,846 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:57,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 12:13:57,847 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:57,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:57,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1874704500, now seen corresponding path program 1 times [2020-08-18 12:13:57,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:57,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860221618] [2020-08-18 12:13:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:13:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:13:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:13:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:13:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:13:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 12:13:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 12:13:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-18 12:13:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-18 12:13:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:13:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 382 proven. 7 refuted. 0 times theorem prover too weak. 1997 trivial. 0 not checked. [2020-08-18 12:13:58,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860221618] [2020-08-18 12:13:58,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:13:58,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 12:13:58,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280715505] [2020-08-18 12:13:58,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 12:13:58,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:13:58,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 12:13:58,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:13:58,623 INFO L87 Difference]: Start difference. First operand 4292 states and 4747 transitions. Second operand 5 states. [2020-08-18 12:13:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:13:59,765 INFO L93 Difference]: Finished difference Result 9128 states and 10168 transitions. [2020-08-18 12:13:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 12:13:59,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 834 [2020-08-18 12:13:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:13:59,779 INFO L225 Difference]: With dead ends: 9128 [2020-08-18 12:13:59,780 INFO L226 Difference]: Without dead ends: 5026 [2020-08-18 12:13:59,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 12:13:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2020-08-18 12:13:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 3918. [2020-08-18 12:13:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3918 states. [2020-08-18 12:13:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 4287 transitions. [2020-08-18 12:13:59,864 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 4287 transitions. Word has length 834 [2020-08-18 12:13:59,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:13:59,865 INFO L479 AbstractCegarLoop]: Abstraction has 3918 states and 4287 transitions. [2020-08-18 12:13:59,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 12:13:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 4287 transitions. [2020-08-18 12:13:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2020-08-18 12:13:59,877 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:13:59,878 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:13:59,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-18 12:13:59,878 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:13:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:13:59,880 INFO L82 PathProgramCache]: Analyzing trace with hash -177347705, now seen corresponding path program 1 times [2020-08-18 12:13:59,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:13:59,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461481355] [2020-08-18 12:13:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:14:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:14:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:14:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 12:14:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 12:14:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-18 12:14:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-18 12:14:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-18 12:14:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-18 12:14:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:14:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 379 proven. 28 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2020-08-18 12:14:00,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461481355] [2020-08-18 12:14:00,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:14:00,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 12:14:00,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373472789] [2020-08-18 12:14:00,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 12:14:00,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:14:00,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 12:14:00,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 12:14:00,721 INFO L87 Difference]: Start difference. First operand 3918 states and 4287 transitions. Second operand 8 states. [2020-08-18 12:14:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:14:03,502 INFO L93 Difference]: Finished difference Result 5032 states and 5532 transitions. [2020-08-18 12:14:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 12:14:03,503 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 845 [2020-08-18 12:14:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:14:03,504 