/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:17:37,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:17:37,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:17:37,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:17:37,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:17:37,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:17:37,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:17:37,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:17:37,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:17:37,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:17:37,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:17:37,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:17:37,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:17:37,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:17:37,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:17:37,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:17:37,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:17:37,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:17:37,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:17:37,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:17:37,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:17:37,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:17:37,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:17:37,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:17:37,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-21 10:17:37,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:17:37,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:17:37,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:17:37,345 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 [2020-09-21 10:17:37,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:17:37,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:17:37,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:17:37,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:17:37,397 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:17:37,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:17:37,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:17:37,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:17:37,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:17:37,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:17:37,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:17:37,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:17:37,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:17:37,399 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:17:37,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:17:37,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:17:37,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:17:37,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:17:37,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:17:37,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:17:37,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:17:37,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:17:37,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:17:37,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:17:37,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:17:37,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:17:37,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:17:37,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:17:37,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:17:37,403 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 -> false [2020-09-21 10:17:37,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:17:37,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:17:37,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:17:37,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:17:37,951 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:17:37,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-21 10:17:38,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ebffd4b9/bffd75bf48f6480caf57bfcfadcba0e2/FLAG3f4d8a6a4 [2020-09-21 10:17:38,528 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:17:38,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-21 10:17:38,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ebffd4b9/bffd75bf48f6480caf57bfcfadcba0e2/FLAG3f4d8a6a4 [2020-09-21 10:17:38,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ebffd4b9/bffd75bf48f6480caf57bfcfadcba0e2 [2020-09-21 10:17:38,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:17:38,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:17:38,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:17:38,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:17:38,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:17:38,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:17:38" (1/1) ... [2020-09-21 10:17:38,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554bc22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:38, skipping insertion in model container [2020-09-21 10:17:38,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:17:38" (1/1) ... [2020-09-21 10:17:38,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:17:38,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:17:39,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:17:39,202 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:17:39,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:17:39,249 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:17:39,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39 WrapperNode [2020-09-21 10:17:39,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:17:39,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:17:39,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:17:39,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:17:39,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (1/1) ... [2020-09-21 10:17:39,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:17:39,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:17:39,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:17:39,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:17:39,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (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 [2020-09-21 10:17:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:17:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:17:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-21 10:17:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2020-09-21 10:17:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:17:39,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:17:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:17:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-21 10:17:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2020-09-21 10:17:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:17:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:17:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:17:39,727 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:17:39,728 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 10:17:39,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:17:39 BoogieIcfgContainer [2020-09-21 10:17:39,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:17:39,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:17:39,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:17:39,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:17:39,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:17:38" (1/3) ... [2020-09-21 10:17:39,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419877d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:17:39, skipping insertion in model container [2020-09-21 10:17:39,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:17:39" (2/3) ... [2020-09-21 10:17:39,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419877d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:17:39, skipping insertion in model container [2020-09-21 10:17:39,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:17:39" (3/3) ... [2020-09-21 10:17:39,742 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2020-09-21 10:17:39,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:17:39,765 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:17:39,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:17:39,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:17:39,834 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:17:39,834 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:17:39,834 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:17:39,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:17:39,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:17:39,835 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:17:39,835 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:17:39,866 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-09-21 10:17:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 10:17:39,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:39,878 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] [2020-09-21 10:17:39,879 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:39,887 INFO L82 PathProgramCache]: Analyzing trace with hash -629617454, now seen corresponding path program 1 times [2020-09-21 10:17:39,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:39,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101645500] [2020-09-21 10:17:39,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:17:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:17:40,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101645500] [2020-09-21 10:17:40,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:17:40,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 10:17:40,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584463844] [2020-09-21 10:17:40,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 10:17:40,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:40,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 10:17:40,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:17:40,222 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-09-21 10:17:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:40,414 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-09-21 10:17:40,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 10:17:40,416 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-09-21 10:17:40,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:40,431 INFO L225 Difference]: With dead ends: 48 [2020-09-21 10:17:40,431 INFO L226 Difference]: Without dead ends: 27 [2020-09-21 10:17:40,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:17:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-21 10:17:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-21 10:17:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-21 10:17:40,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-09-21 10:17:40,501 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 20 [2020-09-21 10:17:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:40,502 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-09-21 10:17:40,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 10:17:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-09-21 10:17:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 10:17:40,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:40,506 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:40,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:17:40,507 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:40,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:40,507 INFO L82 PathProgramCache]: Analyzing trace with hash 223523063, now seen corresponding path program 1 times [2020-09-21 10:17:40,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:40,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510023369] [2020-09-21 10:17:40,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 10:17:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 10:17:40,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510023369] [2020-09-21 10:17:40,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:40,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:17:40,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239905000] [2020-09-21 10:17:40,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:17:40,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:40,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:17:40,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:17:40,921 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 10 states. [2020-09-21 10:17:41,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:41,408 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2020-09-21 10:17:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:17:41,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-09-21 10:17:41,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:41,412 INFO L225 Difference]: With dead ends: 61 [2020-09-21 10:17:41,412 INFO L226 Difference]: Without dead ends: 55 [2020-09-21 10:17:41,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-09-21 10:17:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-21 10:17:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-09-21 10:17:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-21 10:17:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2020-09-21 10:17:41,433 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 30 [2020-09-21 10:17:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:41,434 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2020-09-21 10:17:41,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:17:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2020-09-21 10:17:41,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 10:17:41,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:41,437 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:41,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:17:41,438 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:41,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:41,438 INFO L82 PathProgramCache]: Analyzing trace with hash 640231516, now seen corresponding path program 2 times [2020-09-21 10:17:41,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:41,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567283702] [2020-09-21 10:17:41,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:17:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 10:17:41,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567283702] [2020-09-21 10:17:41,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:41,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:17:41,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357335706] [2020-09-21 10:17:41,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:17:41,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:41,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:17:41,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:17:41,619 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 7 states. [2020-09-21 10:17:41,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:41,795 INFO L93 Difference]: Finished difference Result 77 states and 111 transitions. [2020-09-21 10:17:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:17:41,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-21 10:17:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:41,801 INFO L225 Difference]: With dead ends: 77 [2020-09-21 10:17:41,801 INFO L226 Difference]: Without dead ends: 55 [2020-09-21 10:17:41,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:17:41,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-21 10:17:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-09-21 10:17:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 10:17:41,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2020-09-21 10:17:41,837 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 40 [2020-09-21 10:17:41,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:41,837 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2020-09-21 10:17:41,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:17:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2020-09-21 10:17:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-21 10:17:41,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:41,841 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-21 10:17:41,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:17:41,842 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:41,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1772916587, now seen corresponding path program 1 times [2020-09-21 10:17:41,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:41,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352122401] [2020-09-21 10:17:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:41,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 10:17:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 10:17:42,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352122401] [2020-09-21 10:17:42,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:42,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:17:42,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387203301] [2020-09-21 10:17:42,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:17:42,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:42,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:17:42,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:17:42,087 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand 10 states. [2020-09-21 10:17:42,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:42,356 INFO L93 Difference]: Finished difference Result 66 states and 83 transitions. [2020-09-21 10:17:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 10:17:42,356 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-09-21 10:17:42,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:42,359 INFO L225 Difference]: With dead ends: 66 [2020-09-21 10:17:42,359 INFO L226 Difference]: Without dead ends: 46 [2020-09-21 10:17:42,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:17:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-21 10:17:42,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-09-21 10:17:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 10:17:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-09-21 10:17:42,373 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 36 [2020-09-21 10:17:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:42,374 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-09-21 10:17:42,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:17:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-09-21 10:17:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 10:17:42,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:42,376 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:42,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:17:42,377 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:42,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1240446734, now seen corresponding path program 3 times [2020-09-21 10:17:42,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:42,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027785522] [2020-09-21 10:17:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:17:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 