INFO L225 Difference]: With dead ends: 5032 [2020-08-18 12:14:03,505 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 12:14:03,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-08-18 12:14:03,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 12:14:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 12:14:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 12:14:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 12:14:03,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 845 [2020-08-18 12:14:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:14:03,513 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 12:14:03,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 12:14:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 12:14:03,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 12:14:03,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-18 12:14:03,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 12:14:04,067 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 177 [2020-08-18 12:14:04,259 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 177 [2020-08-18 12:14:05,709 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 250 DAG size of output: 61 [2020-08-18 12:14:06,648 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 55 [2020-08-18 12:14:07,606 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 55 [2020-08-18 12:14:07,611 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 12:14:07,612 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-08-18 12:14:07,612 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 12:14:07,612 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-08-18 12:14:07,612 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-08-18 12:14:07,612 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,613 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,613 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,613 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-08-18 12:14:07,613 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 12:14:07,613 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 12:14:07,613 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,614 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-08-18 12:14:07,615 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-08-18 12:14:07,616 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-08-18 12:14:07,632 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-08-18 12:14:07,632 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-08-18 12:14:07,632 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,632 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,632 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,632 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,633 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-08-18 12:14:07,634 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-08-18 12:14:07,635 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,636 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 12:14:07,637 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse3 (= ~a15~0 |old(~a15~0)|)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse16 (= ~a24~0 1)) (.cse2 (= ~a12~0 |old(~a12~0)|)) (.cse8 (= 8 |old(~a15~0)|))) (let ((.cse10 (not (<= |old(~a15~0)| 8))) (.cse11 (not (<= 7 |old(~a21~0)|))) (.cse7 (= 8 |old(~a21~0)|)) (.cse5 (not (<= |old(~a15~0)| 6))) (.cse14 (not (<= |old(~a12~0)| 2))) (.cse12 (not .cse8)) (.cse13 (and .cse1 (= ~a15~0 8) .cse16 .cse2)) (.cse0 (= 5 |old(~a21~0)|)) (.cse4 (not (= |old(~a24~0)| 1))) (.cse15 (not (= 9 |old(~a15~0)|))) (.cse9 (and .cse1 .cse16 .cse2 .cse3)) (.cse6 (not (<= 12 |old(~a12~0)|)))) (and (or .cse0 (and (= ~a24~0 |old(~a24~0)|) .cse1 .cse2 .cse3) (and (or .cse4 .cse5 .cse6) (or .cse7 .cse5))) (or .cse8 .cse4 .cse9 .cse10 .cse11 (not (<= 7 |old(~a15~0)|))) (or .cse4 .cse12 .cse11 .cse13 .cse14) (or .cse0 .cse7 .cse8 .cse4 .cse9 .cse10) (or .cse4 .cse15 .cse9 .cse11) (or .cse7 .cse4 .cse5 .cse9 .cse14) (or .cse0 .cse4 .cse12 .cse6 .cse13) (or .cse0 .cse4 .cse15 .cse9 .cse6)))) [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 12:14:07,638 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-08-18 12:14:07,639 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,640 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-08-18 12:14:07,641 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-08-18 12:14:07,642 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-08-18 12:14:07,643 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 166) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 12:14:07,644 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-08-18 12:14:07,645 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-08-18 12:14:07,646 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-08-18 12:14:07,647 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 12:14:07,648 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-08-18 12:14:07,649 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,650 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 12:14:07,651 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-08-18 12:14:07,652 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 12:14:07,653 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 12:14:07,653 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 12:14:07,653 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-08-18 12:14:07,653 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 12:14:07,653 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-08-18 12:14:07,653 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 12:14:07,653 