10:17:42,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027785522] [2020-09-21 10:17:42,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:42,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:17:42,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343905907] [2020-09-21 10:17:42,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:17:42,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:42,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:17:42,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:17:42,601 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 10 states. [2020-09-21 10:17:42,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:42,930 INFO L93 Difference]: Finished difference Result 71 states and 104 transitions. [2020-09-21 10:17:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 10:17:42,932 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-09-21 10:17:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:42,934 INFO L225 Difference]: With dead ends: 71 [2020-09-21 10:17:42,934 INFO L226 Difference]: Without dead ends: 42 [2020-09-21 10:17:42,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:17:42,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-21 10:17:42,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-09-21 10:17:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 10:17:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-09-21 10:17:42,954 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 40 [2020-09-21 10:17:42,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:42,956 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-09-21 10:17:42,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:17:42,956 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-09-21 10:17:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-21 10:17:42,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:42,960 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:42,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:17:42,960 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:42,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:42,960 INFO L82 PathProgramCache]: Analyzing trace with hash -979408629, now seen corresponding path program 2 times [2020-09-21 10:17:42,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:42,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360555064] [2020-09-21 10:17:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 10:17:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-09-21 10:17:43,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360555064] [2020-09-21 10:17:43,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:43,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 10:17:43,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144351714] [2020-09-21 10:17:43,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 10:17:43,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:43,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 10:17:43,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:17:43,319 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 13 states. [2020-09-21 10:17:43,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:43,755 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2020-09-21 10:17:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 10:17:43,756 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-09-21 10:17:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:43,758 INFO L225 Difference]: With dead ends: 65 [2020-09-21 10:17:43,759 INFO L226 Difference]: Without dead ends: 61 [2020-09-21 10:17:43,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2020-09-21 10:17:43,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-21 10:17:43,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2020-09-21 10:17:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 10:17:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-21 10:17:43,773 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 56 [2020-09-21 10:17:43,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:43,773 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-21 10:17:43,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 10:17:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-21 10:17:43,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-21 10:17:43,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:43,776 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 6, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:43,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:17:43,776 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:43,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:43,777 INFO L82 PathProgramCache]: Analyzing trace with hash -83361749, now seen corresponding path program 3 times [2020-09-21 10:17:43,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:43,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798719417] [2020-09-21 10:17:43,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:17:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:43,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 54 proven. 80 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-21 10:17:44,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798719417] [2020-09-21 10:17:44,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:44,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 10:17:44,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357670411] [2020-09-21 10:17:44,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 10:17:44,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:44,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 10:17:44,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 10:17:44,008 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 9 states. [2020-09-21 10:17:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:44,343 INFO L93 Difference]: Finished difference Result 95 states and 138 transitions. [2020-09-21 10:17:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 10:17:44,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-09-21 10:17:44,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:44,351 INFO L225 Difference]: With dead ends: 95 [2020-09-21 10:17:44,352 INFO L226 Difference]: Without dead ends: 64 [2020-09-21 10:17:44,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-09-21 10:17:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-21 10:17:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2020-09-21 10:17:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-21 10:17:44,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-09-21 10:17:44,383 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 76 [2020-09-21 10:17:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:44,384 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-09-21 10:17:44,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 10:17:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-09-21 10:17:44,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-21 10:17:44,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:44,387 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:44,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 10:17:44,388 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:44,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1033208535, now seen corresponding path program 4 times [2020-09-21 10:17:44,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:44,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999035961] [2020-09-21 10:17:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 10:17:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:44,656 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-21 10:17:44,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999035961] [2020-09-21 10:17:44,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:44,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 10:17:44,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632474187] [2020-09-21 10:17:44,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:17:44,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:44,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:17:44,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:17:44,659 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand 12 states. [2020-09-21 10:17:44,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:44,973 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2020-09-21 10:17:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 10:17:44,973 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2020-09-21 10:17:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:44,976 INFO L225 Difference]: With dead ends: 71 [2020-09-21 10:17:44,976 INFO L226 Difference]: Without dead ends: 55 [2020-09-21 10:17:44,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2020-09-21 10:17:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-21 10:17:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-09-21 10:17:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 10:17:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 67 transitions. [2020-09-21 10:17:44,990 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 67 transitions. Word has length 62 [2020-09-21 10:17:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:44,991 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 67 transitions. [2020-09-21 10:17:44,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:17:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 67 transitions. [2020-09-21 10:17:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-21 10:17:44,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:44,993 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 6, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:44,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 10:17:44,995 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:44,995 INFO L82 PathProgramCache]: Analyzing trace with hash 622260971, now seen corresponding path program 5 times [2020-09-21 10:17:44,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:44,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55559147] [2020-09-21 10:17:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:17:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 70 proven. 