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 12:14:07,653 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-08-18 12:14:07,653 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-08-18 12:14:07,654 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= 7 ~a21~0)) (.cse2 (= ~a15~0 9)) (.cse5 (not (= ~a15~0 8))) (.cse8 (<= 12 ~a12~0)) (.cse6 (<= ~a15~0 8)) (.cse3 (<= ~a12~0 2)) (.cse1 (= ~a24~0 1)) (.cse7 (not (= 5 ~a21~0))) (.cse4 (= 8 |old(~a15~0)|)) (.cse9 (not (= ~a21~0 8))) (.cse10 (<= ~a15~0 6))) (or (not (= 7 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 .cse3 .cse1 (= ~a15~0 |old(~a15~0)|)) (not .cse4) (and .cse0 .cse5 (<= 7 ~a15~0) .cse1 .cse6) (and .cse7 .cse8 .cse1 .cse2) (and .cse7 (or (and .cse5 .cse1 .cse6 .cse9) (and .cse8 .cse1 .cse6))) (and .cse4 .cse3 .cse1 .cse9 .cse10) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse4 .cse9 .cse10))) [2020-08-18 12:14:07,654 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-08-18 12:14:07,654 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-18 12:14:07,654 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= 7 ~a21~0)) (.cse2 (= ~a15~0 9)) (.cse5 (not (= ~a15~0 8))) (.cse8 (<= 12 ~a12~0)) (.cse6 (<= ~a15~0 8)) (.cse3 (<= ~a12~0 2)) (.cse1 (= ~a24~0 1)) (.cse7 (not (= 5 ~a21~0))) (.cse4 (= 8 |old(~a15~0)|)) (.cse9 (not (= ~a21~0 8))) (.cse10 (<= ~a15~0 6))) (or (not (= 7 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 .cse3 .cse1 (= ~a15~0 |old(~a15~0)|)) (not .cse4) (and .cse0 .cse5 (<= 7 ~a15~0) .cse1 .cse6) (and .cse7 .cse8 .cse1 .cse2) (and .cse7 (or (and .cse5 .cse1 .cse6 .cse9) (and .cse8 .cse1 .cse6))) (and .cse4 .cse3 .cse1 .cse9 .cse10) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse4 .cse9 .cse10))) [2020-08-18 12:14:07,654 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-08-18 12:14:07,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 12:14:07 BoogieIcfgContainer [2020-08-18 12:14:07,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 12:14:07,679 INFO L168 Benchmark]: Toolchain (without parser) took 52514.01 ms. Allocated memory was 147.3 MB in the beginning and 1.1 GB in the end (delta: 924.3 MB). Free memory was 102.0 MB in the beginning and 1.0 GB in the end (delta: -910.0 MB). Peak memory consumption was 883.9 MB. Max. memory is 7.1 GB. [2020-08-18 12:14:07,680 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 12:14:07,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.96 ms. Allocated memory was 147.3 MB in the beginning and 206.6 MB in the end (delta: 59.2 MB). Free memory was 101.7 MB in the beginning and 169.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-08-18 12:14:07,681 INFO L168 Benchmark]: Boogie Preprocessor took 141.06 ms. Allocated memory is still 206.6 MB. Free memory was 169.4 MB in the beginning and 163.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2020-08-18 12:14:07,682 INFO L168 Benchmark]: RCFGBuilder took 1734.97 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 163.1 MB in the beginning and 154.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-08-18 12:14:07,682 INFO L168 Benchmark]: TraceAbstraction took 49760.70 ms. Allocated memory was 238.0 MB in the beginning and 1.1 GB in the end (delta: 833.6 MB). Free memory was 154.4 MB in the beginning and 1.0 GB in the end (delta: -857.6 MB). Peak memory consumption was 845.6 MB. Max. memory is 7.1 GB. [2020-08-18 12:14:07,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 869.96 ms. Allocated memory was 147.3 MB in the beginning and 206.6 MB in the end (delta: 59.2 MB). Free memory was 101.7 MB in the beginning and 169.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.06 ms. Allocated memory is still 206.6 MB. Free memory was 169.4 MB in the beginning and 163.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1734.97 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 163.1 MB in the beginning and 154.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49760.70 ms. Allocated memory was 238.0 MB in the beginning and 1.1 GB in the end (delta: 833.6 MB). Free memory was 154.4 MB in the beginning and 1.0 GB in the end (delta: -857.6 MB). Peak memory consumption was 845.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((!(7 == \old(a21)) || ((7 <= a21 && a24 == 1) && a15 == 9)) || !(\old(a24) == 1)) || (((7 <= a21 && a12 <= 2) && a24 == 1) && a15 == \old(a15))) || !(8 == \old(a15))) || ((((7 <= a21 && !(a15 == 8)) && 7 <= a15) && a24 == 1) && a15 <= 8)) || (((!(5 == a21) && 12 <= a12) && a24 == 1) && a15 == 9)) || (!(5 == a21) && ((((!(a15 == 8) && a24 == 1) && a15 <= 8) && !(a21 == 8)) || ((12 <= a12 && a24 == 1) && a15 <= 8)))) || ((((8 == \old(a15) && a12 <= 2) && a24 == 1) && !(a21 == 8)) && a15 <= 6)) || !(\old(a12) + 49 <= 0)) || (((!(5 == a21) && 8 == \old(a15)) && !(a21 == 8)) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 45.5s, OverallIterations: 14, TraceHistogramMax: 8, AutomataDifference: 33.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 389 SDtfs, 14124 SDslu, 546 SDs, 0 SdLazy, 18951 SolverSat, 3301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4292occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 2956 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 171 PreInvPairs, 235 NumberOfFragments, 602 HoareAnnotationTreeSize, 171 FomulaSimplifications, 71391 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 20632 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 7134 NumberOfCodeBlocks, 7134 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7120 ConstructedInterpolants, 0 QuantifiedInterpolants, 11497809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 13401/14345 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...