64 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-21 10:17:45,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55559147] [2020-09-21 10:17:45,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:45,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 10:17:45,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558031543] [2020-09-21 10:17:45,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 10:17:45,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:45,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 10:17:45,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 10:17:45,280 INFO L87 Difference]: Start difference. First operand 51 states and 67 transitions. Second operand 9 states. [2020-09-21 10:17:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:45,629 INFO L93 Difference]: Finished difference Result 96 states and 140 transitions. [2020-09-21 10:17:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 10:17:45,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-09-21 10:17:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:45,631 INFO L225 Difference]: With dead ends: 96 [2020-09-21 10:17:45,632 INFO L226 Difference]: Without dead ends: 56 [2020-09-21 10:17:45,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2020-09-21 10:17:45,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-21 10:17:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2020-09-21 10:17:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-21 10:17:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2020-09-21 10:17:45,651 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 76 [2020-09-21 10:17:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:45,652 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2020-09-21 10:17:45,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 10:17:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2020-09-21 10:17:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-21 10:17:45,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:45,657 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:45,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 10:17:45,657 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:45,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:45,657 INFO L82 PathProgramCache]: Analyzing trace with hash -633873909, now seen corresponding path program 6 times [2020-09-21 10:17:45,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:45,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814969170] [2020-09-21 10:17:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:17:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 131 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-09-21 10:17:45,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814969170] [2020-09-21 10:17:45,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:45,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 10:17:45,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344035287] [2020-09-21 10:17:45,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:17:45,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:45,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:17:45,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:17:45,990 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand 12 states. [2020-09-21 10:17:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:46,373 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-09-21 10:17:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 10:17:46,374 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-09-21 10:17:46,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:46,379 INFO L225 Difference]: With dead ends: 58 [2020-09-21 10:17:46,379 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 10:17:46,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2020-09-21 10:17:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 10:17:46,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2020-09-21 10:17:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 10:17:46,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2020-09-21 10:17:46,397 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 96 [2020-09-21 10:17:46,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:46,398 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2020-09-21 10:17:46,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:17:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2020-09-21 10:17:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-21 10:17:46,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:46,400 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:46,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 10:17:46,400 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:46,401 INFO L82 PathProgramCache]: Analyzing trace with hash 542454743, now seen corresponding path program 7 times [2020-09-21 10:17:46,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:46,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710311501] [2020-09-21 10:17:46,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:46,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:17:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,125 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-09-21 10:17:47,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710311501] [2020-09-21 10:17:47,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:47,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 10:17:47,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151738114] [2020-09-21 10:17:47,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 10:17:47,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:47,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 10:17:47,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-09-21 10:17:47,128 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand 17 states. [2020-09-21 10:17:47,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:47,716 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2020-09-21 10:17:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 10:17:47,717 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2020-09-21 10:17:47,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:47,719 INFO L225 Difference]: With dead ends: 80 [2020-09-21 10:17:47,720 INFO L226 Difference]: Without dead ends: 76 [2020-09-21 10:17:47,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2020-09-21 10:17:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-21 10:17:47,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 69. [2020-09-21 10:17:47,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-21 10:17:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2020-09-21 10:17:47,732 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 102 [2020-09-21 10:17:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:47,733 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2020-09-21 10:17:47,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 10:17:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-09-21 10:17:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-21 10:17:47,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:47,735 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 12, 11, 11, 11, 11, 11, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:47,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 10:17:47,736 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:47,736 INFO L82 PathProgramCache]: Analyzing trace with hash 589762519, now seen corresponding path program 8 times [2020-09-21 10:17:47,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:47,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445131055] [2020-09-21 10:17:47,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 10:17:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 167 proven. 314 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2020-09-21 10:17:48,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445131055] [2020-09-21 10:17:48,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:48,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 10:17:48,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235784531] [2020-09-21 10:17:48,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 10:17:48,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:48,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 10:17:48,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-21 10:17:48,186 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand 11 states. [2020-09-21 10:17:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:48,681 INFO L93 Difference]: Finished difference Result 125 states and 188 transitions. [2020-09-21 10:17:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:17:48,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2020-09-21 10:17:48,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:48,683 INFO L225 Difference]: With dead ends: 125 [2020-09-21 10:17:48,683 INFO L226 Difference]: Without dead ends: 82 [2020-09-21 10:17:48,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2020-09-21 10:17:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-21 10:17:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2020-09-21 10:17:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 10:17:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2020-09-21 10:17:48,694 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 142 [2020-09-21 10:17:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:48,694 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2020-09-21 10:17:48,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 10:17:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2020-09-21 10:17:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 10:17:48,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:48,696 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:48,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 10:17:48,697 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:48,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:48,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1145252683, now seen corresponding path program 9 times [2020-09-21 10:17:48,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:48,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529119410] [2020-09-21 10:17:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:17:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:48,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 144 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-09-21 10:17:49,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529119410] [2020-09-21 10:17:49,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:49,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 10:17:49,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237463854] [2020-09-21 10:17:49,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 10:17:49,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:49,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 10:17:49,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-21 10:17:49,064 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand 14 states. [2020-09-21 10:17:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:49,482 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2020-09-21 10:17:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 10:17:49,483 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 108 [2020-09-21 10:17:49,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:49,484 INFO L225 Difference]: With dead ends: 86 [2020-09-21 10:17:49,484 INFO L226 Difference]: Without dead ends: 67 [2020-09-21 10:17:49,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2020-09-21 10:17:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-21 10:17:49,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-21 10:17:49,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-21 10:17:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2020-09-21 10:17:49,497 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 108 [2020-09-21 10:17:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:49,498 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2020-09-21 10:17:49,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 10:17:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2020-09-21 10:17:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-21 10:17:49,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:49,500 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:49,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 10:17:49,501 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:49,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:49,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2107974185, now seen corresponding path program 10 times [2020-09-21 10:17:49,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:49,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050182391] [2020-09-21 10:17:49,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:49,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-21 10:17:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 404 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2020-09-21 10:17:50,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050182391] [2020-09-21 10:17:50,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:50,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 10:17:50,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773043855] [2020-09-21 10:17:50,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 10:17:50,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:50,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 10:17:50,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-21 10:17:50,130 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand 14 states. [2020-09-21 10:17:50,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:50,684 INFO L93 Difference]: Finished difference Result 118 states and 179 transitions. [2020-09-21 10:17:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:17:50,691 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-09-21 10:17:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:50,692 INFO L225 Difference]: With dead ends: 118 [2020-09-21 10:17:50,693 INFO L226 Difference]: Without dead ends: 66 [2020-09-21 10:17:50,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=716, Unknown=0, NotChecked=0, Total=870 [2020-09-21 10:17:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-21 10:17:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2020-09-21 10:17:50,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-21 10:17:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2020-09-21 10:17:50,701 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 182 [2020-09-21 10:17:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:50,702 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2020-09-21 10:17:50,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 10:17:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2020-09-21 10:17:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-21 10:17:50,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:50,704 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:50,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 10:17:50,705 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:50,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:50,705 INFO L82 PathProgramCache]: Analyzing trace with hash 836851019, now seen corresponding path program 11 times [2020-09-21 10:17:50,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:50,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516962131] [2020-09-21 10:17:50,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:50,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-21 10:17:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2020-09-21 10:17:51,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516962131] [2020-09-21 10:17:51,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:51,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 10:17:51,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052107670] [2020-09-21 10:17:51,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 10:17:51,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:51,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 10:17:51,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-09-21 10:17:51,821 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand 21 states. [2020-09-21 10:17:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:52,802 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2020-09-21 10:17:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-21 10:17:52,803 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 188 [2020-09-21 10:17:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:52,806 INFO L225 Difference]: With dead ends: 95 [2020-09-21 10:17:52,806 INFO L226 Difference]: Without dead ends: 91 [2020-09-21 10:17:52,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=1339, Unknown=0, NotChecked=0, Total=1482 [2020-09-21 10:17:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-21 10:17:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-21 10:17:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-21 10:17:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2020-09-21 10:17:52,817 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 188 [2020-09-21 10:17:52,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:52,817 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2020-09-21 10:17:52,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 10:17:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2020-09-21 10:17:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-21 10:17:52,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:52,821 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 24, 23, 23, 23, 23, 23, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:52,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 10:17:52,822 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:52,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:52,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1987597643, now seen corresponding path program 12 times [2020-09-21 10:17:52,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:52,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888691708] [2020-09-21 10:17:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:52,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:52,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-09-21 10:17:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 455 proven. 975 refuted. 0 times theorem prover too weak. 3430 trivial. 0 not checked. [2020-09-21 10:17:53,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888691708] [2020-09-21 10:17:53,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:53,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 10:17:53,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776833436] [2020-09-21 10:17:53,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 10:17:53,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:53,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 10:17:53,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:17:53,764 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand 13 states. [2020-09-21 10:17:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:54,521 INFO L93 Difference]: Finished difference Result 155 states and 241 transitions. [2020-09-21 10:17:54,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 10:17:54,522 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 268 [2020-09-21 10:17:54,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:54,525 INFO L225 Difference]: With dead ends: 155 [2020-09-21 10:17:54,525 INFO L226 Difference]: Without dead ends: 100 [2020-09-21 10:17:54,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=262, Invalid=998, Unknown=0, NotChecked=0, Total=1260 [2020-09-21 10:17:54,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-21 10:17:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2020-09-21 10:17:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-21 10:17:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2020-09-21 10:17:54,550 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 268 [2020-09-21 10:17:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:54,551 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2020-09-21 10:17:54,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 10:17:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2020-09-21 10:17:54,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-21 10:17:54,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:54,558 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:54,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 10:17:54,559 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:54,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:54,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1322769943, now seen corresponding path program 13 times [2020-09-21 10:17:54,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:54,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316861552] [2020-09-21 10:17:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:54,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:54,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:54,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:54,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-21 10:17:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 423 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2020-09-21 10:17:55,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316861552] [2020-09-21 10:17:55,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:55,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 10:17:55,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644015305] [2020-09-21 10:17:55,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 10:17:55,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:55,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 10:17:55,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-09-21 10:17:55,384 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand 16 states. [2020-09-21 10:17:56,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:56,353 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2020-09-21 10:17:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 10:17:56,354 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 194 [2020-09-21 10:17:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:56,356 INFO L225 Difference]: With dead ends: 135 [2020-09-21 10:17:56,356 INFO L226 Difference]: Without dead ends: 88 [2020-09-21 10:17:56,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2020-09-21 10:17:56,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-21 10:17:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-09-21 10:17:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-21 10:17:56,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2020-09-21 10:17:56,366 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 194 [2020-09-21 10:17:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:56,366 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2020-09-21 10:17:56,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 10:17:56,366 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2020-09-21 10:17:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-09-21 10:17:56,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:56,372 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:56,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 10:17:56,372 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:56,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:56,373 INFO L82 PathProgramCache]: Analyzing trace with hash -547968693, now seen corresponding path program 14 times [2020-09-21 10:17:56,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:56,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079141012] [2020-09-21 10:17:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:56,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:56,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:17:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-09-21 10:17:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:57,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:58,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1097 refuted. 0 times theorem prover too weak. 7431 trivial. 0 not checked. [2020-09-21 10:17:58,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079141012] [2020-09-21 10:17:58,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:17:58,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 10:17:58,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159845456] [2020-09-21 10:17:58,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 10:17:58,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:17:58,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 10:17:58,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-09-21 10:17:58,034 INFO L87 Difference]: Start difference. First operand 84 states and 118 transitions. Second operand 16 states. [2020-09-21 10:17:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:17:58,689 INFO L93 Difference]: Finished difference Result 151 states and 234 transitions. [2020-09-21 10:17:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 10:17:58,689 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 348 [2020-09-21 10:17:58,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:17:58,691 INFO L225 Difference]: With dead ends: 151 [2020-09-21 10:17:58,691 INFO L226 Difference]: Without dead ends: 78 [2020-09-21 10:17:58,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=1041, Unknown=0, NotChecked=0, Total=1260 [2020-09-21 10:17:58,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-21 10:17:58,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2020-09-21 10:17:58,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 10:17:58,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2020-09-21 10:17:58,701 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 348 [2020-09-21 10:17:58,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:17:58,702 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2020-09-21 10:17:58,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 10:17:58,702 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2020-09-21 10:17:58,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-09-21 10:17:58,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:17:58,706 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:17:58,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 10:17:58,707 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:17:58,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:17:58,707 INFO L82 PathProgramCache]: Analyzing trace with hash -604098025, now seen corresponding path program 15 times [2020-09-21 10:17:58,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:17:58,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762106232] [2020-09-21 10:17:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:17:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:17:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:17:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:17:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:17:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:17:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:17:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:17:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-09-21 10:18:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:01,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2020-09-21 10:18:01,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762106232] [2020-09-21 10:18:01,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:01,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 10:18:01,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908747971] [2020-09-21 10:18:01,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 10:18:01,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:01,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 10:18:01,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-09-21 10:18:01,284 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand 25 states. [2020-09-21 10:18:02,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:18:02,677 INFO L93 Difference]: Finished difference Result 110 states and 147 transitions. [2020-09-21 10:18:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-21 10:18:02,678 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 354 [2020-09-21 10:18:02,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:18:02,680 INFO L225 Difference]: With dead ends: 110 [2020-09-21 10:18:02,680 INFO L226 Difference]: Without dead ends: 106 [2020-09-21 10:18:02,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=175, Invalid=1987, Unknown=0, NotChecked=0, Total=2162 [2020-09-21 10:18:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-21 10:18:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 99. [2020-09-21 10:18:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-21 10:18:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 136 transitions. [2020-09-21 10:18:02,693 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 136 transitions. Word has length 354 [2020-09-21 10:18:02,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:18:02,694 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 136 transitions. [2020-09-21 10:18:02,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 10:18:02,694 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 136 transitions. [2020-09-21 10:18:02,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-09-21 10:18:02,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:18:02,698 INFO L422 BasicCegarLoop]: trace histogram [95, 95, 48, 47, 47, 47, 47, 47, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:18:02,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 10:18:02,699 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:18:02,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:18:02,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1040265751, now seen corresponding path program 16 times [2020-09-21 10:18:02,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:18:02,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33077330] [2020-09-21 10:18:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:18:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:18:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:03,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-09-21 10:18:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1138 proven. 2665 refuted. 0 times theorem prover too weak. 16271 trivial. 0 not checked. [2020-09-21 10:18:04,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33077330] [2020-09-21 10:18:04,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:04,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 10:18:04,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241440718] [2020-09-21 10:18:04,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 10:18:04,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:04,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 10:18:04,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-21 10:18:04,934 INFO L87 Difference]: Start difference. First operand 99 states and 136 transitions. Second operand 15 states. [2020-09-21 10:18:05,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:18:05,846 INFO L93 Difference]: Finished difference Result 185 states and 297 transitions. [2020-09-21 10:18:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-21 10:18:05,847 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 514 [2020-09-21 10:18:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:18:05,849 INFO L225 Difference]: With dead ends: 185 [2020-09-21 10:18:05,849 INFO L226 Difference]: Without dead ends: 118 [2020-09-21 10:18:05,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=379, Invalid=1513, Unknown=0, NotChecked=0, Total=1892 [2020-09-21 10:18:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-09-21 10:18:05,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 102. [2020-09-21 10:18:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-09-21 10:18:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 138 transitions. [2020-09-21 10:18:05,862 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 138 transitions. Word has length 514 [2020-09-21 10:18:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:18:05,862 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 138 transitions. [2020-09-21 10:18:05,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 10:18:05,863 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 138 transitions. [2020-09-21 10:18:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-09-21 10:18:05,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:18:05,865 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:18:05,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 10:18:05,866 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:18:05,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:18:05,866 INFO L82 PathProgramCache]: Analyzing trace with hash 800684683, now seen corresponding path program 17 times [2020-09-21 10:18:05,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:18:05,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821854243] [2020-09-21 10:18:05,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:18:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:18:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:06,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-09-21 10:18:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1122 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2020-09-21 10:18:07,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821854243] [2020-09-21 10:18:07,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:07,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 10:18:07,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856206921] [2020-09-21 10:18:07,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 10:18:07,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:07,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 10:18:07,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:18:07,233 INFO L87 Difference]: Start difference. First operand 102 states and 138 transitions. Second operand 18 states. [2020-09-21 10:18:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:18:07,944 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2020-09-21 10:18:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 10:18:07,945 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 360 [2020-09-21 10:18:07,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:18:07,948 INFO L225 Difference]: With dead ends: 116 [2020-09-21 10:18:07,948 INFO L226 Difference]: Without dead ends: 91 [2020-09-21 10:18:07,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=282, Invalid=1278, Unknown=0, NotChecked=0, Total=1560 [2020-09-21 10:18:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-21 10:18:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2020-09-21 10:18:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-21 10:18:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2020-09-21 10:18:07,959 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 360 [2020-09-21 10:18:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:18:07,959 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2020-09-21 10:18:07,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 10:18:07,959 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2020-09-21 10:18:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-09-21 10:18:07,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:18:07,963 INFO L422 BasicCegarLoop]: trace histogram [95, 95, 48, 47, 47, 47, 47, 47, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:18:07,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 10:18:07,964 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:18:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:18:07,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1908418025, now seen corresponding path program 18 times [2020-09-21 10:18:07,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:18:07,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751630364] [2020-09-21 10:18:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:18:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:18:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:08,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2020-09-21 10:18:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-09-21 10:18:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1630 proven. 2173 refuted. 0 times theorem prover too weak. 16271 trivial. 0 not checked. [2020-09-21 10:18:09,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751630364] [2020-09-21 10:18:09,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:09,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 10:18:09,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355431015] [2020-09-21 10:18:09,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 10:18:09,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:09,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 10:18:09,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-21 10:18:09,857 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 15 states. [2020-09-21 10:18:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:18:10,704 INFO L93 Difference]: Finished difference Result 177 states and 281 transitions. [2020-09-21 10:18:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-21 10:18:10,706 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 514 [2020-09-21 10:18:10,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:18:10,708 INFO L225 Difference]: With dead ends: 177 [2020-09-21 10:18:10,708 INFO L226 Difference]: Without dead ends: 101 [2020-09-21 10:18:10,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=370, Invalid=1522, Unknown=0, NotChecked=0, Total=1892 [2020-09-21 10:18:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-21 10:18:10,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 84. [2020-09-21 10:18:10,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-21 10:18:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2020-09-21 10:18:10,728 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 514 [2020-09-21 10:18:10,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:18:10,728 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2020-09-21 10:18:10,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 10:18:10,729 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2020-09-21 10:18:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2020-09-21 10:18:10,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:18:10,734 INFO L422 BasicCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:18:10,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-21 10:18:10,738 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:18:10,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:18:10,738 INFO L82 PathProgramCache]: Analyzing trace with hash 2099436055, now seen corresponding path program 19 times [2020-09-21 10:18:10,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:18:10,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289009591] [2020-09-21 10:18:10,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:18:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:12,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:18:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:12,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2020-09-21 10:18:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2020-09-21 10:18:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2762 refuted. 0 times theorem prover too weak. 32675 trivial. 0 not checked. [2020-09-21 10:18:14,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289009591] [2020-09-21 10:18:14,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:14,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 10:18:14,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615465734] [2020-09-21 10:18:14,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 10:18:14,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:14,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 10:18:14,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:18:14,724 INFO L87 Difference]: Start difference. First operand 84 states and 118 transitions. Second operand 18 states. [2020-09-21 10:18:15,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:18:15,697 INFO L93 Difference]: Finished difference Result 94 states and 135 transitions. [2020-09-21 10:18:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-21 10:18:15,698 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 674 [2020-09-21 10:18:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:18:15,701 INFO L225 Difference]: With dead ends: 94 [2020-09-21 10:18:15,701 INFO L226 Difference]: Without dead ends: 90 [2020-09-21 10:18:15,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=296, Invalid=1426, Unknown=0, NotChecked=0, Total=1722 [2020-09-21 10:18:15,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-21 10:18:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2020-09-21 10:18:15,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-21 10:18:15,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 121 transitions. [2020-09-21 10:18:15,710 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 121 transitions. Word has length 674 [2020-09-21 10:18:15,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:18:15,712 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 121 transitions. [2020-09-21 10:18:15,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 10:18:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 121 transitions. [2020-09-21 10:18:15,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2020-09-21 10:18:15,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:18:15,718 INFO L422 BasicCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:18:15,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-21 10:18:15,718 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:18:15,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:18:15,719 INFO L82 PathProgramCache]: Analyzing trace with hash 2092966539, now seen corresponding path program 20 times [2020-09-21 10:18:15,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:18:15,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010651488] [2020-09-21 10:18:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:18:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:18:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:16,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:17,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2020-09-21 10:18:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:18,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:20,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2020-09-21 10:18:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:20,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:20,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:20,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:20,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 12010 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-09-21 10:18:21,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010651488] [2020-09-21 10:18:21,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:21,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-21 10:18:21,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695144668] [2020-09-21 10:18:21,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-21 10:18:21,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:21,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-21 10:18:21,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=756, Unknown=0, NotChecked=0, Total=812 [2020-09-21 10:18:21,114 INFO L87 Difference]: Start difference. First operand 87 states and 121 transitions. Second operand 29 states. [2020-09-21 10:18:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:18:23,136 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2020-09-21 10:18:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-21 10:18:23,137 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 680 [2020-09-21 10:18:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:18:23,139 INFO L225 Difference]: With dead ends: 125 [2020-09-21 10:18:23,140 INFO L226 Difference]: Without dead ends: 121 [2020-09-21 10:18:23,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=207, Invalid=2763, Unknown=0, NotChecked=0, Total=2970 [2020-09-21 10:18:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-21 10:18:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2020-09-21 10:18:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 10:18:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2020-09-21 10:18:23,168 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 680 [2020-09-21 10:18:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:18:23,170 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2020-09-21 10:18:23,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-21 10:18:23,170 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2020-09-21 10:18:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2020-09-21 10:18:23,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:18:23,191 INFO L422 BasicCegarLoop]: trace histogram [191, 191, 96, 95, 95, 95, 95, 95, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:18:23,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-21 10:18:23,191 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:18:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:18:23,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1334715019, now seen corresponding path program 21 times [2020-09-21 10:18:23,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:18:23,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170248796] [2020-09-21 10:18:23,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:18:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:18:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:24,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:24,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2020-09-21 10:18:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:25,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2020-09-21 10:18:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 10:18:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:26,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:18:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:18:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 10:18:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:18:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2020-09-21 10:18:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:27,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:18:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:18:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 81590 backedges. 2688 proven. 6748 refuted. 0 times theorem prover too weak. 72154 trivial. 0 not checked. [2020-09-21 10:18:28,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170248796] [2020-09-21 10:18:28,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:18:28,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 10:18:28,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225442543] [2020-09-21 10:18:28,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 10:18:28,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:18:28,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 10:18:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-09-21 10:18:28,256 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand 17 states.